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- From: bob@MorningStar.Com (Bob Sutterfield)
- Newsgroups: comp.protocols.ppp
- Subject: Re: PPP between different networks? (i.e., 183... & 142...)
- Message-ID: <BOB.92Nov23150052@volitans.MorningStar.Com>
- Date: 23 Nov 92 20:00:59 GMT
- Article-I.D.: volitans.BOB.92Nov23150052
- References: <1992Nov9.050242.16958@hawkmoon.mn.org>
- <BOB.92Nov10094722@volitans.MorningStar.Com> <1992Nov19.151251@bbn.com>
- Sender: news@MorningStar.Com
- Organization: Morning Star Technologies
- Lines: 33
- In-Reply-To: adiwan@bbn.com's message of 19 Nov 92 20: 12:51 GMT
- Nntp-Posting-Host: volitans.morningstar.com
-
- In article <1992Nov19.151251@bbn.com> adiwan@bbn.com (Arif Diwan) writes:
- In article <1992Nov9.050242.16958@hawkmoon.mn.org> det@hawkmoon.mn.org (Derek Terveer) writes:
- Can I connect one machine on one network, say 183.100.1.1 to
- another machine on another network, say 142.49.1.18; or must
- both machines be one the same network?
-
- Each ... IP interface can use ... some [address] you've pulled
- out of thin air.
-
- Except when you are routing packets to one via the other from the
- Internet and vice versa. You need to get a NIC registered IP
- address.
-
- Of course. I was trying to make the point that the IP addresses of
- two different interfaces on the same machine (at least machines
- running BSD-like UNIX variants) are totally unrelated.
-
- The netmask is incidental and ignored.
-
- Also, if these point to point links are hooking up networks which
- are subnetted then you will need proper masks for routing packets;
- correct?
-
- No, the original question mentioned connecting different network
- numbers, and subnet masks are a private matter within each Autonomous
- System. That's the whole point of subnetting.
-
- For example, I suspect that bbn.com probably uses 8-bit subnets within
- 128.89, but (a) I can't easily tell, (b) it would be too much for all
- the routers in the world to keep track of all the subnet masks inside
- all the world's ASs, and (c) I don't care. The rest of the world
- shuffles all packets for 128.89.0.0 toward your NEARnet gateway, and
- we let your internal routers figure it out from there.
-