Re: Problem with shared-network

Posted by Simon Hobson on
URL: http://isc-dhcp-users.193.s1.nabble.com/Problem-with-shared-network-tp145p150.html


On 4 Jun 2015, at 17:16, [hidden email] wrote:

> I have a Debian 7.0 running isc-dhcp-server 4.2.2.
>
> My server has a single NIC, and using iproute, I've added additional
> addresses (some lines snipped for brevity):
>
> eth0      Link encap:Ethernet  HWaddr 00:50:56:XX:XX:XX
>          inet addr:192.168.220.111  Bcast:192.168.220.255
> Mask:255.255.255.0
>
> eth0:1    Link encap:Ethernet  HWaddr 00:50:56:XX:XX:XX
>          inet addr:10.111.111.1  Bcast:10.255.255.255  Mask:255.255.255.0

Try ditching the alias interface and just add the address to the main interface, so you'd end up with :
eth0      Link encap:Ethernet  HWaddr 00:50:56:XX:XX:XX
         inet addr:192.168.220.111  Bcast:192.168.220.255 Mask:255.255.255.0
         inet addr:10.111.111.1  Bcast:10.255.255.255  Mask:255.255.255.0

That can be done with "ip addr add 10.111.111.1/24 dev eth0", and it can be automated by putting it in /etc/network/interfaces as a post-up line :
  post-ip ip addr add 10.111.111.1/24 dev eth0

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