*BSD News Article 43475


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From: jenkinsj@oils.ozy.dec.com (Jon Jenkins)
Newsgroups: comp.os.386bsd.questions
Subject: Re: Help with SLIP
Date: 13 Mar 1995 21:04:00 GMT
Organization: Digital Equipment Corporation
Lines: 99
Message-ID: <3k2c00$p6l@nntpd.lkg.dec.com>
References: <3isgai$rhv@nntpd.lkg.dec.com> <3jn3qr$ij2@bonnie.tcd-dresden.de>
NNTP-Posting-Host: oils.ozy.dec.com
X-Newsreader: TIN [version 1.2 PL2(HT3)]

J Wunsch (j@narcisa.sax.de) wrote:
: Jon Jenkins <jenkinsj@flotsm.ozy.dec.com> wrote:

: >1: slattch -c -h -s 57600 /dev/tty01
: >2: ifconfig sl1 inet wally mtu 1500 up

: ifconfig sl1 inet wally remotesite [netmask 0xblahblah]
:                         ^^^^^^^^^^
: this is important
: (just curious, why don'tya use sl0?)

This was in fact the problem. slattach does
not use sl-0 and sl-1 it uses sl-1 and sl-2!!!
so I was getting confused as to which 
sl0/1 unit to use for routing and ifnet
numbering.

After I realised this everything worked
just fine !!

Just out of interest I have the following
settings which work perfectly for all 
internet services attempted including 
ftp, rlogin, telnet, netscape, mail,
tracerout, ping etc:

------------------------------------------
start.slip script:

route -q flush
ifconfig sl0 delete
ifconfig sl1 delete
slattach -a -s 57600 -h /dev/ttyd1
ifconfig sl0 inet wally_20$1 mtu 256 compress up
route add default wally_20$1
netstat -r
netstat -i
ifconfig sl0

------------------------------------------
netstat -i produces:
Name  Mtu   Network     Address            Ipkts Ierrs    Opkts Oerrs  Coll
lp0*  1500  <Link>                             0     0        0     0     0
lo0   65532 <Link>                             0     0        0     0     0
lo0   65532 loop        localhost              0     0        0     0     0
ppp0* 1500  <Link>                             0     0        0     0     0
ppp1* 1500  <Link>                             0     0        0     0     0
sl0   256   <Link>                          2251     0     3183     0     0
sl0   256   16          wally_203           2251     0     3183     0     0
sl1*  552   <Link>                             0     0        0     0     0
wally%/root#

------------------------------------------
and netstat -r produces:
Routing tables

Internet:
Destination      Gateway            Flags     Refs     Use  Interface
default          wally_203          UGS         2     3251  sl0
localhost        localhost          UH          0        0  lo0
wally%/root#

------------------------------------------
and ifconfig sl0 produces:
sl0: flags=d011<UP,POINTOPOINT,LINK0,LINK2,MULTICAST> mtu 256
        inet 16.153.192.203 --> 0.0.0.0 netmask 0xff000000 
wally%/root#

------------------------------------------
stop.slip script is:

kill `ps ax | grep "[0-9] slattach " | awk '{print $1}'`
route -q flush
ifconfig sl0 delete

------------------------------------------
Hope this helps others.

: -- 
: cheers, J"org                      private:   joerg_wunsch@uriah.heep.sax.de
:                                    http://www.sax.de/~joerg/

: Never trust an operating system you don't have sources for. ;-)

--
----------------------------------------------------------------------
Name:        Dr Jon Jenkins
Location:    Digital Equipment Corp, NaC, 
             Burnett Place, Research Park, 
             Bond University, Gold Coast
             QLD, AUSTRALIA 4229
Phone:       61-75-75-0151
Fax:         61-75-75-0100
Internet:    jenkinsj@ozy.dec.com
Close Proximity: "HEY YOU !!!"

The opinions expressed above are entirely personal and do not
reflect the corporate policy of DEC or the opinions of DEC management.
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