| 1 | ############################################################################## |
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| 2 | # batctl - B.A.T.M.A.N. advanced control and management tool # |
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| 3 | ############################################################################## |
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| 4 | |
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| 5 | |
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| 6 | |
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| 7 | Introduction |
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| 8 | ============ |
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| 9 | |
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| 10 | Why do I need batctl ? B.A.T.M.A.N. advanced operates on layer 2 and thus all |
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| 11 | hosts participating in the virtual switch are completely transparent for all |
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| 12 | protocols above layer 2. Therefore the common diagnosis tools do not work as |
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| 13 | expected. To overcome these problems batctl was created. At the moment batctl |
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| 14 | contains ping, traceroute, tcpdump and interfaces to the kernel module |
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| 15 | settings. |
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| 16 | |
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| 17 | |
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| 18 | How does it work ? |
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| 19 | ================== |
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| 20 | |
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| 21 | batctl uses the /dev/batman-adv device provided by the B.A.T.M.A.N. advanced |
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| 22 | kernel module to inject custom icmp packets into the data flow. That's why |
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| 23 | ping and traceroute work almost like their IP based counterparts. Tcpdump was |
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| 24 | designed because B.A.T.M.A.N. advanced encapsulates all traffic within batman |
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| 25 | packets, so that the normal tcpdump would not recognize the packets. |
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| 26 | |
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| 27 | |
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| 28 | The bat-hosts file |
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| 29 | ================== |
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| 30 | |
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| 31 | This file is simliar to the /etc/hosts file. You can write one MAC address and |
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| 32 | one host name per line. batctl will analyze the file to find the matching MAC |
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| 33 | address to your provided host name. Host names are much easier to remember |
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| 34 | than MAC addresses. ;) |
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| 35 | |
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| 36 | |
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| 37 | batctl ping |
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| 38 | ============ |
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| 39 | |
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| 40 | Sends a Layer 2 batman-adv ping to check round trip time and connectivity |
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| 41 | |
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| 42 | Usage: batctl ping [options] mac|bat-host |
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| 43 | options: |
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| 44 | -c ping packet count |
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| 45 | -h print this help |
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| 46 | -i interval in seconds |
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| 47 | -t timeout in seconds |
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| 48 | |
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| 49 | Example: |
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| 50 | |
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| 51 | $ batctl ping fe:fe:00:00:09:01 |
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| 52 | PING fe:fe:00:00:09:01 (fe:fe:00:00:09:01) 19(47) bytes of data |
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| 53 | 19 bytes from fe:fe:00:00:09:01 icmp_seq=1 ttl=43 time=8.74 ms |
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| 54 | 19 bytes from fe:fe:00:00:09:01 icmp_seq=2 ttl=43 time=7.48 ms |
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| 55 | 19 bytes from fe:fe:00:00:09:01 icmp_seq=3 ttl=43 time=8.23 ms |
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| 56 | ^C--- fe:fe:00:00:09:01 ping statistics --- |
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| 57 | 3 packets transmitted, 3 received, 0% packet loss |
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| 58 | rtt min/avg/max/mdev = 7.476/8.151/8.743/1.267 ms |
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| 59 | |
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| 60 | batctl traceroute |
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| 61 | ================== |
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| 62 | |
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| 63 | Traceroute sends 3 packets to each hop, awaits the answers and prints out the |
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| 64 | response times. |
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| 65 | |
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| 66 | Usage: batctl traceroute [options] mac|bat-host |
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| 67 | |
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| 68 | Example: |
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| 69 | |
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| 70 | $ batctl traceroute fe:fe:00:00:09:01 |
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| 71 | traceroute to fe:fe:00:00:09:01 (fe:fe:00:00:09:01), 50 hops max, 19 byte packets |
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| 72 | 1: fe:fe:00:00:02:01 4.932 ms 2.338 ms 1.333 ms |
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| 73 | 2: fe:fe:00:00:03:01 6.860 ms 1.579 ms 1.260 ms |
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| 74 | 3: fe:fe:00:00:04:01 2.342 ms 1.547 ms 1.655 ms |
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| 75 | 4: fe:fe:00:00:05:01 2.906 ms 2.211 ms 2.253 ms |
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| 76 | 5: fe:fe:00:00:06:01 3.577 ms 2.687 ms 3.088 ms |
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| 77 | 6: fe:fe:00:00:07:01 4.217 ms 5.741 ms 3.551 ms |
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| 78 | 7: fe:fe:00:00:08:01 5.017 ms 5.547 ms 4.294 ms |
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| 79 | 8: fe:fe:00:00:09:01 5.730 ms 4.970 ms 6.437 ms |
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| 80 | |
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| 81 | |
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| 82 | |
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| 83 | batctl tcpdump |
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| 84 | =============== |
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| 85 | |
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| 86 | tcpdump layer 2 traffic on the given interface |
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| 87 | |
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| 88 | Usage: batctl tcpdump [options] interface [interface] |
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| 89 | options: |
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| 90 | -h print this help |
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| 91 | -n don't convert addresses to bat-host names |
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| 92 | -p dump specific packet type |
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| 93 | 1 - batman ogm packets |
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| 94 | 2 - batman icmp packets |
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| 95 | 4 - batman unicast packets |
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| 96 | 8 - batman broadcast packets |
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| 97 | 16 - batman vis packets |
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| 98 | 32 - non batman packets |
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| 99 | 33 - batman ogm & non batman packets |
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| 100 | |
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| 101 | Example output for tcpdump: |
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| 102 | |
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| 103 | $ batctl tcpdump mesh0 |
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| 104 | 01:51:42.401188 BAT kansas: OGM via neigh kansas, seqno 6718, tq 255, ttl 50, v 9, flags [..I], length 28 |
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| 105 | 01:51:42.489735 BAT kansas: OGM via neigh wyoming, seqno 6718, tq 245, ttl 49, v 9, flags [.D.], length 28 |
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| 106 | 01:51:42.510330 BAT wyoming: OGM via neigh wyoming, seqno 6721, tq 255, ttl 50, v 9, flags [..I], length 28 |
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| 107 | 01:51:42.601092 BAT wyoming: OGM via neigh kansas, seqno 6721, tq 245, ttl 49, v 9, flags [.D.], length 28 |
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| 108 | 01:51:43.361076 BAT kansas > wyoming: ICMP echo request, id 0, seq 1, ttl 1, v 9, length 19 |
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| 109 | 01:51:43.365347 BAT wyoming > kansas: ICMP echo reply, id 0, seq 1, ttl 50, v 9, length 19 |
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| 110 | 01:51:43.372224 BAT kansas > wyoming: ICMP echo request, id 0, seq 2, ttl 1, v 9, length 19 |
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| 111 | 01:51:43.376506 BAT wyoming > kansas: ICMP echo reply, id 0, seq 2, ttl 50, v 9, length 19 |
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| 112 | 01:51:43.381250 BAT kansas: OGM via neigh kansas, seqno 6719, tq 255, ttl 50, v 9, flags [..I], length 28 |
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| 113 | 01:51:43.386281 BAT kansas > wyoming: ICMP echo request, id 0, seq 3, ttl 1, v 9, length 19 |
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| 114 | 01:51:43.387910 BAT wyoming > kansas: ICMP echo reply, id 0, seq 3, ttl 50, v 9, length 19 |
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| 115 | 01:51:43.479503 BAT kansas: OGM via neigh wyoming, seqno 6719, tq 245, ttl 49, v 9, flags [.D.], length 28 |
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| 116 | 01:51:43.509899 BAT wyoming: OGM via neigh wyoming, seqno 6722, tq 255, ttl 50, v 9, flags [..I], length 28 |
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| 117 | 01:51:43.600999 BAT wyoming: OGM via neigh kansas, seqno 6722, tq 245, ttl 49, v 9, flags [.D.], length 28 |
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| 118 | 01:51:44.381064 BAT kansas: OGM via neigh kansas, seqno 6720, tq 255, ttl 50, v 9, flags [..I], length 28 |
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| 119 | |
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| 120 | batctl bisect |
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| 121 | ============= |
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| 122 | |
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| 123 | Analyzes the logfiles to build a small internal database of all sent sequence |
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| 124 | numbers and routing table changes. This database can be used to search for |
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| 125 | routing loops (default action), to trace OGMs of a host (use "-t" to |
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| 126 | specify the mac address or bat-host name) throughout the network or to |
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| 127 | display routing tables of the nodes (use "-r" to specify the mac address or |
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| 128 | bat-host name). You can name a specific sequence number or a range using the |
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| 129 | "-s" option to limit the output's range. Furthermore you can filter the |
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| 130 | output by specifying an originator (use "-o" to specify the mac address or |
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| 131 | bat-host name) to only see data connected to this originator. If "-n" was |
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| 132 | given batctl will not replace the mac addresses with bat-host names in the |
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| 133 | output. |
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| 134 | |
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| 135 | Usage: batctl bisect [options] <file1> <file2> .. <fileN> |
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| 136 | options: |
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| 137 | -h print this help |
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| 138 | -l run a loop detection of given mac address or bat-host (default) |
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| 139 | -n don't convert addresses to bat-host names |
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| 140 | -r print routing tables of given mac address or bat-host |
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| 141 | -s seqno range to limit the output |
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| 142 | -t trace seqnos of given mac address or bat-host |
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| 143 | |
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| 144 | Examples: |
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| 145 | |
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| 146 | $ batctl bisect log/* -l uml3 |
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| 147 | Analyzing routing tables of originator: uml3 [all sequence numbers] |
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| 148 | |
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| 149 | Checking host: uml3 |
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| 150 | Path towards uml7 (seqno 9 via neigh uml5): -> uml5 -> uml6 |
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| 151 | Path towards uml7 (seqno 10 via neigh uml4): -> uml4 -> uml5 -> uml6 |
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| 152 | Path towards uml6 (seqno 4 via neigh uml4): -> uml4 |
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| 153 | Path towards uml8 (seqno 12 via neigh uml4): -> uml4 -> uml5 -> uml6 -> uml7 |
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| 154 | Path towards uml8 (seqno 203 via neigh uml4): -> uml4 -> uml6 -> uml7 |
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| 155 | Path towards uml8 (seqno 391 via neigh uml2): -> uml2 -> uml3 -> uml2 aborted due to loop! |
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| 156 | Path towards uml8 (seqno 396 via neigh uml4): -> uml4 -> uml6 -> uml7 |
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| 157 | Path towards uml9 (seqno 10 via neigh uml5): -> uml5 -> uml6 -> uml7 -> uml9. |
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| 158 | Path towards uml9 (seqno 10 via neigh uml4): -> uml4 -> uml5 -> uml6 -> uml7 -> uml9. |
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| 159 | Path towards uml9 (seqno 11 via neigh uml4): -> uml4 -> uml6 -> uml7 -> uml8 -> uml9. |
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| 160 | Path towards uml9 (seqno 12 via neigh uml4): -> uml4 -> uml5 -> uml6 -> uml7 -> uml8 -> uml9. |
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| 161 | Path towards uml9 (seqno 21 via neigh uml5): -> uml5 -> uml6 -> uml7 -> uml8 -> uml9. |
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| 162 | Path towards uml9 (seqno 22 via neigh uml4): -> uml4 -> uml5 -> uml6 -> uml7 -> uml8 -> uml9. |
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| 163 | |
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| 164 | $ ./batctl bisect -t uml3 log/* |
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| 165 | Sequence number flow of originator: uml3 [all sequence numbers] |
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| 166 | [...] |
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| 167 | +=> uml3 (seqno 19) |
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| 168 | |- uml2 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 169 | | |- uml3 [tq: 154, ttl: 49, neigh: uml2, prev_sender: uml3] |
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| 170 | | \- uml1 [tq: 154, ttl: 49, neigh: uml2, prev_sender: uml3] |
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| 171 | | |- uml3 [tq: 51, ttl: 48, neigh: uml1, prev_sender: uml2] |
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| 172 | | \- uml2 [tq: 51, ttl: 48, neigh: uml1, prev_sender: uml2] |
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| 173 | |- uml5 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 174 | | |- uml6 [tq: 33, ttl: 48, neigh: uml5, prev_sender: uml3] |
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| 175 | | | |- uml5 [tq: 11, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 176 | | | |- uml7 [tq: 11, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 177 | | | | |- uml8 [tq: 3, ttl: 46, neigh: uml7, prev_sender: uml6] |
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| 178 | | | | | |- uml6 [tq: 0, ttl: 45, neigh: uml8, prev_sender: uml7] |
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| 179 | | | | | |- uml9 [tq: 0, ttl: 45, neigh: uml8, prev_sender: uml7] |
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| 180 | | | | | \- uml7 [tq: 0, ttl: 45, neigh: uml8, prev_sender: uml7] |
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| 181 | | | | |- uml6 [tq: 3, ttl: 46, neigh: uml7, prev_sender: uml6] |
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| 182 | | | | |- uml9 [tq: 3, ttl: 46, neigh: uml7, prev_sender: uml6] |
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| 183 | | | | \- uml5 [tq: 3, ttl: 46, neigh: uml7, prev_sender: uml6] |
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| 184 | | | \- uml4 [tq: 11, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 185 | | |- uml7 [tq: 33, ttl: 48, neigh: uml5, prev_sender: uml3] |
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| 186 | | \- uml4 [tq: 33, ttl: 48, neigh: uml5, prev_sender: uml3] |
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| 187 | \- uml4 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 188 | |- uml3 [tq: 106, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 189 | |- uml6 [tq: 106, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 190 | |- uml2 [tq: 106, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 191 | \- uml5 [tq: 106, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 192 | +=> uml3 (seqno 20) |
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| 193 | |- uml2 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 194 | | |- uml3 [tq: 160, ttl: 49, neigh: uml2, prev_sender: uml3] |
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| 195 | | |- uml1 [tq: 160, ttl: 49, neigh: uml2, prev_sender: uml3] |
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| 196 | | \- uml4 [tq: 160, ttl: 49, neigh: uml2, prev_sender: uml3] |
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| 197 | |- uml5 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 198 | | |- uml3 [tq: 43, ttl: 48, neigh: uml5, prev_sender: uml3] |
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| 199 | | |- uml6 [tq: 43, ttl: 48, neigh: uml5, prev_sender: uml3] |
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| 200 | | | |- uml8 [tq: 16, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 201 | | | |- uml5 [tq: 16, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 202 | | | |- uml7 [tq: 16, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 203 | | | | |- uml8 [tq: 5, ttl: 46, neigh: uml7, prev_sender: uml6] |
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| 204 | | | | | |- uml6 [tq: 0, ttl: 45, neigh: uml8, prev_sender: uml7] |
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| 205 | | | | | |- uml9 [tq: 0, ttl: 45, neigh: uml8, prev_sender: uml7] |
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| 206 | | | | | \- uml7 [tq: 0, ttl: 45, neigh: uml8, prev_sender: uml7] |
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| 207 | | | | \- uml6 [tq: 5, ttl: 46, neigh: uml7, prev_sender: uml6] |
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| 208 | | | \- uml4 [tq: 16, ttl: 47, neigh: uml6, prev_sender: uml5] |
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| 209 | | \- uml4 [tq: 43, ttl: 48, neigh: uml5, prev_sender: uml3] |
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| 210 | |- uml1 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 211 | | \- uml2 [tq: 49, ttl: 48, neigh: uml1, prev_sender: uml3] |
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| 212 | \- uml4 [tq: 255, ttl: 50, neigh: uml3, prev_sender: uml3] |
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| 213 | |- uml3 [tq: 114, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 214 | |- uml6 [tq: 114, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 215 | |- uml2 [tq: 114, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 216 | \- uml5 [tq: 114, ttl: 49, neigh: uml4, prev_sender: uml3] |
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| 217 | [...] |
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| 218 | |
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| 219 | batctl originators |
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| 220 | ================== |
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| 221 | |
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| 222 | Check the Originators table |
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| 223 | |
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| 224 | Usage: batctl originators|o |
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| 225 | |
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| 226 | Example: |
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| 227 | |
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| 228 | $ batctl originators |
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| 229 | Originator (#/255) Nexthop [outgoingIF]: Potential nexthops ... [B.A.T.M.A.N. adv 0.2-beta r1457, MainIF/MAC: eth0/fe:fe:00:00:01:01] |
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| 230 | fe:fe:00:00:05:01 (223) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:03:01 ( 96) fe:fe:00:00:02:01 (223) |
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| 231 | fe:fe:00:00:04:01 (233) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:03:01 (100) fe:fe:00:00:02:01 (233) |
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| 232 | fe:fe:00:00:02:01 (254) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:02:01 (254) fe:fe:00:00:03:01 (100) |
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| 233 | fe:fe:00:00:07:01 (203) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:02:01 (203) fe:fe:00:00:03:01 ( 88) |
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| 234 | fe:fe:00:00:08:01 (196) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:03:01 ( 0) fe:fe:00:00:02:01 (196) |
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| 235 | fe:fe:00:00:03:01 (244) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:03:01 (104) fe:fe:00:00:02:01 (244) |
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| 236 | fe:fe:00:00:09:01 (184) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:02:01 (184) fe:fe:00:00:03:01 ( 72) |
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| 237 | fe:fe:00:00:06:01 (214) fe:fe:00:00:02:01 [ eth0]: fe:fe:00:00:03:01 ( 76) fe:fe:00:00:02:01 (214) |
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| 238 | |
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| 239 | batctl interface |
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| 240 | ================ |
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| 241 | |
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| 242 | display or modify the interface settings |
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| 243 | |
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| 244 | Usage: batctl interface|if [none|interface] |
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| 245 | |
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| 246 | Example: |
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| 247 | |
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| 248 | $ batctl interface |
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| 249 | [ active] eth0 fe:fe:00:00:01:01 |
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| 250 | |
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| 251 | batctl interval |
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| 252 | =============== |
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| 253 | |
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| 254 | display or modify the originator interval in ms |
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| 255 | |
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| 256 | Usage: batctl interval|it [orig_interval] |
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| 257 | |
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| 258 | Example: |
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| 259 | |
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| 260 | $ batctl interval |
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| 261 | 1000 |
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| 262 | |
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| 263 | batctl log |
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| 264 | ========== |
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| 265 | |
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| 266 | read the log produced by the kernel module |
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| 267 | |
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| 268 | Usage: batctl log|l |
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| 269 | |
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| 270 | Example: |
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| 271 | |
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| 272 | $ batctl log |
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| 273 | r) |
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| 274 | [ 400] Received BATMAN packet via NB: fe:fe:00:00:02:01 IF: eth0 [fe:fe:00:00:01:01] (from OG: fe:fe:00:00:01:01 via prev OG: fe:fe:00:00:01:01 seqno 670, tq 245, TTL 49, V 8, IDF 1) |
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| 275 | [ 400] Drop packet: originator packet from myself (via neighbour) |
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| 276 | [ 400] Received BATMAN packet via NB: fe:fe:00:00:02:01 IF: eth0 [fe:fe:00:00:01:01] (from OG: fe:fe:00:00:02:01 via prev OG: fe:fe:00:00:02:01 seqno 545, tq 255, TTL 50, V 8, IDF 0) |
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| 277 | [ 400] updating last_seqno: old 544, new 545 |
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| 278 | [ 400] bidirectional: orig = fe:fe:00:00:02:01 neigh = fe:fe:00:00:02:01 => own_bcast = 64, real recv = 64, local tq: 255, asym_penalty: 255, total tq: 255 |
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| 279 | [ 400] update_originator(): Searching and updating originator entry of received packet |
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| 280 | [ 400] Updating existing last-hop neighbour of originator |
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| 281 | [...] |
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| 282 | |
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| 283 | batctl loglevel |
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| 284 | =============== |
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| 285 | |
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| 286 | display or modify the log level |
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| 287 | |
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| 288 | Usage: batctl |ll [level] |
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| 289 | |
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| 290 | Example: |
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| 291 | $ batctl loglevel |
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| 292 | [x] critical (0) |
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| 293 | [x] warnings (1) |
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| 294 | [x] notices (2) |
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| 295 | [x] batman (4) |
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| 296 | [x] routes (8) |
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| 297 | |
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| 298 | batctl aggregation |
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| 299 | ================== |
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| 300 | |
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| 301 | display or modify the packet aggregation setting |
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| 302 | |
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| 303 | Usage: batctl aggregation|ag [0|1] |
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| 304 | |
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| 305 | batctl translocal |
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| 306 | ================= |
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| 307 | |
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| 308 | display the local translation table |
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| 309 | |
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| 310 | Usage: batctl translocal|tl |
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| 311 | |
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| 312 | Example: |
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| 313 | |
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| 314 | $ batctl translocal |
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| 315 | Locally retrieved addresses (from bat0) announced via HNA: |
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| 316 | * d6:e0:fd:d9:00:00 |
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| 317 | |
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| 318 | batctl transglobal |
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| 319 | ================== |
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| 320 | |
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| 321 | display the global translation table |
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| 322 | |
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| 323 | Usage: batctl transglobal|tg |
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| 324 | |
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| 325 | Example: |
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| 326 | |
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| 327 | Globally announced HNAs received via the mesh (translation table): |
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| 328 | * 16:aa:c4:a2:00:00 via fe:fe:00:00:09:01 |
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| 329 | * 5a:32:f9:df:00:00 via fe:fe:00:00:03:01 |
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| 330 | * 32:ae:5a:00:00:00 via fe:fe:00:00:04:01 |
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| 331 | * 86:88:80:29:00:00 via fe:fe:00:00:08:01 |
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| 332 | * 9e:d8:72:f2:00:00 via fe:fe:00:00:02:01 |
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| 333 | * 76:84:68:49:00:00 via fe:fe:00:00:05:01 |
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| 334 | * 86:4b:b2:d2:00:00 via fe:fe:00:00:07:01 |
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| 335 | * ca:a1:5b:e5:00:00 via fe:fe:00:00:06:01 |
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| 336 | |
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| 337 | batctl visformat |
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| 338 | ================ |
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| 339 | |
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| 340 | display or modify the vis output format |
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| 341 | |
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| 342 | Usage: batctl visformat|vf [format] |
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| 343 | |
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| 344 | Example: |
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| 345 | |
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| 346 | $ batctl visformat |
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| 347 | [x] dot_draw |
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| 348 | [ ] json |
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| 349 | |
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| 350 | |
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