Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!pasteur!ucbvax!CLASH.CISCO.COM!satz
From: satz@CLASH.CISCO.COM
Newsgroups: comp.protocols.tcp-ip
Subject: Re: ISN
Message-ID: <8803170505.AA07059@ucbvax.Berkeley.EDU>
Date: 17 Mar 88 01:16:16 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 9

>> In addition, it has implemented a TTL type
>> of field so that packets that loop around between REBs get
>> removed.  You can configure in each REB what the maximum TTL
>> should be and each outgoing packet gets assigned that number.
>> As the packet passes thru other REBs, the number is decremented.
>> When it hits zero, the packet is thrown away.

If it is acting as a router it should use the TTL field in the IP
header. It seems, from your message, that another field may be used
possibly from a REB-REB protocol.