Re: HELP! DHCP & Comcast

 [email protected] (Christos Zoulas) wrote:

>  In article <[email protected]>,
>  Paul Newhouse  <[email protected]> wrote:
>  >My old cable modem seized up and died a while back and
>  >Comcast replace it with an RC DCM425c.  I hooked it up
>  >to an XP system (doctor says I'll recover after a while ;)
>  >and entered the account number and got the thing configured
>  >... I think?
>  >
>  >Then I did the same thing I used to do with the old modem:
>  >I powered if off and connected it to my NetBSD system (3.0.1).
>  >When I run dhclient <cable interface> it doesn't get connected.
>  >I can run tcpdump -i <cable interface> and see lots of arp traffic
>  >going by so I think the equipment is working but, I keep getting
>  >this in /var/log/messages:
>  >
>  >Oct 21 18:27:42 bigbox dhclient: No working leases in persistent
>  >database - sleeping.
>  >...
>  >Oct 21 18:35:59 bigbox dhclient: No DHCPOFFERS received.
>  >Oct 21 18:35:59 bigbox dhclient: No working leases in persistent
>  >database - sleeping.
>  >
>  >
>  >ifconfig of <cable interface> shows:
>  >
>  >: ifconfig tlp1
>  >tlp1:
>  >flags=8b43<UP,BROADCAST,RUNNING,PROMISC,ALLMULTI,SIMPLEX,MULTICAST> mtu
>  >1500
>  >        address: 00:a0:cc:3a:d9:52
>  >        media: Ethernet autoselect (100baseTX full-duplex)
>  >        status: active
>  >        inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
>  >        inet6 fe80::2a0:ccff:fe3a:d952%tlp1 prefixlen 64 scopeid 0x3
>  >
>  >I have a DSL line that should be my default route but, I changed the
>  >default to 0.0.0.0 and started up dhclient.  It still doesn't want to
>  >connect.
>  >
>  >Can anybody tell me where I'm going wrong with this??
>  
>  try tcpdump -vv -s 1500 -i tlp1 port bootpc or port bootps

Thanks that eliminates the noise.  I decided to reboot the firewall
to clean up any loose ends.  Now I get:


# dhclient tlp1
Internet Software Consortium DHCP Client V3.0.1rc11
Copyright 1995-2002 Internet Software Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

Listening on BPF/tlp1/00:a0:cc:3a:d9:52
Sending on   BPF/tlp1/00:a0:cc:3a:d9:52
Can't bind to dhcp address: Address already in use
Please make sure there is no other dhcp server
running and that there's no entry for dhcp or
bootp in /etc/inetd.conf.   Also make sure you
are not running HP JetAdmin software, which
includes a bootp server.

If you did not get this software from ftp.isc.org, please
get the latest from ftp.isc.org and install that before
requesting help.

If you did get this software from ftp.isc.org and have not
yet read the README, please read it before requesting help.
If you intend to request help from the [email protected]
mailing list, please read the section on the README about
submitting bug reports and requests for help.

Please do not under any circumstances send requests for
help directly to the authors of this software - please
send them to the appropriate mailing list as described in
the README file.

exiting.
bigbox# ps -auwx|grep dhc 
root     480  0.0  0.0  256     4 ttyp2 R+    9:45PM 0:00.00 grep dhc (ksh)
bigbox# nr
Routing tables

Internet:
Destination        Gateway            Flags     Refs     Use    Mtu  Interface
0/8                link#3             UC          0        0      -  tlp1 =>
default            209.128.91.41      UGS         9      793      -  tlp0
127/8              127.0.0.1          UGRS        0        0  33192  lo0
127.0.0.1          127.0.0.1          UH          3       10  33192  lo0
172.16.89/24       link#2             UC          1        0      -  re0
172.16.89.42       00:40:05:36:73:53  UHLc        5     1155      -  re0
209.128.91.40/29   link#1             UC          1        0      -  tlp0
209.128.91.41      00:00:c5:97:fd:c8  UHLc        1        0      -  tlp0

I'm not running a dhcp server or a boot server, so now I'm even more confused.

Paul