The igmp reference is interesting. I'm not doing any dynamic routing. On this particular gateway, I'm still downloading the encap entries. There are no igmp or rip kernel modules loaded. It does have a simple iptables NAT setup. It's IPV4 only.
The kernel is: Linux kunk 3.12.6-reb-x64 #3 SMP Wed Jan 15 17:05:53 CST 2014 x86_64 GNU/Linux compiled with the stock debian .config just added the bsd pty support for axip. I needed the newer kernel for the onboard ethernet and haswell video.
I've seen the same issue with the stock kernels for a while, 3.2, 3.10 for example that's why I was thinking it might be a known issue.
I'm pretty sure it was happening before I started running the x64 kernel with i386 userland too.
Bob
"David Ranch amprgw@trinnet.net says:"
Hmmm... I've been running various EPEL kernel on Centos 6 (currently on 3.10.5) on an i5 / 4GB machine with a locally compiled version of the VE7FET AX.25 apps/libs/tools (64bit versions.. not i386) without any issues for a few years now. This is all running a TNC in KISS mode using the mkiss and netrom modules. Maybe you can install the 64bit versions of the AX25 stuff and have better luck?
I also see there are references of IGMP in there... are you using any multicast in your setup? Maybe RIP?
--David