Firewalls: FW-1 syncronization

Firewalls
(February 1997)

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Subject:	FW-1 syncronization
From:	Jason Jarvis <jarvisj @ dial . pipex . com>
Date:	Tue, 18 Feb 1997 13:38:56 -0000
To:	"'firewalls @ GreatCircle . COM'" <firewalls @ greatcircle . com>

Hello to everyone,

With resillience offered by FW-1 ver 3.0Beta the firewalls use port 1(TCPMux) to syncronize things like connection information.

What happens is that firewall-a starts a connection with firewall-b by sending a TCP packet with SYN flag set and then firewall-b sends a TCP packet with the RST flag set and visa versa. They attempt to talk to each other but no connection is made.

Has anyone else experienced this problem ?

Has anyone else fixed this problem ?

TIA

JaS

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