[28857] in North American Network Operators' Group
Re: IGPs and services?
daemon@ATHENA.MIT.EDU (Neil J. McRae)
Fri May 19 15:05:04 2000
From: "Neil J. McRae" <neil@domino.org>
Message-Id: <200005191853.TAA04291@genesis.DOMINO.ORG>
In-Reply-To: <010001bfc1bd$6543b8e0$2f2544ab@glock> from Stephen Sprunk at "May 19, 2000 01:01:03 pm"
To: ssprunk@cisco.com (Stephen Sprunk)
Date: Fri, 19 May 2000 19:53:37 +0100 (BST)
Cc: bross@netrail.net (Brandon Ross),
nanog@merit.edu (North American Noise and Off-topic Gripes)
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> This is actually very common in "off-brand" (ie. anything besides Linux,
> *BSD, and Solaris) IP stacks. The current shipping versions of many
> OSes do some very odd things: cache a static route upon performing
> PMTUD, cache static routes to one of multiple default gateways, refuse
> to honor gratuitous ARPs, refuse to time out ARP entries, cache ARP
> entries with mcast MACs, cache ICMP redirects classfully, etc.
>
> What's worse is these "caches" tend to be permanent, usually not even
> allowing manual overrides (other than a reboot).
>
Yah, BSDI added this to version 3 and I bought the source license just
so I could hack it out, it really broke things on a box running
any kind of routeing protocol.
Regards,
Neil.
