[lxc-users] How to increase IP range for containers.

[Florian Klink]

You probably forgot to update your iptables masquerading rules?

What's your output of `iptables-save`?

Florian

Am 23.05.2014 11:50, schrieb Abhijit Taware:
> I am using lxc to create around 1000 containers.
> I could get IP allocated to first 254 containers and not after that.
> I changed IP mask of 'lxcbr0' and made appropriate changes in
> /etc/default/lxc-net
> 
> USE_LXC_BRIDGE="true"
> LXC_BRIDGE="lxcbr0"
> LXC_ADDR="10.0.3.1"
> LXC_NETMASK="255.255.0.0"
> LXC_NETWORK="10.0.3.0/16 <http://10.0.3.0/16>"
> LXC_DHCP_RANGE="10.0.3.2,10.0.255.254"
> LXC_DHCP_MAX="65000"
> 
> 
> 
> Now I am not able to ping outside world from inside container, which was
> possible with "255.255.255.0" netmask.
> Can somebody help me with this.
> Note : I can get all my containers the IP address with new netmask.
> Here is my 'route -n ' o/p on host.
> 
> root at avatar:~# route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 0.0.0.0         192.168.100.1   0.0.0.0         UG    0      0        0 eth0
> 10.0.0.0        0.0.0.0         255.255.0.0     U     0      0        0
> lxcbr0
> 192.168.100.0   0.0.0.0         255.255.255.0   U     1      0        0 eth0
> 192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0
> virbr0
> 
> 
> The o/p inside container is -
> 
> root at avatar:~# route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 0.0.0.0         192.168.100.1   0.0.0.0         UG    0      0        0 eth0
> 10.0.0.0        0.0.0.0         255.255.0.0     U     0      0        0
> lxcbr0
> 192.168.100.0   0.0.0.0         255.255.255.0   U     1      0        0 eth0
> 192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0
> virbr0
> 
> 
> 
> Regards,
> Abhijit.
> 
> 
> 
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