DNS issues

Jeff LaCoursiere jeff at jeff.net
Wed Mar 9 18:02:18 GMT 2005


I am fairly stumped and hope someone can shed some light...

FreeBSD 5.3-RELEASE on a laptop.  Plugged into a DLINK home firewall,
which is plugged into another DLINK home firewall, which is connected to
an ISP.  I get no DNS responses with nslookup or dig, but when I sniff the
traffic I see the responses arriving.  There are no ipfw lists or other
filters involved.  Lastly, when plugged into the outer DLINK everything
works fine. Relevant info:

jefflap% uname -a
FreeBSD jefflap.jeff.net 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov  5
04:19:18 UTC 2004
root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
jefflap% nslookup www.jeff.net
;; connection timed out; no servers could be reached

jefflap%
jefflap% s tcpdump -nli sis0 host 66.185.33.2
Password:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on sis0, link-type EN10MB (Ethernet), capture size 96 bytes
13:58:18.672308 IP 10.0.13.11.56249 > 66.185.33.2.53:  41563+ A?
www.jeff.net. (30)
13:58:18.686648 IP 66.185.33.2.53 > 10.0.13.11.56249:  41563 1/3/3 A
216.185.111.244 (147)
13:58:24.692050 IP 10.0.13.11.56249 > 66.185.33.2.53:  41563+ A?
www.jeff.net. (30)
13:58:24.701612 IP 66.185.33.2.53 > 10.0.13.11.56249:  41563 1/3/3 A
216.185.111.244 (147)
13:58:30.712139 IP 10.0.13.11.56249 > 66.185.33.2.53:  41563+ A?
www.jeff.net. (30)
13:58:30.720652 IP 66.185.33.2.53 > 10.0.13.11.56249:  41563 1/3/3 A
216.185.111.244 (147)

Any ideas?

Cheers,

j




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