Comment 41 for bug 123773

Jonathan Stewart (reaper-fudo) wrote :

Update: I have found the source of my problem.

I had a custom script (related to dynamic DNS) in /etc/network/if-up.d/

The script was failing, and as a result, the DCHP aquired address was not getting assigned to the interface. It appears that if any of the if-up.d scripts fail, this will interrupt the correct operation of DCHP.

Additionally, i still get the error "SIOCSIFFLAGS: Cannot assign requested address". I do not know why... this indicates some kind of failure, but all IP configuration is completed as normal. I have DCHP on eth0, and a static IP addr on eth0:0.

I apologize for the noise, as it now seems my trouble report is not related to the problems described by other contributors.