RoadRunner/Adelphia AS14065 contact

Mark Andrews marka at isc.org
Thu Feb 9 02:37:23 UTC 2012


In message <20120208234141.GZ5968 at angus.ind.WPI.EDU>, Chuck Anderson writes:
> On Wed, Jan 11, 2012 at 12:14:29PM -0800, chk wrote:
> > If there is a Roadrunner contact monitoring the list can you please  
> > contact me off list regarding a routing issue from ns1/2.adelphia.net
> 
> Did you ever get any response?  I'm having a similar issue:
> 
> For the past couple months, we have been unable to query the
> authoritative DNS servers for adelphia.net on IP addresses
> 75.180.129.58 and 75.180.129.59 from our campus network IP block
> 130.215.0.0/16, using either TCP or UDP:
> 
> >dig +short +norec @75.180.129.58 adelphia.net. mx
> ;; connection timed out; no servers could be reached
> 
> >dig +short +norec @75.180.129.59 adelphia.net. mx
> ;; connection timed out; no servers could be reached
> 
> >dig +tcp +short +norec @75.180.129.58 adelphia.net. mx
> ;; communications error to 75.180.129.58#53: end of file
> 
> >dig +tcp +short +norec @75.180.129.59 adelphia.net. mx
> ;; communications error to 75.180.129.59#53: end of file
> 
> This is causing email failures to anyone with an @adelphia.net email
> address.
> 
> I can ping the DNS servers from 130.215.0.0/16:
> 
> >ping  -c3 75.180.129.58 
> PING 75.180.129.58 (75.180.129.58) 56(84) bytes of data.
> 64 bytes from 75.180.129.58: icmp_req=1 ttl=241 time=26.9 ms
> 64 bytes from 75.180.129.58: icmp_req=2 ttl=241 time=26.7 ms
> 64 bytes from 75.180.129.58: icmp_req=3 ttl=241 time=26.7 ms
> 
> --- 75.180.129.58 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 2001ms
> rtt min/avg/max/mdev = 26.711/26.797/26.953/0.110 ms
> 
> >ping -c3 75.180.129.59
> PING 75.180.129.59 (75.180.129.59) 56(84) bytes of data.
> 64 bytes from 75.180.129.59: icmp_req=1 ttl=241 time=25.9 ms
> 64 bytes from 75.180.129.59: icmp_req=2 ttl=241 time=26.1 ms
> 64 bytes from 75.180.129.59: icmp_req=3 ttl=241 time=25.5 ms
> 
> --- 75.180.129.59 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
> rtt min/avg/max/mdev = 25.523/25.871/26.120/0.285 ms
> 
> And I can make a TCP port 53 connection which gets immediately closed:
> 
> >telnet 75.180.129.58 53
> Trying 75.180.129.58...
> Connected to 75.180.129.58.
> Escape character is '^]'.
> Connection closed by foreign host.
> 
> >telnet 75.180.129.59 53
> Trying 75.180.129.59...
> Connected to 75.180.129.59.
> Escape character is '^]'.
> Connection closed by foreign host.
> 
> It is acting as if there is an ACL or firewall rule that is blocking
> 130.215.0.0/16 from accessing DNS port 53 on the DNS servers at
> 75.180.129.58 and 75.180.129.59.
> 
> I've already ruled out any firewalls on our end, as well as any
> routing issues.  I can see the UDP port 53 packets going out, but
> there is no reply.  I can see the 3-way TCP port 53 handshake packets
> going out and coming in, but the other end closes the connection
> immediately.
> 
> If I use a non-130.215.0.0/16 source IP from my router, I get a normal
> response via both UDP and TCP:
> 
> % dig -b 207.210.142.142 +short +norec @75.180.129.58 adelphia.net. mx
> 10 cdptpa-smtpin01.mail.rr.com.
> 20 cdptpa-smtpin02.mail.rr.com.
> 
> % dig -b 207.210.142.142 +short +tcp +norec @75.180.129.58 adelphia.net. mx
> 10 cdptpa-smtpin01.mail.rr.com.
> 20 cdptpa-smtpin02.mail.rr.com.
> 
> I'd appreciate if someone could help me find a clueful contact at
> TW/RoadRunner/Adelphia/Comcast/whoever they are now.  I've tried all
> the contacts in WHOIS for adelphia.net, the IP block, and ASN.  I've
> tried the NOC List on puck.nether.net--no matches.
> 
> Thanks,
> Chuck
> 

Sounds like a bad "bogus" acl.

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org




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