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Date:      Tue, 13 Apr 1999 18:02:16 +0200
From:      Luke Roberts <luke@roberts.nl>
To:        freebsd-isdn@freebsd.org
Subject:   problems setting up i4b (for FreeBSD Router)
Message-ID:  <4.1.19990413180057.0095a810@pop.roberts.nl>

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Hi,

I want to install a FreeBSD 2.2.7 box in such a way that it acts as an ISDN
router to our internet provider. I want it to use NAT and maybe also
include a firewall. The machine has a TELES 16.3 ISDN (ISA) card and also a
standard NE2000 Network card. (The network card works).

So far I have setup i4b 0.71.00 and when the machine boots the kernel I see
the TELES 16.3 card with the correct i/o IRQ etc and not much later I see
all the devices 14b, i4pisppp, i4bctl, i4bipr, 14btel, 14brbch, i4btrc

I have made an isdn.rc file with the correct numbers to dial for our
provider and also used a pretty standard script (from the i4b manual) for
sppp for setting up the ppp connection to our provider.

I thought that after I'd got this setup I'd give NAT and the Firewall a go
to finish off the job. Unfortunatly I can't even get an outgoing connection
going. All I get when I try to setup a connection is a load of warnings like:

i4b-L3-i4b_decode_q931: cannot find call descriptor for cr 0x21, crflag =
0x1, msg = 0x7d, frame = 0x7d 0x8 0x3 0xe4 0x8 0x14 0x1 0x13

then I get more like:

i4b-L3-T303_tikjeout: SETUP not answered, cr=33
i4b-L3-next_l3state: FSM illegal state, state = ST_U) - Null, event =
EV_T303EXP - T303 timeout!

and finaly:

14b-L1-timer4_expired: state = F3 Deactivated


In /var/sys/messages I see the following:

isp0: lcp open (initial)
isp0: phase establish
isp0: lcp close (starting)
isp0: phase dead
isp0: lcp close (initial)

Has anybody got a clue what I did wrong?



Next:

Once I have the i4b setup correctly I would like to use the machine as a
gate way and have the folowing questions. I hope somebody can find a little
time to help me sort them out. Even a few hints and nudges in the right
direction would realy help ;-)

The machine's IP number is 192.168.0.100

1. Do I setup the machine's gateway pointing to itself (192.168.0.100) or
do I have to specify my provider's gateway (194.159.73.222)? What do I do
if I want to swap provider every now and then (because of connection problems?

2. In what order is IP traffic dealt with by the FreeBSD box?
(ed0 -> NATd -> Firewall -> sPPP) 

3. Does anybody have any hints on setting up the ISDN router


If anybody takes the time to answer any of my questions, thanks a billion
in advance!

Luke


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