re: 2 or more MacIP Servers is one zone?
"Ben (B.T.) Schmidt" <bschmidt@bnr.ca> Mon, 26 April 1993 22:21 UTC
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From: "Ben (B.T.) Schmidt" <bschmidt@bnr.ca>
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Message-Id: <"10362 Mon Apr 26 17:48:38 1993"@bnr.ca>
To: strick@asc.slb.com
Cc: "Alex (A.D.) Brown" <alex@bnr.ca>, apple-ip@cayman.com
Subject: re: 2 or more MacIP Servers is one zone?
Return-Receipt-To: bschmidt@bnr.ca
In message " 2 or more MacIP Servers is one zone?", 'strick@asc.slb.com' writes: > If I have two MacIP servers in the same zone, what rules determine > which one servers me each time I connect to the net and request an > address via 'Server' MacTCP? I'd love to do this for fault-tolerance, but both my vendor of MacIP gateways (cisco) and Tom Evan's 16/March/1992 version of "Network Area Internet Draft, MacIP - IP Transport over AppleTalk", warn that this is highly implementation- dependent, and that this path invariably leads to the "Dark Side". From section 4.8, Gateway NBP Proxy ARP, of the above doc: This results in the restriction that with MacIP-1 there must never be multiple MacIP gateways in the one zone configured with different MacIP Ranges, as they will defeat registration attempts by MacIP hosts that have been assigned addresses by the other gateway. Then again, [no t?]wo MacIP gateways [can?] can't be configured with the same MacIP range as normal IP routing (Routing case) and Proxy ARP (Forwarding case) would fail. Therefore there can't be more than one MacIP gateway in any one zone. This is the "Multiple Gateways in the One Zone" problems, and will be addressed later. Section 5.1, Multiple Gateways in One zone, then goes on to describe various "MGOZ-Hacks", none of which my vendor will so far own up to. :) So I'm (unnecessarily?) playing it safe for now with only one MacIP Gateway/zone. rgds, ben <bschmidt@bnr.ca> PS. Are my attempts at correcting a few typo's in section 4.8, as shown in the square brackets above, correct?
- 2 or more MacIP Servers is one zone? Don W Strickland, Schlumberger, Austin
- re: 2 or more MacIP Servers is one zone? Ben (B.T.) Schmidt
- re: 2 or more MacIP Servers is one zone? Tom Evans