Path: utzoo!utgpu!watserv1!watmath!att!pacbell!pacbell.com!ucsd!usc!elroy.jpl.nasa.gov!ames!dftsrv!chris From: chris@asylum.gsfc.nasa.gov (Chris Shenton) Newsgroups: comp.sys.apollo Subject: TCP routing from ring through node to ether on SR10.2? Message-ID: Date: 30 Aug 90 21:06:05 GMT Sender: news@dftsrv.gsfc.nasa.gov Organization: NASA Goddard Space Flight Center; Greenbelt, MD Lines: 29 I've got 4 SR10.2 machines on a ring, addresses 128.183.30.1, 2, 3, 4. I'd like to route through # .30.1 and out via its ether, address .10.55. I wasn't able to get it running under 9.7 and haven't been able to get it to work under 10.2. The gateway node gets to the rest of the ether world as well as the nodes on the ring. The ring nodes can telnet to the ring (.30.1) and ether (.10.155) side of the gate, but can't get past that to anywhere useful. What the solution, subnets? I'm using gateway masks: /etc/ifconfig dr0 128.183.30.1 netmask 255.255.255.0 /etc/ifconfig eth0 128.183.10.155 netmask 255.255.0.0 broadcast 0 and the other ring nodes are likewise masked 255.255.255.0 If I mask the ether side also 255.255.255.0 then the rest of the ethernet people yell at me about bogus broadcasts. The default route on the ring nodes is to the ring address of the gateway (.30.1). Some networkers here have mentioned Proxy ARP, but I'm not sure what it is, or how to do it. I can't be the only one using this ring/ether gateway configuration... How did you solve it? TIA! -- ____________________________________________________________________________ INET: chris@asylum.gsfc.nasa.gov (128.183.10.155) NASA/GSFC: Code 735 UUCP: ...!uunet!asylum.gsfc.nasa.gov!chris Greenbelt, MD 20771 SPAN: PITCH::CHRIS Fax: 301-286-9214 Phone: 301-286-6093