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- From: terry@cs.weber.edu (A Wizard of Earth C)
- Subject: Re: 386BSD Routing?
- Message-ID: <1992Sep16.042834.11972@fcom.cc.utah.edu>
- Keywords: routing, 386bsd
- Sender: news@fcom.cc.utah.edu
- Organization: Weber State University (Ogden, UT)
- References: <6104@pdxgate.UUCP>
- Date: Wed, 16 Sep 92 04:28:34 GMT
- Lines: 96
-
- In article <6104@pdxgate.UUCP> brians@rigel.cs.pdx.edu (Brian Smith) writes:
- >I have 386bsd running just wonderfully except for one simple problem:
- >routing isn't happening. I have a Western Digital ethernet card and a
- >SLIP connection working just fine. The problem is that packets aren't
- >being routed between the two interfaces. I didn't set the NOROUTING
- >option in the kernel build, so I am at a loss. Is the functionality
- >expected to work? I really do believe that I have the routing tables
- >primed correctly. RIP should take care of the rest. Routed is started
- >with the -g option, so that routing is propagated via the RIP protocol.
- >
- > ifconfig we0 192.203.133.4
- > ifconfig sl0 192.203.133.3 137.39.73.3
- > route add default 137.39.73.3
- >
- >The problem is that 192.203.133.2 can't ping 192.203.133.3, nor can
- >it ping 137.39.73.3.
- >
- >This is fairly critical, so if anyone can help me with this, I'd *REALLY*
- >appreciate it.
-
- Your default route should be your wire, unless the rest of the world is on
- the other side of your slip link. There should be a route to your slip
- host as well, and your "192.203.133.3" should be the designated route to
- "137.39.73.3" on the main gateway host on the "192.203.133" net.
-
-
- ,---. ,--------.
- || | |,------.|
- || | ||B ||
- || | ,--------. || ||
- | | |,------.| |`------'|
- | | || A || `--------'
- ,-----------. | | || || ,------------------.
- | Router | | | |`------'| | ----- |
- | Z | | | `--------' `------------------'
- `-----------' `---' ----------- -------------
-
- ---- IP 1 ---> <---------- IP 2 ----> <--- SLIP --->
-
-
- B:
- ifconfig sl0 inet B_address A_address <broadcast> <netmask>
- route add default A_address
-
- A:
- ifconfig sl0 inet A_address B_address <broadcast> <netmask>
- route add <SLIP wire name> A_address #optional: all SLIP subnet off A
- route add default Z_address
-
- Z:
- route add <SLIP wire name/SLIP host number> A_address
- route add default <upper level router>
-
-
- Basically, the ability of an host on net "IP 1" to route to hosts on the
- SLIP net is a function of their routing packets to host A, which is the
- designated "keeper of the SLIP net".
-
- The ability of any host on net "IP 2" to route to hosts on the SLIP net
- is a function of:
- 1) A routing record on the host trying to get to the SLIP
- host designating A as the gateway to the SLIP net.
-
- or
-
- 2) A default route record designating the router Z as the
- default route for packets not on the local net and a
- routing record on the router designating A as the gateway
- to the SLIP net.
-
- If A is to function as a gateway to multiple SLIP hosts, either an individual
- routing record needs to be established designating A as the gateway for each
- host, or a unique subnet number must be assigned for the SLIP net, and A will
- get ALL packets to hosts on the SLIP net. This may require rebuilding the
- kernel on A with "option GATEWAY". Run "config", then do a "make depend",
- then do a "make".
-
- Generally, if "A" has a routing record to "B", and some upper level router
- can designate "A" as the gateway to "B", then rebuilding the kernel is not
- necessary. Your mileage may vary.
-
- See also: "man route", "man ifconfig", "man slip", and consider getting
- "gated" from gatekeeper.dec.com or some other archive.
-
-
- Terry Lambert
- terry_lambert@gateway.novell.com
- terry@icarus.weber.edu
- ---
- Any opinions in this posting are my own and not those of my present
- or previous employers.
- --
- -------------------------------------------------------------------------------
- "I have an 8 user poetic license" - me
- Get the 386bsd FAQ from agate.berkeley.edu:/pub/386BSD/386bsd-0.1/unofficial
- -------------------------------------------------------------------------------
-