lan/internet with Proxmox and containers. v4

[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...

 

[Mr.Holmes]

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"):

cat /etc/network/interfaces
ifconfig -a
grep "" /etc/pve/lxc/*

Kind regards

Mr.Holmes

 

[stephane_c]

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]

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

echo 1 > /proc/sys/net/ipv4/ip_forward

in addition

Kind regards

Mr.Holmes