[CentOS] Centos6.4 routing problem

[m.roth at 5-cent.us]

Johan Vermeulen wrote:
> dear All,
>
> I'm facing this routing problem, the setup is actualy part of ltsp, but
> I think this problem is Centos-specific.
>
> The server is a Dell Poweredge R210. The install is standard 6.4, updated.
>
> I have one nic facing the public internet:
>
First, we always have BOOTPROTO set - in your case, assuming you're
getting em1's IP from DHCP, you should have that; in the case of em2, it's
BOOTPROTO=static. As it is, I'd think (without testing) that em1 is trying
to present a reserved IP to the 'Net, which is a no-no.

> vi /etc/sysconfig/network-scripts/ifcfg-em1
>
> DEVICE=em1
> BOOTPROTO=none
> HWADDR=d4:ae:52:c1:28:2b
> NM_CONTROLLED=no
> ONBOOT=yes
> TYPE=Ethernet
> UUID="cdfe1d58-c56c-47fc-8a93-5df2e168d176"
> IPV6INIT=no
> USERCTL=no
> DNS2=195.238.2.22
> DNS1=192.168.66.1
> IPADDR=192.168.66.5
> NETMASK=255.255.255.128
> GATEWAY=192.168.66.1
>
> and one nic serving the lan and dhpcd.
>
> vi /etc/sysconfig/network-scripts/ifcfg-em2
>
> DEVICE=em2
> BOOTPROTO=none
> HWADDR=d4:ae:52:c1:28:2c
> NM_CONTROLLED=no
> ONBOOT=yes
> TYPE=Ethernet
> UUID="e72a17b6-fb5f-43f0-9136-fa4d92b542ae"
> IPADDR=192.168.70.129
> NETMASK=255.255.255.128
> IPV6INIT=no
> USERCTL=no
<snip>
Secondly, what does route show?

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