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From: mankin@GATEWAY.MITRE.ORG
Newsgroups: comp.protocols.tcp-ip
Subject: (none)
Message-ID: <8709141556.AA00477@mercury.mitre.org>
Date: Mon, 14-Sep-87 11:56:33 EDT
Article-I.D.: mercury.8709141556.AA00477
Posted: Mon Sep 14 11:56:33 1987
Date-Received: Tue, 15-Sep-87 06:17:05 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 13

Z. Wang asked what happens to a source route option in a 4.2
gateway.

It depends what you mean by a 4.2 gateway.  The original Berkeley 
release of 4.2 has a typo in the code in ip_stripoptions (a bcopy to  
m instead of mopt--easy to see) which crashes the machine when an IP
packet with *any* option is forwarded.  The Ultrix version of 4.2
does not have this bug.

If this bug is fixed, the updated option goes out on the forwarded
packet.

		Allison