[FW-1] Routing problem with an classe B subnet

[noel.breton@FW1-NOSPAMCNAV.FR]

Hi all,

I have a SecurePlatform AI box with 3 interfaces as follow :

eth0 :      192.168.16.1/255.255.255.0    (with the default gateway)
eth1:       192.168.17.1/255.255.255.0
eth2:       192.168.8.1/255.255.248.0     (Classe B subnetted)

When I try from the host 192.168.17.18 (behind the eth1 interface) to join
the host 192.168.14.12 (behind the eth2 interface), I have an anti-spoof
log on the eth0 interface. As if the packet was routed to the default
gateway instead to go through the eth2 interface. As if SecurePlatform
didn't understand the mask of the eth2 interface.

Has SecurePlatform AI some problems with subnet ?
Is there an error in my reasonning ?


Thanks.


Noël BRETON

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