[CentOS] Centos6.4 routing problem

[Bonnie Mtengwa]

Sent from my HTC

----- Reply message -----
From: "Johan Vermeulen" <jvermeulen at cawdekempen.be>
To: "CentOS mailing list" <centos at centos.org>
Subject: [CentOS] Centos6.4 routing problem
Date: Tue, Jun 4, 2013 16:13


hello Mark,

thanks for the help.
Op 04-06-13 15:56, m.roth at 5-cent.us schreef:
> 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.

both ifcfg's now have BOOTPROTO=static
and I restarted network and dhcpd.
>
>> 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?
>
>         mark
>
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[root at centoshofkwartier ~]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref Use Iface
192.168.70.128  *               255.255.255.128 U     0 0        0 em2
192.168.66.0    *               255.255.255.128 U     0 0        0 em1
link-local      *               255.255.0.0     U     1002 0        0 em1
link-local      *               255.255.0.0     U     1003 0        0 em2
default         192.168.66.1    0.0.0.0         UG    0 0        0 em1

greetings, J.


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