Sounds like your routing table is getting polluted with bad RIP updates.
Doubt it’s coming from the printers themselves. Not sure how you’d track
that down. Maybe if you put a PC running Wireshark on the same LAN you
could find the source of the bogus updates.

On Sat, Oct 10, 2020 at 13:37 Craig Lalley <
[log in to unmask]> wrote:

> Yes, I have seen this before.  I suppose you will probably want to know
> how I resolved it.I don't remember...  but.
> Network Redirects come to mind.   Are they getting network redirects at
> the console?  Do they have the correct gateway in NMMGR?   Have you looked
> at the buffers?  NETTOOL.NET --> RESOURCE --> DISPLAY?
> Of course what does LINKCONTROL @,A show?
>
> Finally look at the Name Resolution.
>
> I know that probably doesn't help.  It's all I can think of right now.
>
> -Craig
>
>
>     On Saturday, October 10, 2020, 11:25:33 AM PDT, Gilles Schipper <
> [log in to unmask]> wrote:
>
>  External Email
>
> Has anyone seen the following situation:
>
> All of sudden, 2 HP3000's (running MPE/iX 6.5) are unable to accept VT
> sessions from terminals on same network.
>
> (Network administrators unable to point to any network configuration or
> equipment issues that could explain the problem.
>
> Further investigation show that one or two ip's associated with PRINTERS
> (usually 1, but sometimes 2) have appeared in the "GATELIST" command
> within NETTOOLS.NET.SYS (along with the ip address of the router).
>
> It seems that inability for network terminals to log on to either system
> is ALWAYS due to this bizarre situation that I've never seen before.
>
> Currently, the solution is to run a job every 5 minutes or so that
> issues a NETCONTROL NET=LAN; UPDATE=ALL, which results in ONLY the
> correct router ip address in the GATELIST, and after which everything is
> okay.
>
> Has anyone seen this before?
>
> And how to fix the problem permanently without requiring the running of
> the UPDATE job?
>
> TIA,
>
> Gilles
>
> --
> -----------------------------------------------------
> Gilles Schipper
> GSA Inc.
> HP System Administration Specialists
> PO Box 77566 RPO Sheppard Plaza
> Toronto ON M3H 6A7 Canada
> Tel: 416.702.7900
> email:  [log in to unmask]
> -----------------------------------------------------
>
>
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