I’ve not been able to work this out, it seemed to be working fine when I had one WAN port configured, then it appears to have all stopped working when I introduced another WAN2 port using LAN3 port.
DHCP stopped working for all interfaces and packet loss rose.
I have one LAN port configured as a tagged interface, with two new vlans interfaces, eth0.171, eth0.171
It seems that I can’t use DHCP Server on any interface now. Do I need to remove the LAN3 port from br-lan ? Or have my policy based routing rules introduced a new issue.
packet trace shows requests, and invalid packets, I suspect this is because the eth interface is recieving a tagge packet and cannot parse it.
The odd thing is that if I connect a standalone PC directly to another port on br-lan, DHCP no longer works as well.
I see no DHCP replies when I run a packet trace on the RUTX11.
tcpdump: data link type LINUX_SLL2
tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
listening on any, link-type LINUX_SLL2 (Linux cooked v2), snapshot length 262144 bytes
15:26:55.224348 eth0 B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:26:55.224396 wlan0-1 Out IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:26:55.224435 wlan1-2 Out IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:26:55.224348 br-lan B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:26:55.613556 eth0 B IP14 (invalid)
15:26:55.613556 eth0.171 B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:11:ef:5e, length 298
15:26:56.132761 eth0 B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 294
15:26:56.132814 wlan0-1 Out IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 294
15:26:56.132856 wlan1-2 Out IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 294
15:26:56.132761 br-lan B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 294
15:27:02.475300 eth0 B IP14 (invalid)
15:27:02.475300 eth0.171 B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:11:ef:5e, length 300
15:27:04.178534 eth0 B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:27:04.178643 wlan0-1 Out IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:27:04.178694 wlan1-2 Out IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
15:27:04.178534 br-lan B IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from bc:24:11:32:bd:24, length 300
Any help appreciated.
Thanks.





