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- From: herbert@lagadia.gnosys.de (Herbert Niederle)
- Newsgroups: comp.protocols.tcp-ip
- Subject: Re: ProxyArp on Sun
- Message-ID: <1992Dec22.153432.6510@gnosys.de>
- Date: 22 Dec 92 15:34:32 GMT
- References: <1h55hvINNjdb@emory.mathcs.emory.edu>
- Sender: usenet@gnosys.de
- Reply-To: herbert@lagadia.gnosys.de
- Organization: GnoSys Software
- Lines: 36
-
- In article 1h55hvINNjdb@emory.mathcs.emory.edu, km@mathcs.emory.edu (Ken Mandelberg) writes:
- >Is there a way to get a Sun that is acting a router between two ethernet
- >segments (subnets) to proxyarp on one side for devices on the other?
- >
- >I know how to do this if the routing is between an ethernet and something
- >else (say a point to point to link). "arp -s REMOTEIP ROUTERETHER public"
- >will do this. The problem is that this doesn't work with two ethernets
- >since there is only one arp table for both interfaces.
- >
- You avoid the problem, if you do the "arp -s" not on the router itself, but
- on any other system on each ethernet. The router (Sun) itself has to use its
- IP-Routing-Tables.
-
- For example : ----------A----B----C--- Net 1
- R
- ----------E----F----G--- Net 2
- if you do
-
- B# route add <Net 2> B 0
- B# arp -s G R-ether pub
-
- G# route add <Net 1> G 0
- G# arp -s B R-ether pub
- it should work.
-
- Remember, that if R is a Sun you have on both sides the same "R-ether".
-
- Hope that helps,
-
- Herbert
-
- ---
- +-------------------------------------------------------+
- |Herbert Niederle Tel: (+49) 89 3083746 |
- |GnoSys Software Fax: (+49) 2156 41485 |
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