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Bug #216

closed

received packet on bat0 with own address as source address

Added by A Z almost 9 years ago. Updated about 7 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Target version:
2015.2
Start date:
05/30/2015
Due date:
% Done:

0%

Estimated time:

Description

Setup:
Nodes: 3 Batman-Nodes: A; B; C + Non-Batman-Nodes: D
Network: 1 IBSS WPA2-RSN Mesh Network with Nodes A+B+C (they see each other pairwise) + 1 LAN network with B+C+D

On A+B+C: bat0 is in bridge br-wlan, which also contains eth0.513 and an AP device (where A has no wire connected to eth0)
D is the local gateway (their are other non-batman nodes in the lan as well)
A+B+C run udhcpc (DHCP client) on br-wlan, which has the same mac as eth0.513

batman_adv: B.A.T.M.A.N. advanced 2014.4.0 (compatibility version 15) loaded
batman bridge loop avoidance enabled
distributed arp table: enabled

Problem: tcpdump shows packets looping all the time, load goes up and kernel complains as given in this issues subject (an similiar for eth0.513 instead of bat0)
When DAT is disabled - or either of B or C removed from br-wlan - looping stops and everythings works flawlessy.

B> tcpdump -n -e -i bat0 arp and host 0.0.0.0
23:03:57.209922 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:57.209813 00:0b:6b:7e:9e:75 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0c:f1:a6:e3:25, length 28
23:03:57.211611 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.212389 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:57.218334 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:57.217791 00:0b:6b:7e:9e:75 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0c:f1:a6:e3:25, length 28
23:03:57.219242 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.219343 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:57.243484 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 00:0c:f1:a6:e3:25, length 42
23:03:57.243579 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 00:0c:f1:a6:e3:25, length 42
23:03:57.243851 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:57.394645 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 43:05:43:05:95:93, length 42
23:03:57.394808 00:0b:6b:7e:9e:75 > 30:14:4a:7f:a7:a8, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 28
23:03:57.440743 66:65:6d:01:3d:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.440824 66:65:6d:01:2c:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.440872 66:65:6d:01:0e:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.440916 66:65:6d:01:50:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.440959 66:65:6d:01:39:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441003 66:65:6d:01:44:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441048 66:65:6d:01:1b:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441092 66:65:6d:01:3b:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441136 66:65:6d:01:01:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441180 66:65:6d:01:0f:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441224 66:65:6d:01:28:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441266 66:65:6d:01:0b:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441308 66:65:6d:01:11:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441352 66:65:6d:01:02:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441397 66:65:6d:01:24:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441441 66:65:6d:01:31:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441484 66:65:6d:01:05:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441535 00:12:cf:89:98:87 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441580 66:65:6d:01:10:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441626 66:65:6d:01:4c:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441683 00:12:cf:83:76:1a > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441731 66:65:6d:01:1d:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441775 66:65:6d:01:38:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441824 66:65:6d:01:1a:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441876 66:65:6d:01:42:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441921 66:65:6d:01:37:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.441970 66:65:6d:01:3c:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442023 66:65:6d:01:14:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442072 66:65:6d:01:2e:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442121 66:65:6d:01:49:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442166 66:65:6d:01:15:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442213 66:65:6d:01:13:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442259 66:65:6d:01:3e:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442351 66:65:6d:01:08:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442411 66:65:6d:01:09:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442462 66:65:6d:01:26:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442511 66:65:6d:01:12:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442560 66:65:6d:01:04:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442609 66:65:6d:01:32:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442657 66:65:6d:01:45:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442706 66:65:6d:01:41:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442754 66:65:6d:01:4b:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442799 66:65:6d:01:21:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442850 66:65:6d:01:47:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442900 66:65:6d:01:25:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442949 66:65:6d:01:18:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.442993 66:65:6d:01:07:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443042 66:65:6d:01:17:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443090 66:65:6d:01:36:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443135 66:65:6d:01:4a:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443208 66:65:6d:01:33:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443264 66:65:6d:01:34:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443316 66:65:6d:01:43:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443365 00:12:cf:81:73:dc > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443420 66:65:6d:01:48:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443469 66:65:6d:01:22:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443518 66:65:6d:01:03:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443565 66:65:6d:01:1e:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443610 66:65:6d:01:3f:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443661 00:12:cf:89:99:e9 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443707 66:65:6d:01:19:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443756 66:65:6d:01:4f:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443801 66:65:6d:01:0a:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.443850 66:65:6d:01:46:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.455405 66:65:6d:01:16:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.455485 66:65:6d:01:2d:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.462906 66:65:6d:01:0d:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.463017 66:65:6d:01:35:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.463062 66:65:6d:01:40:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.470851 66:65:6d:01:06:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.470922 00:12:cf:83:82:70 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:57.470969 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 43:05:43:05:95:93, length 42
23:03:57.488605 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 66:65:6d:01:0d:ff, length 42
23:03:57.689356 72:88:da:ac:13:a5 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.015337 66:65:6d:01:1d:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.030423 00:25:90:55:2b:2a > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:58.030502 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 66:65:6d:01:1d:ff, length 42
23:03:58.030700 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 00:25:90:55:2b:2a, length 42
23:03:58.032075 00:25:90:55:2b:2a > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:58.034139 66:65:6d:01:1d:ff > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.049168 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 66:65:6d:01:05:ff, length 42
23:03:58.049229 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 00:25:90:55:2b:2a, length 42
23:03:58.049276 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 66:65:6d:01:06:ff, length 42
23:03:58.162374 a8:54:b2:40:16:7f > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 60: Reply 0.0.0.0 is-at 43:05:43:05:89:9a, length 46
23:03:58.209789 00:0b:6b:7e:9e:75 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0c:f1:a6:e3:25, length 28
23:03:58.211393 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:58.218521 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.251034 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 00:0c:f1:a6:e3:25, length 42
23:03:58.251451 00:0c:f1:a6:e3:25 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.302383 00:25:90:d3:19:74 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 30:14:4a:7f:a7:a8, length 42
23:03:58.305078 00:25:90:d3:19:74 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.309042 00:25:90:55:2b:2a > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:0b:6b:7e:9e:75, length 28
23:03:58.324016 30:14:4a:7f:a7:a8 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: Reply 0.0.0.0 is-at 00:25:90:d3:19:74, length 42
23:03:58.338379 00:0b:6b:7e:9e:75 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Reply 0.0.0.0 is-at 00:25:90:55:2b:2a, length 28
...

B> batctl o
[B.A.T.M.A.N. adv 2014.4.0, MainIF/MAC: mesh1/00:0b:6b:7e:9e:75 (bat0 BATMAN_IV)]
Originator last-seen (#/255) Nexthop [outgoingIF]: Potential nexthops ...
a8:54:b2:40:16:7b 0.056s (251) a8:54:b2:40:16:7b [ mesh1]: 30:14:4a:7f:a7:a8 (198) a8:54:b2:40:16:7b (251)
30:14:4a:7f:a7:a8 0.880s (255) 30:14:4a:7f:a7:a8 [ mesh1]: a8:54:b2:40:16:7b (188) 30:14:4a:7f:a7:a8 (255)

C> batctl o
[B.A.T.M.A.N. adv 2014.4.0, MainIF/MAC: mesh1/30:14:4a:7f:a7:a8 (bat0 BATMAN_IV)]
Originator last-seen (#/255) Nexthop [outgoingIF]: Potential nexthops ...
a8:54:b2:40:16:7b 0.632s (255) a8:54:b2:40:16:7b [ mesh1]: 00:0b:6b:7e:9e:75 (188) a8:54:b2:40:16:7b (255)
00:0b:6b:7e:9e:75 0.024s (247) 00:0b:6b:7e:9e:75 [ mesh1]: a8:54:b2:40:16:7b (198) 00:0b:6b:7e:9e:75 (247)

B> batctl bbt
Backbones announced for the mesh bat0 (orig 00:0b:6b:7e:9e:75, group id 0xf287)
Originator VID last seen (CRC ) * 30:14:4a:7f:a7:a8 on -1 2.760s (0x0000)

C>batctl bbt
Backbones announced for the mesh bat0 (orig 30:14:4a:7f:a7:a8, group id 0xf287)
Originator VID last seen (CRC ) * 00:0b:6b:7e:9e:75 on -1 8.488s (0xd240)

after DAT disabled:
B> batctl cl
Claims announced for the mesh bat0 (orig 00:0b:6b:7e:9e:75, group id 0xf287)
Client VID Originator [o] (CRC ) * 66:65:6d:01:1f:ff on -1 by 30:14:4a:7f:a7:a8 [ ] (0xd240)

C> batctl cl
Claims announced for the mesh bat0 (orig 30:14:4a:7f:a7:a8, group id 0xf287)
Client VID Originator [o] (CRC ) * 66:65:6d:01:1f:ff on -1 by 30:14:4a:7f:a7:a8 [x] (0xd240)

which is small because it only lists the mac of br-wlan on A (66:65:6d:01:1f:ff is br-wlan mac of A)

When DAT enabled, "batctl cl" on B is big and lists all most every client on LAN as owned by C * 66:65:6d:01:01:ff on -1 by 30:14:4a:7f:a7:a8 [ ] (0x3e58)
and some by B * 66:65:6d:01:1f:ff on -1 by 00:0b:6b:7e:9e:75 [x] (0x58d6)

I think this is a bug as packets should not loop with DAT enabled.

Files

Download all files
0001-batman-adv-avoid-DAT-to-mess-up-LAN-state.patch (2.77 KB) 0001-batman-adv-avoid-DAT-to-mess-up-LAN-state.patch Antonio Quartulli, 06/01/2015 05:35 PM
femap0106-tcpdump-60s.pcap.gz (2.38 MB) femap0106-tcpdump-60s.pcap.gz tcpdump -i bat0 running on B A Z, 06/05/2015 09:01 AM
0001-batman-adv-lock-crc-access-in-bridge-loop-avoidance.patch (5.9 KB) 0001-batman-adv-lock-crc-access-in-bridge-loop-avoidance.patch Simon Wunderlich, 06/11/2015 06:48 PM
0002-batman-adv-DEBUG-track-CRC-changes.patch (2.97 KB) 0002-batman-adv-DEBUG-track-CRC-changes.patch Simon Wunderlich, 06/11/2015 06:48 PM
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