Package: linux-image-3.16.0-4-amd64
Version: 3.16.36-1+deb8u2
After the upgrade to the new kernel version we've noticed that the default src
IP have changed from the primary interface eth0 to the IP set for the
subinterface eth0:1. This has caused problem with some of our services such as
bind that now uses the wrong IP for zone transfers which fails.
# ip route show
default via xxx.xxx.240.1 dev eth0
xxx.xxx.240.0/27 dev eth0 proto kernel scope link src xxx.xxx.240.11
/etc/network/interfaces:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet static
address xxx.xxx.240.9
netmask 255.255.255.224
gateway xxx.xxx.240.1
pre-up iptables-restore < /etc/iptables.rules
post-down iptables-save -c > /etc/iptables.rules
auto eth0:1
iface eth0:1 inet static
address xxx.xxx.240.11
netmask 255.255.255.224
The reason we suspect this is something in the kernel is because that's the
only package upgraded and the only change made to the system prior to the
problem appearing.
We are running Debian GNU/Linux 8.6, kernel 3.16.36-1+deb8u2
Martin Hellström
DGC Delta AB
Mäster Samuelsgatan 42
111 57 Stockholm
Sweden
Phone: +46 8 501 125 00
Cell: +46 70 485 26 01
www.deltait.se<http://www.deltait.se/>
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