I have a stranger problem.. one that may end up being reported to IBM, but
I figured I give the list a shot.

A user started complaining of not being able to send mail to a particular
domain (bergstedtandmount.com). The problem is that our name servers can
not resolve that name off the responsible name server. After digging for a
full day, this is what I found:

ANY aix machine that I run dig @ns1.ntwo.net any.thing.com times out. I
have tried 6 different aix machines with varying hardware, os version,
software, administrators, etc. All fail. On ANY other os that I try:
windows, openbsd, fedora, gentoo, this lookup is successful. How strange
is that????? I dug a little deeper. When I traceroute to that nameserver,
it never reaches it from our network. My network gurus decided to test
some things with routing and shut off one of our core routers. Traces
would sometimes work. When the trace reached past a certain cox router
(24.249.37.190) the dig was successful. The very next time the trace would
stop at this router and the dig would fail. Again, this is only true on
the aix boxes. What in the world is going on here???? There is a mixture
of problems. Now that both our core routers are back up I never get a
successful trace to that server, but this does not affect any other os.
What does aix do differently????

Please. Anyone. Got any advice?

AIX trace and dig:
allie@otc-dns1 (/home/allie)$ traceroute 207.191.33.2
trying to get source for 207.191.33.2
source should be 130.39.3.5
traceroute to 207.191.33.2 (207.191.33.2) from 130.39.3.5 (130.39.3.5), 30
hops max
outgoing MTU = 1500
1 vlan3-hsrp1-csc-118-t4.net.lsu.edu (130.39.3.10) 7 ms 1 ms 1 ms
2 130.39.1.133 (130.39.1.133) 1 ms 1 ms 1 ms
3 204.90.50.250 (204.90.50.250) 2 ms 2 ms 2 ms
4 atl-edge-17.inet.qwest.net (65.114.0.153) 28 ms 28 ms 29 ms
5 atl-core-02.inet.qwest.net (205.171.21.185) 30 ms 30 ms 30 ms
6 atl-brdr-03.inet.qwest.net (205.171.21.102) 32 ms 28 ms 27 ms
7 205.171.1.26 (205.171.1.26) 29 ms 31 ms 30 ms
8 tbr1-p012801.attga.ip.att.net (12.123.20.250) 30 ms 31 ms 29 ms
9 tbr2-cl1.wswdc.ip.att.net (12.122.10.69) 44 ms 75 ms 44 ms
10 tbr2-cl1.n54ny.ip.att.net (12.122.10.53) 48 ms 48 ms 48 ms
11 tbr1-cl1.cb1ma.ip.att.net (12.122.10.21) 54 ms 54 ms 57 ms
12 gbr1-p80.cb1ma.ip.att.net (12.122.5.54) 53 ms 55 ms 52 ms
13 gar3-p360.cb1ma.ip.att.net (12.123.40.185) 57 ms 55 ms 52 ms
14 12.125.47.58 (12.125.47.58) 80 ms 54 ms 56 ms
15 provbbrc02-pos0100.rd.ri.cox.net (68.1.0.43) 54 ms 54 ms 55 ms
16 NYRKBBRJ01-POS000000.R2.ny.cox.net (68.1.0.51) 56 ms 54 ms 54 ms
17 68.1.1.8 (68.1.1.8) 56 ms 54 ms 56 ms
18 68.1.1.3 (68.1.1.3) 130 ms 54 ms 57 ms
19 nrfkdsrc01-gew03010999.rd.hr.cox.net (68.1.0.30) 61 ms 59 ms 60 ms
20 nrfkbbrc01-pos0100.rd.hr.cox.net (68.1.0.22) 60 ms 60 ms 60 ms
21 lkhnbbrc01-pos0102.rd.at.cox.net (68.1.0.8) 69 ms 69 ms 95 ms
22 lkhnbbrc02-pos0100.rd.at.cox.net (68.1.0.3) 56 ms 55 ms 55 ms
23 mctybbrc02-pos0102.rd.no.cox.net (68.1.0.11) 66 ms 65 ms 68 ms
24 mctybbrc01-pos0100.rd.no.cox.net (68.1.0.62) 68 ms 65 ms 65 ms
25 68.1.1.200 (68.1.1.200) 80 ms 130 ms 79 ms
26 68.1.1.207 (68.1.1.207) 80 ms 78 ms 79 ms
27 ip24-249-36-186.br.br.cox.net (24.249.36.186) 82 ms 83 ms 84 ms
28 24.249.36.158 (24.249.36.158) 87 ms 88 ms 86 ms
29 cdm-24-249-37-185.laft.cox-internet.com (24.249.37.185) 92 ms 86 ms
88 ms
30 cdm-24-249-37-190.laft.cox-internet.com (24.249.37.190) 90 ms 87 ms
88 ms
allie@otc-dns1 (/home/allie)$ dig @207.191.33.2 allie.lsu.edu

; <<>> DiG 8.3 <<>> @207.191.33.2 allie.lsu.edu
; (1 server found)
;; res options: init recurs defnam dnsrch
;; res_nsend to server 207.191.33.2 207.191.33.2: Connection timed out


Fedore trace and dig:
[root@dhcpserv1 log]# traceroute 207.191.33.2
traceroute to 207.191.33.2 (207.191.33.2), 30 hops max, 38 byte packets
1 vlan184-hsrp1-csc-118-t4.net.lsu.edu (130.39.184.2) 0.309 ms 0.200 ms
0.186 ms
2 csc-118-v4-3550-border-1.g1.lsu.edu (130.39.1.3) 0.304 ms 0.232 ms
0.217 ms
3 204.90.50.250 (204.90.50.250) 195.404 ms 2.555 ms 0.779 ms
4 atl-edge-17.inet.qwest.net (65.114.0.153) 26.186 ms 26.460 ms 30.451
ms
5 atl-core-02.inet.qwest.net (205.171.21.185) 28.885 ms 26.750 ms
27.636 ms
6 atl-brdr-03.inet.qwest.net (205.171.21.102) 92.633 ms 27.345 ms
27.560 ms
7 205.171.1.26 (205.171.1.26) 27.593 ms 30.393 ms 27.266 ms
8 tbr1-p012402.attga.ip.att.net (12.122.12.29) 29.093 ms 28.275 ms
29.329 ms
9 tbr2-cl1.wswdc.ip.att.net (12.122.10.69) 45.586 ms 45.017 ms 43.036
ms
10 tbr2-cl1.n54ny.ip.att.net (12.122.10.53) 51.287 ms 48.422 ms 49.911
ms
11 tbr1-cl1.cb1ma.ip.att.net (12.122.10.21) 54.571 ms 53.984 ms 91.580
ms
12 gbr1-p80.cb1ma.ip.att.net (12.122.5.54) 54.137 ms 53.290 ms 53.295
ms
13 gar3-p360.cb1ma.ip.att.net (12.123.40.185) 53.100 ms 52.107 ms
52.003 ms
14 12.125.47.58 (12.125.47.58) 57.248 ms 57.434 ms 53.877 ms
15 provbbrc02-pos0100.rd.ri.cox.net (68.1.0.43) 54.442 ms 54.152 ms
56.408 ms
16 NYRKBBRJ01-POS000000.R2.ny.cox.net (68.1.0.51) 54.967 ms 55.237 ms
55.127 ms
17 68.1.1.8 (68.1.1.8) 91.018 ms 54.732 ms 55.437 ms
18 68.1.1.3 (68.1.1.3) 54.312 ms 58.492 ms 54.005 ms
19 nrfkdsrc01-gew03010999.rd.hr.cox.net (68.1.0.30) 61.407 ms 61.528 ms
59.750 ms
20 nrfkbbrc01-pos0100.rd.hr.cox.net (68.1.0.22) 60.363 ms 61.190 ms
59.629 ms
21 lkhnbbrc01-pos0102.rd.at.cox.net (68.1.0.8) 71.309 ms 72.813 ms
103.683 ms
22 lkhnbbrc02-pos0100.rd.at.cox.net (68.1.0.3) 55.044 ms 57.649 ms
54.609 ms
23 mctybbrc02-pos0102.rd.no.cox.net (68.1.0.11) 68.360 ms 68.487 ms
65.613 ms
24 mctybbrc01-pos0100.rd.no.cox.net (68.1.0.62) 67.800 ms 68.636 ms
67.790 ms
25 68.1.1.200 (68.1.1.200) 79.086 ms 145.572 ms 81.587 ms
26 68.1.1.207 (68.1.1.207) 79.337 ms 81.892 ms 80.238 ms
27 ip24-249-36-186.br.br.cox.net (24.249.36.186) 83.764 ms 83.663 ms
81.488 ms
28 24.249.36.158 (24.249.36.158) 84.710 ms 88.968 ms 84.222 ms
29 cdm-24-249-37-185.laft.cox-internet.com (24.249.37.185) 116.339 ms
87.247 ms 87.867 ms
30 cdm-24-249-37-190.laft.cox-internet.com (24.249.37.190) 89.947 ms
88.494 ms 85.611 ms
[root@dhcpserv1 log]# dig @207.191.33.2 allie.lsu.edu

; <<>> DiG 9.2.3 <<>> @207.191.33.2 allie.lsu.edu
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21586
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;allie.lsu.edu. IN A

;; ANSWER SECTION:
allie.lsu.edu. 3600 IN CNAME allie.ocs.lsu.edu.
allie.ocs.lsu.edu. 3600 IN A 130.39.198.155

;; Query time: 237 msec
;; SERVER: 207.191.33.2#53(207.191.33.2)
;; WHEN: Wed Dec 8 09:32:33 2004
;; MSG SIZE rcvd: 71