[OpenWrt-Devel] Ethernet problems with trunk on brcm47xx

[Paul Sokolovsky]

Hello,

I upgraded my Asus WL-500g Deluxe from 10.03.1 to today's daily build
of trunk ("BARRIER BREAKER (Bleeding Edge, r41302)") to test fix for
issue https://dev.openwrt.org/ticket/7552 .

After upgrade, all WiFi clients work ok. However, all wired ethernet
clients lost connectivity. All obvious checks like leds blinking for
lan ports, swconfig dev eth0 show showing connected ports up, dnsmasq
running on udp 0.0.0.0:67, pass. Ultimately, doing "logread -f" and
connecting cable to my RasPi I see:

Mon Jun 23 22:54:14 2014 daemon.info dnsmasq-dhcp[905]: DHCPDISCOVER(br-lan) b8:27:eb:2d:38:4d 
Mon Jun 23 22:54:14 2014 daemon.info dnsmasq-dhcp[905]: DHCPOFFER(br-lan) 192.168.15.177 b8:27:eb:2d:38:4d 
Mon Jun 23 22:54:17 2014 daemon.info dnsmasq-dhcp[905]: DHCPDISCOVER(br-lan) b8:27:eb:2d:38:4d 
Mon Jun 23 22:54:17 2014 daemon.info dnsmasq-dhcp[905]: DHCPOFFER(br-lan) 192.168.15.177 b8:27:eb:2d:38:4d 
Mon Jun 23 22:54:20 2014 daemon.info dnsmasq-dhcp[905]: DHCPDISCOVER(br-lan) b8:27:eb:2d:38:4d 
Mon Jun 23 22:54:20 2014 daemon.info dnsmasq-dhcp[905]: DHCPOFFER(br-lan) 192.168.15.177 b8:27:eb:2d:38:4d 

In other words, dnsmasq on router sees DHCP request from RasPi,
and replies to it with IP address, but RasPi never sees that reply and
keeps resending requests, until it gives up and autoassigns 169.*.

Worse, I cannot access a device with static IP address on the same
subnet connected via ethernet (from WiFi client or from router itself).
Also, if I connect via ethernet and set static IP on my laptop, I
cannot ping router from it. But I can ping and otherwise access another
ethernet device with static IP, so switch in router works as
expected ;-).

Intuitively, this would look like problem with bridging (eth0.0 ->
br-lan works, but the other direction doesn't), but brctl looks as
usual:

root at OpenWrt:~# brctl show
bridge name	bridge id		STP enabled	interfaces
br-lan		7fff.0015f23d7889	no		eth0.0
							wlan0


I would appreciate any hints (again, I upgraded, preserving config,
from 10.03.1, if that may be relevant).


Thanks,
 Paul                          mailto:pmiscml at gmail.com
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel