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Date:      Mon, 4 Dec 2000 16:51:29 -0500
From:      Alexander Anderson <a.anderson@utoronto.ca>
To:        freebsd-questions@freebsd.org
Subject:   Re: Resolver issues
Message-ID:  <20001204165129.A22789@dusty.galima.2y.net>
In-Reply-To: <20001203211741.Z99903@149.211.6.64.reflexcom.com>; from cjclark@reflexnet.net on Sun, Dec 03, 2000 at 09:17:41PM -0800
References:  <20001203175100.A20490@dusty.galima.2y.net> <20001203211741.Z99903@149.211.6.64.reflexcom.com>

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On Sun, Dec 03, 2000 at 09:17:41 PM or thereabouts, Crist J . Clark
wrote:

> > $ ifconfig tun0 | grep "inet "
> >         inet 64.229.84.85 --> 64.229.84.1 netmask 0xffffff00 
>                                                     ^^^^^^^^^^
> Well that doesn't look right.

Hmm, what should it be? I'll try to experiment with my network settings
then. And here's my ``ppp.conf'' by the way; does anything look strange
here?

$ cat /etc/ppp/ppp.conf
# /etc/ppp/ppp.conf

default:
 set log Phase Chat LCP IPCP CCP tun command

pppoe:
 set redial 15 28800
 set reconnect 15 28800
 set device PPPoE:vr0
 set mru 1492
 set mtu 1492
 set speed sync
 enable lqr
 set lqrperiod 5
 set cd 5
 set dial
 set login
 set timeout 0
 set authname xxxxxxxx@sympatico.ca
 set authkey xxxxxxxx
 set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
 add default HISADDR
 enable dns

# end of ppp configuration

> > $ ping example.com
> > PING xxxxx.xxx (64.229.84.85): 56 data bytes
> > 64 bytes from 64.229.84.85: icmp_seq=0 ttl=255 time=0.311 ms
> 
> That netmask is strange. What does your routing table look at it while
> we're at it?

I have never changed the routing table manually, so if anything is out
of order here, please suggest me what to do.

$ netstat -r -f inet
Routing tables

Internet:
Destination        Gateway            Flags      Netif Expire
default            HSE-Toronto-ppp178 UGSc        8  2655320     tun0
HSE-Toronto-ppp178 HSE-Toronto-ppp178 UH          7        0     tun0
localhost          localhost          UH          6   622486      lo0
192.168.1          link#2             UC          0        0      vr1 =>
xxxxx              0:80:c8:f3:80:2a   UHLW        0   111421      vr1    881
xxxxx              link#2             UHLW        1    26028      vr1 =>

> But more to the point, what happens if you have a 'tcpdump port 53'
> running when you get these odd lookup results? A,
> 
>   # tcpdump -vvnX port 53

tcpdump: listening on tun0
16:19:01.582876 64.229.84.85.2022 > 209.226.175.224.53:  45199+ A? \
example.com. (29) (ttl 64, id 46616)
0x0000	 4500 0039 b618 0000 4011 ad9e 40e5 5455	E..9....@...@.TU
0x0010	 d1e2 afe0 07e6 0035 0025 608e b08f 0100	.......5.%`.....
0x0020	 0001 0000 0000 0000 0765 7861 6d70 6c65	.........example
0x0030	 0363 6f6d 0000 0100 01                 	.com.....
16:19:01.940047 64.229.84.85.2023 > 209.226.175.224.53:  45200+ A? \
example.com.xxxxxx.xx.net. (43) (ttl 64, id 46617)
0x0000	 4500 0047 b619 0000 4011 ad8f 40e5 5455	E..G....@...@.TU
0x0010	 d1e2 afe0 07e7 0035 0033 92d1 b090 0100	.......5.3......
0x0020	 0001 0000 0000 0000 0765 7861 6d70 6c65	.........example
0x0030	 0363 6f6d 0667 616c 696d 6102 3279 036e	.com.xxxxxx.xx.n
0x0040	 6574 0000 0100 01                      	et.....
^C
214 packets received by filter
0 packets dropped by kernel

Notes: all this obtained while pinging ``example.com''; my domain name
was in place of xxxxxx.xx.net; 209.226.175.224 is the nameserver of my
ISP.

And here's a general overview of my system if that helps: interface vr0
for the Internet, vr1 for LAN. Internet connection using PPPoE.

Thanks for your help everyone!


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