On Sun, Jul 13, 2014 at 10:11 AM, Björn Ketelaars < bjorn.ketela...@hydroxide.nl> wrote:
> It sounds like that your default inet route is overwritten after dhclient > on vlan1 is issued. That's not something I'd expect, given that the dhclient instances should be in separate routing domains. > Did you have a look at the route table before and after each call of > dhclient? > That was my initial suspicion and one of my reasons for trying to separate things into rdomain 1. I logged routing tables every second or so while manually running dhclient for vlan1 (instead of via hostname.if). Before: # netstat -T0 -nrfinet Internet: Destination Gateway Flags Refs Use Mtu Prio Iface default 84.245.29.1 UGS 7 1871091 - 8 vlan0 84.245.29/24 link#5 UC 1 0 - 4 vlan0 84.245.29.1 00:30:88:16:ac:fd UHLc 1 0 - 4 vlan0 127/8 127.0.0.1 UGRS 0 0 33144 8 lo0 127.0.0.1 127.0.0.1 UH 2 29313 33144 4 lo0 192.168.1.2 00:25:90:33:12:65 UHLc 0 16 - 4 lo0 224/4 127.0.0.1 URS 0 0 33144 8 lo0 # netstat -T1 -nrfinet Internet: Destination Gateway Flags Refs Use Mtu Prio Iface 10.0.52/24 link#15 UC 0 0 - 4 vlan52 # route -T1 exec /sbin/dhclient vlan1 Gives me an IP on vlan1 and routes in rdomain 1, but kills connectivity on vlan0 after the first DHCPREQUEST goes out on vlan1. # ps ax | grep dhclient | grep -v grep 23596 ?? Is 0:00.02 dhclient: vlan0 [priv] (dhclient) 27697 ?? Is 0:00.48 dhclient: vlan0 (dhclient) 12813 ?? Ss 0:00.00 dhclient: vlan1 [priv] (dhclient) 10342 p7 Z+ 0:00.00 (dhclient) 7017 p7 S+ 0:00.01 dhclient: vlan1 (dhclient) Note the zombie dhclient in between. I don't know why it's there. A few seconds later, vlan1 appears to have its address and - I assume - the zombie is reaped. # ps ax | grep dhclient | grep -v grep 23596 ?? Is 0:00.02 dhclient: vlan0 [priv] (dhclient) 27697 ?? Is 0:00.48 dhclient: vlan0 (dhclient) 12813 ?? Ss 0:00.01 dhclient: vlan1 [priv] (dhclient) 19415 ?? Ss 0:00.00 dhclient: vlan1 (dhclient) # netstat -T0 -nrfinet Internet: Destination Gateway Flags Refs Use Mtu Prio Iface default 84.245.29.1 UGS 7 1871093 - 8 vlan0 84.245.29/24 link#5 UC 1 0 - 4 vlan0 84.245.29.1 00:30:88:16:ac:fd UHLc 1 0 - 4 vlan0 127/8 127.0.0.1 UGRS 0 0 33144 8 lo0 127.0.0.1 127.0.0.1 UH 2 29313 33144 4 lo0 192.168.1/24 link#2 UC 1 0 - 4 em1 192.168.1.2 00:25:90:33:12:65 UHLc 0 16 - 4 lo0 224/4 127.0.0.1 URS 0 0 33144 8 lo0 # netstat -T1 -nrfinet Internet: Destination Gateway Flags Refs Use Mtu Prio Iface default 10.10.12.1 UGS 0 0 - 8 vlan1 10.0.52/24 link#15 UC 0 0 - 4 vlan52 10.10.12/22 link#16 UC 1 0 - 4 vlan1 10.10.12.1 link#16 UHLc 1 0 - 4 vlan1 Forgive me for removing the "Routing tables" line from the netstat output. Only after killing all dhclients and re-running dhclient vlan0, I get my internet connectivity back. Regards, Rogier
