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- Path: sparky!uunet!wupost!spool.mu.edu!agate!dog.ee.lbl.gov!network.ucsd.edu!mvb.saic.com!info-multinet
- From: John.Mann@cc.monash.edu.au (John Mann)
- Newsgroups: vmsnet.networks.tcp-ip.multinet
- Subject: Re: SLIP and bootp
- Message-ID: <01GSB7X7ZKOE8Y5GIJ@vaxc.cc.monash.edu.au>
- Date: 14 Dec 1992 16:11:35 +1100
- Organization: Info-Multinet<==>Vmsnet.Networks.Tcp-Ip.Multinet Gateway
- X-Gateway-Source-Info: Mailing List
- Lines: 41
-
- Alan, Ken
-
- > > Is there any reason BootP requests wouldn't be passed through a slip
- > > line? We have a PC acting as a router on the end of the slip line, and
- > > are having a hard time determining whether bootp won't work because the
- > > routing software (on the PC) isn't passing it through or whether the
- > > SLIP line won't take them for some reason.
-
- > The PC isn't, and shouldn't pass IP broadcast packets through.
-
- For a number of years we have used PCs running PCroute software and
- cisco routers to forward BootP request packets (but not over SLIP).
-
- Have you set a bootp forwarding address in the PC router configuration?
- From INSTALL.DOC :
- -------------
- Next the CONFIG program will ask you for the address to forward
- BOOTP packets to. This can be a directed broadcast (and directed
- broadcasts are not turned off on all routers connected to the
- destination net). If you have no diskless machines booting across
- the gateway, just leave this value 0.0.0.0.
- -------------
-
- In our case we set the forwarding address to 130.194.1.255 so that all
- hosts on our machine room subnet could see the request.
-
- The other half of the question is whether the BootP reply can find its
- way back to the requesting PC ...
-
- I can hightly recommend TCPDUMP (MultiNet and Unix versions) for
- debugging this stuff, e.g. for a full breakdown from a VMS machine that
- isn't the bootp server do something like
-
- $ multinet tcpdump/hex/eth/snap=400 udp port bootpc or port bootps
-
- John
- --
- John Mann
- Communications and Networking Group Net: John.Mann@cc.monash.edu.au
- Computer Centre, Monash University Tel: +61 3 565 4774
- Clayton, Victoria 3168, Australia Fax: +61 3 565 4746
-