Great Circle Associates Firewalls
(November 1996)
 

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Subject: Stateful Packet Filter
From: "seo" <sbng @ ncs . com . sg>
Date: Thu, 28 Nov 1996 12:01:43 +0800
To: <firewalls @ greatcircle . com>

Greetings,

I have installed a firewall-1(Enterprize version) on Sparc Solaris with two
external interface.  Both the external interface are connected to two
different router (with two lease line link) hook on the local ISP.  My
question is: If a packet leaves the firewall by one of the external
interface and comes back from another interface, would the statefulness of
Firewall-1 software block the incoming packets since it comes from a
different interface? Note: Packets can return from the other interface due
to the configuration of the routers. Any pointers/clues/advices is
appreciated.  Thanks.

Seo


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