[PVE-User] Problems with networking (routing) of a transfered container from pve3 to pve4

[Christian Blaich]

Hey,

 

got some problems with a second eth inside a container. The second interface
is not pingable.

my setup:

 

Server Pve3: 

Fresh installed Ovz Container Ubuntu 14.04, Template from
https://wiki.openvz.org/Download/template/precreated

2 Ip addresses, using the venet

 

Interfaces:

auto venet0

iface venet0 inet manual

        up ifconfig venet0 up

        up ifconfig venet0 127.0.0.2

        up route add default dev venet0

        down route del default dev venet0

        down ifconfig venet0 down

 

iface venet0 inet6 manual

        up route -A inet6 add default dev venet0

        down route -A inet6 del default dev venet0

 

auto venet0:0

iface venet0:0 inet static

        address xx.xx.xx.xx

        netmask 255.255.255.255

 

auto venet0:1

iface venet0:1 inet static

        address xx.xx.xx.xx

        netmask 255.255.255.255

 

Steps:

*         Backup via gui

*         Transfer archive to Server Pve4

*         Restore archive on Pve4

*         Setting up eth0 and eth1 with former ip addresses, mac and gateway
via gui

 

Server Pve4: 

eth0 is pingable, eth1 doesn't respond

Config in gui is here:
http://www.evernote.com/shard/s221/sh/187f760b-f865-4ef1-8dfb-8766e22ac907/c
6d99fa8e8b6111343c5c47c33da7069

 

Interfaces:

# Auto generated lo interface

auto lo

iface lo inet loopback

 

# Auto generated venet0 interface

auto venet0

iface venet0 inet manual

                up ifconfig venet0 up

               up ifconfig venet0 127.0.0.2

                up route add default dev venet0

              down route del default dev venet0

               down ifconfig venet0 down

 

iface venet0 inet6 manual

                up route -A inet6 add default dev venet0

               down route -A inet6 del default dev venet0

 

auto venet0:0

iface venet0:0 inet static

                address xx.xx.xx.xx

                netmask 255.255.255.255

 

auto eth0

iface eth0 inet static

        address xx.xx.xx.xx

        netmask 255.255.255.255

# --- BEGIN PVE ---

        post-up ip route add xx.xx.xx.254 dev eth0

        post-up ip route add default via xx.xx.xx.254 dev eth0

        pre-down ip route del default via xx.xx.xx.254 dev eth0

        pre-down ip route del xx.xx.xx.254 dev eth0

# --- END PVE ---

 

auto eth1

iface eth1 inet static

        address xx.xx.xx.xx

        netmask 255.255.255.255

 

When i switch the entry of the gateway in the gui, the other ip is reachable
but not the former one.

What can i do to run both ip addresses in the container?

 

A precreated container from the lxc sources works perfect with the 2 ips. I
guess it must be a routing problem in the container - there is no firewall
activated on the whole system.

 

chris