Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!rpi!batcomputer!hurf From: hurf@batcomputer.tn.cornell.edu (Hurf Sheldon) Newsgroups: comp.unix.ultrix Subject: Re: DECnet and TCP/IP between Ultrices Message-ID: <9085@batcomputer.tn.cornell.edu> Date: 18 Oct 89 17:46:00 GMT References: <880@uakari.primate.wisc.edu> <2774@decuac.DEC.COM> Reply-To: hurf@tcgould.tn.cornell.edu (Hurf Sheldon) Organization: Cornell Theory Center, Cornell University, Ithaca NY Lines: 33 In article <2774@decuac.DEC.COM> avolio@decuac.DEC.COM (Frederick M. Avolio) writes: > >Did you follow proper/normal procedures in starting things up after >installing DECnet? You might want to post/mail things like >how things are started up in your rc.local, etc. We have tons of >machines who do both tcp/ip and decnet and have no problems. Course, >you're 8200's code is a bit out of date... > >Make sure that decnet is started before tcp/ip in your rc.local. Does >telnet, rcp, tlogin, et al. work in either direction? How about >removing the arp info from both sides on each other and trying. How >about explicitly turning headers off of both. What isn't made clear here is that Decnet aliases the hardware ethernet address of your interface so if you 'arp -a' from your tcpip system you should see what looks like a bogus hardware address for the system running Ultrix-Decnet. -more like 'aa:0:4:0:4:dc' instead of '8:0:2b:7:64:de'. The 'aa' is a tipoff as all DEC systems start with 8:0:2b - if you see the real hardware address do an 'arp -d targetname' to get the decnet aliased address in the arp table. (by deleting the earlier one) In your /etc/rc.local start up decnet and sleep or do something else for a few seconds before starting 'ifconfig' so ifconfig picks up the aliased address. (Why is this, Fred? - not complaining a bit - just curious - the Ultrix Decnet is so nice to have) hurf -- Hurf Sheldon Network: hurf@ionvax.tn.cornell.edu Lab of Plasma Studies Bitnet: hurf@CRNLION 369 Upson Hall, Cornell University, Ithaca, N.Y. 14853 ph:607 255 7267 I got a job in science; I bought a Porsche; Now, everyone takes me seriously.