Dear List, I'm using some post-up commands for additinal ip routes within /etc/network/interfaces. For many years and several debian versions this was fine. Like for example with (sanetized version): iface eth0 inet6 static address aaaa:bbbb:10:60:11::4 netmask 80 gateway aaaa:bbbb:10:60:11::2 post-up ip -6 route add aaaa:bbbb:10:60:105::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 With trixie this does no longer work. It seems the ip address gets valid several seconds AFTER the post-up script gets run. The logs show some error: “Error: Invalid source address” Does anybody know the reason for this? regards hede Some more information. The following commands get run by ifup: ip addr flush dev eth0 mngtmpaddr ip link set dev eth0 up ip -6 addr add aaaa:bbbb:10:60:11::4/80 dev eth0 ip -6 route replace default via aaaa:bbbb:10:60:11::2 dev eth0 onlink ip -6 route add aaaa:bbbb:10:60:13::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 The following shows that it needs about 2 seconds for the address to get valid / the route gets applied only after two one-seconds sleeps:
root@system:~# ip addr flush dev eth0 mngtmpaddr && ip link set dev eth0 up && ip -6 addr add aaaa:bbbb:10:60:11::4/80 dev eth0 && ip -6 route replace default via aaaa:bbbb:10:60:11::2 dev eth0 onlink && echo iface is up; echo first: ; ip -6 route add aaaa:bbbb:10:60:13::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 ; sleep 1; echo second: ; ip -6 route add aaaa:bbbb:10:60:13::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 ; sleep 1; echo third: ; ip -6 route add aaaa:bbbb:10:60:13::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 ; sleep 1; echo forth: ; ip -6 route add aaaa:bbbb:10:60:13::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 ; sleep 1; echo fifth: ; ip -6 route add aaaa:bbbb:10:60:13::/80 dev eth0 src aaaa:bbbb:10:60:11::4 via aaaa:bbbb:10:60:11::3 ; iface is up first: Error: Invalid source address. second: Error: Invalid source address. third: forth: RTNETLINK answers: File exists fifth: RTNETLINK answers: File exists and btw: I do have my solution now, simply by running a postup-script some seconds after ifup finishes. But I'm still interested why this happens.
