[CentOS] Problem deleting an active route

Fri Sep 22 14:41:24 UTC 2006
Dale <lists at ehome.net>

Hello,

Thanks for the reply, I have pasted my complete routing table below.

Email Lists wrote:
> -> -----Original Message-----
> -> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
> -> Behalf Of Dale
> -> Sent: Friday, September 22, 2006 12:01 AM
> -> To: CentOS mailing list
> -> Subject: Re: [CentOS] Problem deleting an active route
> -> 
> -> Hello,
> -> 
> -> Distro is a standard CentOS 4.4. Nothing unusual is installed or is
> -> running on this box as it was just setup a couple of weeks ago.
> -> 
> -> As root, I type:
> ->     ./route del -net 169.254.0.0
> -> 
> -> which returns an error of:
> -> 
> -> SIOCDELRT: Invalid argument
> -> 
> -> This route shows up in Webmin as well as when I type: ./route
> -> 
> -> This is not configured as a network interface anyplace I can see. eth0
> -> has a legitimate, public IP assigned to it
> -> 
> -> Dale
>
> Im pretty sure if you want to delete a route that you need to use a more
> verbose syntax with netmask and gw and etc.
>
> When I do a route on one of my boxes it comes up
>
> [root at srv ~]# route
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 10.0.0.0        *               255.255.255.0   U     0      0        0 eth1
> 200.55.44.0     *               255.255.255.0   U     0      0        0 eth0
> 169.254.0.0     *               255.255.0.0     U     0      0        0 eth1
> default         br1.abbacomm.ne 0.0.0.0         UG    0      0        0 eth0
>
> eth0 is active and up. Eth1 is not active and not plugged into anything.
>   

Here is my complete route table:
 ./route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
69.13.211.0     *               255.255.255.192 U     0      0        0 eth0
169.254.0.0     *               255.255.0.0     U     0      0        0 eth0
default         69.13.211.1     0.0.0.0         UG    0      0        0 eth0

The big difference between mine and yours is that the 169.254.0.0 route 
is showing up on eth0 - which is the only port connected. I can get into 
the box, but the box can not get out to anyplace. I could be looking in 
the wrong place for the solution, I figured that this looks wrong to 
have this apparent self-assigned IP on my only active ethernet port.

> I show the route as well only because I have an inactive interface meaning
> it is not admin up and so there really is no route because the interface
> isn't talking to another external interface.
>
> There is no reason to delete it that I can think of.
>
> If it is not on your active interface, down the other one as long as you can
> get back in the machine and forget about it???
>   
This is my only active port. If I shut it down, the machine goes away.
> What does your routing table say?
>   
see above
> What does ifconfig say?
>   
./ifconfig
eth0      Link encap:Ethernet  HWaddr 00:30:48:89:09:EC
          inet addr:69.13.211.30  Bcast:69.13.211.63  Mask:255.255.255.192
          inet6 addr: fe80::230:48ff:fe89:9ec/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:301425 errors:0 dropped:0 overruns:0 frame:0
          TX packets:39974 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:21343464 (20.3 MiB)  TX bytes:8486082 (8.0 MiB)
          Base address:0x2000 Memory:c8200000-c8220000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2627 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2627 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3340381 (3.1 MiB)  TX bytes:3340381 (3.1 MiB)

>  - rh
>
> --
> Robert - Abba Communications
>    Computer & Internet Services
>  (509) 624-7159 - www.abbacomm.net
>   
Dale