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RE: aDSL Router
- To: <misc_(_at_)_openbsd_(_dot_)_org>
- Subject: RE: aDSL Router
- From: "Gavin Lloyd Bates" <gavin_(_dot_)_bates_(_at_)_downunder_(_dot_)_net_(_dot_)_au>
- Date: Fri, 13 Oct 2000 07:50:23 +0930
- Importance: Normal
I'm only fairly new at this myself, but I have got dhcpd running on my
A few things to try:
1. Does the IP address they're being assigned look like an external IP
address? Disconnect from the internet to see if your PC's are actually
getting DHCP replies from outside of your network (assuming you haven't
blocked that kind of traffic with IPF..).
2. Is ep3 a known working network card? Does it work in other machines?
3. Can you ping the windows machines from the OpenBSD box? Windows 9x boxes
seem to have some strange ideas about what to do with a non-windows gateway.
4. Do the Windows machines (especially if they're 9x boxes) have a default
route? Check the gateway config with an ipconfig. (One gem I got from the M$
KB - Windows 9x machines [it didn't mention any special conditions..] don't
remember static routes you put in, even if you use the retain parameter!)
5. Do you have rules in your IPF that might block ICMP packets on all
interfaces? (Guilty of that one myself!)
Hope this helps,
From: owner-misc_(_at_)_openbsd_(_dot_)_org [mailto:owner-misc_(_at_)_openbsd_(_dot_)_org]On Behalf Of
Rob Hines Jr.
Sent: Thursday, 12 October 2000 8:06
Subject: aDSL Router
Okay, I admit it, I give up. I recently built an OpenBSD box, to be used
as a router for an aDSL connection. The aDSL modem connects to the
switch, then a machine must connect to the modem, and that machine is
given an IP via DHCP. I have the OpenBSD machine connecting to the
internet beautifully, and so far as I can tell, the 3com Etherlink IIIs
that I am using are also working fine (pingable, link lights are on),
but I have yet to get anything to work on the secondary interface.
This is the setup
Internet ---> aDSL modem w/ Real IP ---> ep2 (Etherlink card 1) w/ Real
IP via DHCP
(Etherlink card 2) w/ 192.168.10.1 IP ---> Internal Network
(dhcpd bound to ep3 to farm out IPs)
I followed all the instructions verbatim from the Network FAQ
(http://www.openbsd.org/faq/faq6.html) and nothing happens through ep3,
no log entry, nothing.
I wanted to run dhcpd on ep3 to farm our info to internal clients, but
so far, ep3 won't even answer a ping. When I boot up my Win2K machine
setup appropriately to obtain IP automatically, I get a 164.254.233.xxx
address from some undiscernable source, and when I set the gateway and
IP manually, I get nothing.
With the last set of rules in place from the FAQ (corrected for my
setup), I could not even telnet our from console to any site by name. It
would allow me to telnet to an IP, but not a name.
The only log entry I've found that seems pertinant to my problems are
the DHCP CLIENT entries when the modem assigns the ip to ep2. Nothing
else shows up.No firewall logging, no dhcpd requests, etc.
Does anyone have a suggestion on how I can get this working?
Rob Hines Jr.
Visit your host, monkey.org