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- Newsgroups: comp.unix.aux
- Path: sparky!uunet!stanford.edu!ames!nsisrv!jagubox!jim
- From: jim@jagubox.gsfc.nasa.gov (Jim Jagielski)
- Subject: Re: SLIP
- Message-ID: <918@jagubox.gsfc.nasa.gov>
- Keywords: SLIP
- Sender: usenet@nsisrv.gsfc.nasa.gov (Usenet)
- Nntp-Posting-Host: jagubox.gsfc.nasa.gov
- Reply-To: jim@jagubox.gsfc.nasa.gov (Jim Jagielski)
- Organization: NASA/Goddard Space Flight Center
- References: <1992Jul30.134934.1170@cbnewsk.cb.att.com>
- Date: Thu, 30 Jul 1992 14:50:56 GMT
- Lines: 63
-
- rob@cbnewsk.cb.att.com (rob) writes:
-
- >I am having a heck of a time getting SLIP to work.
- >My setup: A/UX 3.0 configured with bnet - MacIIci 8/160 - Telebit T3000
- >modem with hardware-handshake cable.
- >The problem: I want to use my Mac as a SLIP client to an HP9000/382
- >running HP/UX 8.0 and configured as a SLIP server. I can cu(1) and log
- >into the HP with no problem. I can start ppl(1) [<== The HP SLIP interface]
- >ok, and it tells me the protocol is started. I can then run slattconf(1) on
- >the Mac and it returns 'sl0' as expected. 'netstat -r' on the Mac indicates
- >that the routing tables are as they should be. 'netstat -Isl0 10' shows
- >that there are input and output packets flowing through 'sl0'.
-
- >BUT.....
- >If I try to do anything with the SLIP connection (i.e. - telnet, ftp,
- >ping) nothing happens! I can 'ping' my local system via its system name
- >as shown in /etc/hosts (rather than 'loop') and get results, but when
- >I try to ping the SLIP server I get no response.
-
- >Is there something obvious I can try to attempt to determine what's going on?
- >Since netstat indicated input packets are arriving it would be nice
- >if I could snoop at the packets to see their headers, but I don't see any
- >A/UX support for that. I fear that I may have something within A/UX
- >configured incorrectly such that the Mac does not recognize packets addressed
- >to it.
-
- >Any and all suggestions are welcome and will be tried. I will summarize
- >all responses for the net if there is interest. Thanks in advance.....
-
- Hmmm... well, Ron (@afsg) has ported the Berkeley Packet Filter (bpf)
- package over to A/UX 3.0, so if you install it, you can snoop and
- look at the packets (look for bpf on afsg.apple.com).
-
- Have you setup nameserver and routing correctly (running named, routed,
- using resolv.conf or a static route)? If this question causes you to
- go "Huh? What?" then I would guess that's it.
-
- You see (this little discussion is based on TCP/IP-Ethernet but should
- be valid for CSlip as well), to use networking your Mac must also be
- able to figure out what machine you mean by "foo.bar.blah". That's
- the nameservers job. You can have you Mac do that function completely
- or have it question real nameservers. The latter is mucho easier; all
- you need is a short little file called /etc/resolv.conf that says
- who those nameservers are. If you have the hosts in /etc/hosts, then
- your Mac should be able to figure out who they are as well.
-
- The other thing is that there must be some way for packets that you
- generate to go out into the real world... This is the job of a router
- or gateway. Again, you can tell A/UX which gateway to use ("route")
- or run the routed ("routed -q") to listen for who is the right
- router. Again, the later is easier; just run it from /etc/inittab.
- This also allows for outside packets to reach you.
-
- PS: If any of the above isn't valid for CSlip, then I never said it :)
- --
- ==============================================================================
- #include <std/disclaimer.h>
-
- Jim Jagielski NASA/GSFC, Code 734.4
- jim@jagubox.gsfc.nasa.gov Greenbelt, MD 20771
-
- "The great scallop... this tatty, scrofulous old rapist,
- is second in depravity only to the common clam."
-