[NTLUG:Discuss] Is it a right routing table?

David Stanaway david at stanaway.net
Thu May 1 07:29:57 CDT 2008


m m wrote:
> All:
>  
> Since I upgrade to Fedora 7. My internal network is become slow --- even slower than dial-up phone connection. 
> I wonder if the problem of routing
>  
> eth0 connection to cable modem, set as dhcp to get ip from modem.
> eth1 assigned an ip as 192.168.1.1, and is a gateway for all intranet computers to internet. 
>  
>   
Kernel IP routing tableDestination   Gateway      Genmask           Flags Metric Ref Use Iface

66.25.19.15 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
 66.25.19.15 66.25.19.15 255.255.255.255 UGH 0 0 0 eth0
 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
 66.25.0.0 0.0.0.0 255.255.240.0 U 0 0 0 eth0
 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 eth0
0.0.0.0 66.25.0.1 0.0.0.0 UG 0 0 0 eth0

That looks pretty messed up.

you have a default route via gateway 0.0.0.0 and some unnecessary  
routes for 66.25.19.15



Here is mine - with a similar setup as yours.
I have an additional network route for an internal subnet 10.0.70.0

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt 
Iface
10.0.40.0       0.0.0.0         255.255.255.0   U         0 0          0 
eth1
10.0.70.0       10.0.40.2       255.255.255.0   UG        0 0          0 
eth1
73.141.164.0    0.0.0.0         255.255.248.0   U         0 0          0 
eth0
0.0.0.0         73.141.164.1    0.0.0.0         UG        0 0          0 
eth0


You should have a

>  
> if not corrcet, can anyone show the correct one?
>  
> Thanks.
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