Hi again all,

After completely rebuilding my SecurePlatform FP3 and rulebase to fix my
authentication problems (it DID fix them by the way) I have just gone to
test traffic directly passing through the firewall and it appears to not be
working if there is a NAT involved.

For web browsing I access a proxy server on my DMZ without NAT and it
accesses the Internet without a NAT.  This works fine.  But when I try FTP
or NNTP to a host directly I see the entry in the log accepting the
connection, but the applications come back saying connection failed.  Just
like Mayooran I see the correct TX address in the log as well (my two
seperate internal networks are both hiding behind the firewalls external
address) but nothing further. Strangely, a traceroute through the firewall
works as it should...

I am fairly sure I have this setup exactly as I did in FP2 and it worked
fine there so is there something extra in FP3 that I need to do?  I would be
sooo happy to get everything to work on this platform at one time...........

Routes are correct including default route on the firewall (otherwise the
web proxy wouldn't work either) and antispoofing is setup correctly with the
groups of networks on each interface assigned to that interface and the
external interface set to "external".  The access list on the external
router is not to blame either as I have tested with it removed.

Does anyone have any ideas of other things I can check?  It seems to be a
most peculiar problem.

thanks in advance,

Damien

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