Ticket #263 (new bug)
Encapsulation/Decapsolation Problem on LAN (eth0.0) / Priveledged WLAN Interface (ath1) bridge
| Reported by: | georg-fon.com@… | Owned by: | john.crispin@… |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | fon-network | Version: | |
| Severity: | |||
| Cc: | Hardware: |
Description
Hi,
i have problems with bridging data when transfering data between eth0.0 and ath1.
When sending a package (src lanstation/dst wireless station) which is larger then 1469 bytes (payload) it will not be transmitted. Sending a package the other way (src wireless station/dst lanstation) works. transfering data between wireless station and lan station is no problem as long as transfering data between wireless station and fonero is no problem, transfering data between lan station and fonero is no problem.
This might be unnoticed so far as most user will use the fonero as router, therfore dont transfer data between eth0.0 and ath1 interface.
As this is only a problem in one way, i guess there is a problem in vlan encapsulation/decapsulation ..
How to reproduce:
ping from lan station ip to wireless station with the command:
# ping -t s 1500 <wireless station ip>
you will see only the second icmp fragment when using tcpdump on the wireless station ip, the first one (larger then 1469 byte) is dropped.
root@Fonera:~# cat /etc/fon_version 2.2.5 root@Fonera:~# brctl show bridge name bridge id STP enabled interfaces br-lan 8000.001884d0034c no ath1 root@Fonera:~# ifconfig ath1 ath1 Link encap:Ethernet HWaddr 00:18:84:D0:03:4E
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:12410 errors:0 dropped:6216 overruns:0 frame:0 TX packets:7706 errors:0 dropped:60 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4672690 (4.4 MiB) TX bytes:3175437 (3.0 MiB)
root@Fonera:~# ifconfig eth0.0 eth0.0 Link encap:Ethernet HWaddr 00:18:84:D0:03:4C
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8132 errors:0 dropped:0 overruns:0 frame:0 TX packets:4838 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2855625 (2.7 MiB) TX bytes:1550872 (1.4 MiB)
