Path: utzoo!utgpu!watserv1!watmath!att!pacbell!pacbell.com!mips!apple!usc!wuarchive!uunet!tron!kerr From: kerr@tron.UUCP (Dave Kerr) Newsgroups: comp.sys.apollo Subject: Re: TCP routing from ring through node to ether on SR10.2? Message-ID: <639@tron.UUCP> Date: 2 Sep 90 13:00:37 GMT References: Reply-To: kerr@tron.bwi.wec.com (Dave Kerr) Organization: Westinghouse Electric Corporation Lines: 41 In article <9008311845.AA20019@pan.ssec.honeywell.com> thompson@PAN.SSEC.HONEYWELL.COM (John Thompson) writes: > >> 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 Make sure that the other hosts on your ethernet are also using subnets. Also, apollo's default to the broadcast addresss with the host part all 1's. In this case it would default to 128.183.10.255 for the eth0 side and 128.183.30.255 for the dr0 side and As far as I can tell, this is the correct form of the broadcast address. If you have Sun's on your ethernet, they default to a broadcast address with the host part equal to 0's. This will result in the gateway's not picking up each other's routing tables, and you'll have to change the broadcast on one or the other gateways. Also are aware of the routed patch for 10.2? Dave -- Dave Kerr (301) 765-4453 (WIN)765-4453 tron::kerr Internal WEC vax mail kerr@tron.bwi.wec.com from an Internet site kerr@tron.UUCP from a smart uucp mailer