nanog mailing list archives

Re: Need Help Getting IP Unblocked by AT&T


From: Brian Raaen <braaen () zcorum com>
Date: Thu, 03 Sep 2009 08:29:32 -0400

I appreciate the offline replies.  After doing some more research myself
the issue appears to be related to the fact that AT&T is announcing the
block directly.  I did show "ip bgp 72.14.76.0" in a couple routers and
some showed the route originating in 701 (they were able to reach it)
and others showed it originating in 7018 (and they could not reach it).

Here is my question, since I am an ARIN admin contact for the IP block
how is the best way to get AT&T to quit announcing the block.

-- 
-----------------
Brian Raaen
Network Engineer
email: /braaen () zcorum com/ <mailto:braaen () zcorum com>

Brian Raaen wrote:
I'm not sure where to take this issue.  The Regular AT&T NOC contacts
are refusing to talk to me since I do not have a circuit ID, and do not
seem to have any understanding about transiting issues.  I am unable to
fully monitor and manage a router I control, as all traffic bound to its
lan IP that transits through the AT&T network is blocked.  The Router is
connected to a Verizon circuit, but any connection that transits through
AT&T is blocked.  The ip in Question is from a direct ARIN allocation
that I control.  I have attached a ping demonstrating that I am
receiving an ICMP deny from an AT&T core router.  I have also attached a
traceroute to both the offending IP and the WAN IP which appears to be
working.

braaen@brian-debian:~$ ping gw.bwtc.net
PING gw.bwtc.net (72.14.76.1) 56(84) bytes of data.
From 12.89.27.105 icmp_seq=1 Packet filtered
From 12.89.27.105 icmp_seq=3 Packet filtered
^C
--- gw.bwtc.net ping statistics ---
4 packets transmitted, 0 received, +2 errors, 100% packet loss, time 3004ms


braaen@brian-debian:~$ sudo traceroute-nanog -AO gw.bwtc.net
[sudo] password for braaen:
traceroute to gw.bwtc.net (72.14.76.1), 64 hops max, 40 byte packets
 1  gw-alpha.america.net (69.60.176.65) [AS4452] dns () america net  3 ms 
3 ms  3 ms
 2  gw-alpha.america.net (69.60.176.65) [AS4452] dns () america net  3 ms 
3 ms  4 ms
 3  69.60.160.8 (69.60.160.8) [AS4452] dns () america net  13 ms
rtrs00.america.net (69.60.176.21) [AS4452] dns () america net  13 ms
69.60.160.8 (69.60.160.8) [AS4452] dns () america net  13 ms
 4  69.60.160.8 (69.60.160.8) [AS4452] dns () america net  12 ms  35 ms  17 ms
 5  gig4-16.core2.suw1.qualitytech.com (64.88.172.145) [AS20141]
dnsadmin () globix net [MPLS: Label 673 Exp 0]  15 ms  14 ms  25 ms
 6  gig4-16.core2.suw1.qualitytech.com (64.88.172.145) [AS20141]
dnsadmin () globix net  14 ms  14 ms  18 ms
 7  ten8-3.peer1.suw1.qualitytech.com (64.88.172.197) [AS20141]
dnsadmin () globix net  14 ms  12 ms  14 ms
 8  border11.tge3-3.qts-1.acs.pnap.net (64.94.3.113) [AS14745]
hostmaster () pnap net  14 ms  14 ms  14 ms
 9  core1.te2-2-bbnet2.acs002.pnap.net (64.94.0.79) [AS14745]
hostmaster () pnap net  14 ms core1.te2-1-bbnet1.acs002.pnap.net
(64.94.0.15) [AS14745] hostmaster () pnap net  14 ms 12.86.102.5
(12.86.102.5) [<NONE>] rm-hostmaster () ems att com  14 ms
10  12.86.102.5 (12.86.102.5) [<NONE>] rm-hostmaster () ems att com  13 ms 
23 ms  13 ms
11  cr1.attga.ip.att.net (12.122.141.2) [<NONE>]
rm-hostmaster () ems att com [MPLS: Label 16745 Exp 0]  40 ms
cr2.ormfl.ip.att.net (12.122.5.141) [<NONE>] rm-hostmaster () ems att com
[MPLS: Label 20348 Exp 0] More labels  40 ms More labels  40 ms
12  cr2.ormfl.ip.att.net (12.122.5.141) [<NONE>]
rm-hostmaster () ems att com More labels  40 ms More labels  41 ms More
labels  40 ms
13  cr2.nwrla.ip.att.net (12.122.30.77) [<NONE>]
rm-hostmaster () ems att com [MPLS: Label 0 Exp 0] More labels  40 ms
gar1.nwrla.ip.att.net (12.123.153.85) [<NONE>]
rm-hostmaster () ems att com  38 ms  38 ms
14  gar1.nwrla.ip.att.net (12.123.153.85) [<NONE>]
rm-hostmaster () ems att com  50 ms  38 ms  38 ms
15  12.89.27.106 (12.89.27.106) [<NONE>] rm-hostmaster () ems att com  43
ms  44 ms  44 ms
16  * * 12.89.27.105 (12.89.27.105) [<NONE>] rm-hostmaster () ems att com 
44 ms !A




braaen@brian-debian:~$ sudo traceroute-nanog -AO 157.130.26.166
traceroute to 157.130.26.166 (157.130.26.166), 64 hops max, 40 byte packets
 1  gw-alpha.america.net (69.60.176.65) [AS4452] dns () america net  4 ms 
3 ms  6 ms
 2  gw-alpha.america.net (69.60.176.65) [AS4452] dns () america net  3 ms 
3 ms  3 ms
 3  rtrs00.america.net (69.60.176.21) [AS4452] dns () america net  14 ms 
13 ms  13 ms
 4  69.60.160.8 (69.60.160.8) [AS4452] dns () america net  13 ms  13 ms  12 ms
 5  66.0.192.194 (66.0.192.194) [AS20141] dns () deltacom net  13 ms  13
ms  15 ms
 6  gig4-16.core2.suw1.qualitytech.com (64.88.172.145) [AS20141]
dnsadmin () globix net [MPLS: Label 673 Exp 0]  30 ms
ten8-3.peer1.suw1.qualitytech.com (64.88.172.197) [AS20141]
dnsadmin () globix net  14 ms gig4-16.core2.suw1.qualitytech.com
(64.88.172.145) [AS20141] dnsadmin () globix net  34 ms
 7  ten8-3.peer1.suw1.qualitytech.com (64.88.172.197) [AS20141]
dnsadmin () globix net  19 ms  13 ms  13 ms
 8  core3.tge4-1-bbnet1.acs.pnap.net (64.94.0.3) [AS14745]
hostmaster () pnap net  14 ms core3.tge4-1-bbnet2.acs.pnap.net (64.94.0.67)
[AS14745] hostmaster () pnap net  14 ms  15 ms
 9  core3.tge4-1-bbnet2.acs.pnap.net (64.94.0.67) [AS14745]
hostmaster () pnap net  14 ms core3.tge4-1-bbnet1.acs.pnap.net (64.94.0.3)
[AS14745] hostmaster () pnap net  14 ms  15 ms
10  TenGigabitEthernet3-4.ar5.ATL1.gblx.net (207.218.80.217) [AS3549]
dns () gblx net 80 218 207 in-addr arpa  14 ms  14 ms  14 ms
11  ge4-3-1000M.ar3.PTY1.gblx.net (67.16.135.18) [AS22566] dns () gblx net 
18 ms  14 ms  14 ms
12  0.so-1-1-0.XT1.ATL4.ALTER.NET (152.63.86.170) [<NONE>]
hostmaster () uu net  14 ms  49 ms verizon-1.ar2.ATL2.gblx.net
(64.208.110.170) [AS3549] dns () gblx net  17 ms
13  0.so-1-1-0.XT1.ATL4.ALTER.NET (152.63.86.170) [<NONE>]
hostmaster () uu net  33 ms  14 ms  16 ms
14  0.so-7-1-0.XL3.BOS4.ALTER.NET (152.63.0.209) [<NONE>]
hostmaster () uu net  42 ms  48 ms  49 ms
15  POS6-0.GW10.BOS4.ALTER.NET (152.63.17.37) [<NONE>]
hostmaster () uu net  41 ms  42 ms  41 ms
16  * networkinnovations-gw.customer.alter.net (157.130.26.166) [<NONE>]
hostmaster () uu net  53 ms *



  

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