🚀 go-pugleaf

>From:	TRON::"uunet!spot.Colorado.EDU!cisco-forw" 18-AUG-1992 17:13:12.15
>To:	tcp-ip@nic.ddn.mil, cisco@spot.colorado.edu
>CC:	
>Subj:	Packet from Unknown Router
>
>We are getting a stream of this message on some Suns that were just upgraded 
>to SPARCs.  The IP address that appears is a valid address for a cisco router
>(secondary IP address on cisco port).  The Sun is at SunOS 4.1.2 and cisco is
>an AGS+ at version 8.3.  Network activity on the Sun seems to be unaffected.
>
>Aug 17 14:43:41 zztop syslog: packet from unknown router, 222.21.248.254
>Aug 17 14:50:11 zztop last message repeated 349 times
>
>Any ideas?
>
>__
>Best Wishes,
>
>Gurvinder Singh Ahluwalia      Internet:     guri@apogee.sps.mot.com
>Systems & Network Computing    IIN:          USMOT24T
>Motorola SPS                   Motorola DMS: RXDH10@email
>Austin, TX                     Voice:        (512) 891-3310
............................................................................
We've had the same symptom for a while but attributed it to our use of
secondary addresses.  On the same cable, we have three Cisco's with
consistent subnet addresses, except one of them has a primary address
in a different subnet than the other two.  Our Sun logging station is
addresses in the "common" subnet, so it complains about RIP updates it
receives that are sourced with the primary address in the other subnet.

         R1         R2         R3         Sun
Primary  Net.4.x    Net.4.x    Net.117.x  Net.4.x
Sec #1   Net.117.x  Net.117.x  Net.4.x
Sec #2   Net.204.x  Net.204.x  Net.204.x
Sec #n   ...

If the R3 situation weren't temporary, we'd just swap the first two above;
we expect this would silence the Sun.

Marty Adkins
Distributed Systems
Westinghouse Electronic Systems Group

U.S. Mail:                  	    Internet: Adkins@plaza.wec.com
  Westinghouse Electric Corp.       MTS400: ADKINS.M.J
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  Baltimore, Md. 21203		           @2=DIALCOM@1=US
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