lan/internet with Proxmox and containers. v4

SergeyM

New Member
Oct 22, 2015
3
0
1
Proxmox server can ping any resourse in the web, containers can ping only each other and proxmox server.
So i cannot connect them from any lan ip...
What should i do to get lan and internet workable at my containers?

i've tried to add some masquerade from some manuals - it didnt work...
 
Last edited:

Mr.Holmes

Member
Apr 5, 2014
281
2
16
Hello SergeyM,

Proxmox server can ping any resourse in the web, containers can ping only each other and proxmox server.
So i cannot connect them from any lan ip...
What should i do to get lan and internet workable at my containers?

i've tried to add some masquerade from some manuals - it didnt work...
Network from containers works usually without any problems.

If you post more details about your IP configuration it can be considered what in particular has to be improved.

To do so call the following on the command line (supposing you use Proxmox VE 4.0, otherwise it would be "openvz" instead of "lxc"):

Code:
cat /etc/network/interfaces
ifconfig -a
grep "" /etc/pve/lxc/*
Kind regards

Mr.Holmes
 

stephane_c

New Member
Sep 18, 2015
8
0
1
Hello,
If you have an internet sub-network, you must uncomment "net.ipv4.ip_forward=1" in /etc/sysctl.conf in proxmox.

Regards,
Stéphane
 

Mr.Holmes

Member
Apr 5, 2014
281
2
16
Hello,

If you have an internet sub-network, you must uncomment "net.ipv4.ip_forward=1" in /etc/sysctl.conf in proxmox.
Yes, indeed, Stéphane is right - in Proxmox VE 4.0 routing is deactivated by default (AFAIK in V3.4 is was active).

Note that the setting above has effect only after restart. In order to activate it immediately do

Code:
echo 1 > /proc/sys/net/ipv4/ip_forward
in addition

Kind regards

Mr.Holmes
 

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