my routing project continues

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Ok, my routing project is still underway, and so far things are working well.  Today I decided to add another twist, and so I’m now against a brick wall again! Hehe

 

Here is what im working with so far: (all netmasks /24)

Computer 1 (a redhat box, the router for my project, basically simulating “the internet” for my 2 smoothwalls)

Eth0 – 192.168.128.2

Eth1 – 172.16.0.254

Eth2 – 172.16.1.254

Eth3 – 172.16.2.254

Default gw 192.168.128.1

 

Computer 2 (a smoothwall that vpns to computer 3)

Eth0 – 10.22.192.1

Eth1 – 172.16.0.1

Default gw – 172.16.0.254

 

Computer 3 (the other smoothwall that vpns back to computer 2)

Eth0 – 10.6.192.1

Eth1 – 172.16.1.1

Default gw – 172.16.1.254

 

Basically, I changed my router computers configuration to include an ip on my local lan, with the intention of getting computer 2 and 3 access to the internet.  Computer 2 can communicate with computer 3 completely normally, and they have their VPN set up between them, and that’s working fine.  So I know that ip_forward is working on the router.  Computer 2 can ping 172.16.0.254, and 192.168.128.2, but not 192.168.128.1 (the default gateway for my local lan).  The router can access the internet normally, can ping, resolve any host, have been in ftp sessions grabbing files, etc.

 

Here is my routing table on the router:

 

Kernel IP routing table

Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface

192.168.128.0   0.0.0.0         255.255.255.0   U         0 0          0 eth0

172.16.2.0      0.0.0.0         255.255.255.0   U         0 0          0 eth3

172.16.0.0      0.0.0.0         255.255.255.0   U         0 0          0 eth1

172.16.1.0      0.0.0.0         255.255.255.0   U         0 0          0 eth2

169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth3

127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0 lo

0.0.0.0         192.168.128.1   0.0.0.0         UG        0 0          0 eth0

 

To my beginner eyes, everything looks fine, yet no routing to the local lans DGw (192.168.128.1) and out to the internet.  Can someone shed me some light here??

 

Thanks a lot,

jonathan

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