Routing question

pll at lanminds.com pll at lanminds.com
Fri May 9 11:39:21 EDT 2003


Hi all,

I've got a system with 2 NICs in it on 2 separate subnets. 
(Yes Ben, both networks have active routers on them for gateways :)

My config files look like this:

   DEVICE=eth0			DEVICE=eth3 	       
   ONBOOT=yes			ONBOOT=yes 	       
   BOOTPROTO=none 		BOOTPROTO=none 	       
   IPADDR=10.241.35.18		NETWORK=10.241.37.0    
   NETMASK=255.255.255.0 	IPADDR=10.241.37.70    
   NETWORK=10.241.35.0   	NETMASK=255.255.255.0  
   BROADCAST=10.241.35.255	BROADCAST=10.241.37.255
   GATEWAY=10.241.35.1		GATEWAY=10.241.37.1    

With my config files like this, I get:

   # netstat -rn
   Kernel IP routing table
   Destination  Gateway     Genmask         Flags   MSS Window  irtt Iface
   10.241.35.0  0.0.0.0     255.255.255.0   U        40 0          0 eth0
   10.241.37.0  0.0.0.0     255.255.255.0   U        40 0          0 eth3
   127.0.0.0    0.0.0.0     255.0.0.0       U        40 0          0 lo
   0.0.0.0      10.241.35.1 0.0.0.0         UG       40 0          0 eth0

With this configuration, everything *should* route out eth3, however,
I can't seem to get this to work properly.  One NIC responds, but not
the other.  In this case, eth0 reponds to pings from off these subnets
(i.e. if I ping from 168.159.31.9), but not eth3.


If I add a second default route for the .37 subnet, like this:
 
    # netstat -rn
    Kernel IP routing table
    Destination  Gateway     Genmask         Flags   MSS Window  irtt Iface
    10.241.35.0  0.0.0.0     255.255.255.0   U        40 0          0 eth0
    10.241.37.0  0.0.0.0     255.255.255.0   U        40 0          0 eth3
    127.0.0.0    0.0.0.0     255.0.0.0       U        40 0          0 lo
    0.0.0.0      10.241.37.1 0.0.0.0         UG       40 0          0 eth3
    0.0.0.0      10.241.35.1 0.0.0.0         UG       40 0          0 eth0

I then get no response from either NIC.
Note, I am not trying to get this system to actually route, I just want to be able to get to either NIC from off those subnets.

Any idea what I'm missing?

Thanks,
-- 

Seeya,
Paul
--
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