On Feb 11, 2013, at 4:52 PM, nanog-requ...@nanog.org wrote: > ------------------------------ > > Message: 4 > Date: Mon, 11 Feb 2013 13:24:21 -0800 > From: Jim Burwell <j...@jsbc.cc> > To: nanog@nanog.org > Subject: Problems for route to 92.43.96.0/21 for Comcast? > Message-ID: <51196185.3050...@jsbc.cc> > Content-Type: text/plain; charset=ISO-8859-1 > > Can't seem to get to 92.43.96.0/21 (specifically 92.43.96.130 ... in > Salzburg Austria) from Comcast Business in the Bay Area (traceroute > stops close to provider edge). > > Works from Verizon FiOS down in LA, and a HE.net host in Fremont. > > Comcast folks may want to look at this. :-) > > - Jim > > >
Comcast has a route server at route-server.newyork.ny.ibone.comcast.net. From the view there, it appears 92.43.96.130 has been black holed. The IP holder and/or folks at AS49322 may want to contact Comcast Security folks. http://xfinity.comcast.net/constantguard/Support/Contacts route-server.newyork.ny.ibone>show ip bgp 92.43.96.130 BGP routing table entry for 92.43.96.130/32, version 1613615116 Paths: (8 available, best #7, table Default-IP-Routing-Table, not advertised to EBGP peer) Advertised to update-groups: 2 64650, (received & used) 68.86.80.11 (metric 80255) from 68.86.80.11 (68.86.1.11) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export 64650, (received & used) 68.86.80.13 (metric 73765) from 68.86.80.13 (68.86.1.13) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export 64650, (received & used) 68.86.80.10 (metric 79700) from 68.86.80.10 (68.86.1.10) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export 64650, (received & used) 68.86.80.7 (metric 74330) from 68.86.80.7 (68.86.1.7) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export 64650, (received & used) 68.86.80.12 (metric 69700) from 68.86.80.12 (68.86.1.12) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export 64650, (received & used) 68.86.1.5 (metric 69635) from 68.86.80.6 (68.86.1.6) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export Originator: 68.86.1.5, Cluster list: 68.86.1.6 64650, (received & used) 68.86.80.2 (metric 65535) from 68.86.80.2 (68.86.1.2) Origin incomplete, metric 0, localpref 100, valid, internal, best Community: 64650:50001 no-export 64650, (received & used) 68.86.80.0 (metric 66795) from 68.86.80.0 (68.86.1.0) Origin incomplete, metric 0, localpref 100, valid, internal Community: 64650:50001 no-export route-server.newyork.ny.ibone> route-server.newyork.ny.ibone>show ip bgp 92.43.96.131 BGP routing table entry for 92.43.96.0/21, version 1594928908 Paths: (8 available, best #2, table Default-IP-Routing-Table) Advertised to update-groups: 2 1257 8437 3248 49322, (received & used) 68.86.1.42 (metric 66845) from 68.86.80.12 (68.86.1.12) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:42 7922:3000 Originator: 68.86.1.42, Cluster list: 68.86.1.12, 68.86.1.0 1257 8437 3248 49322, (received & used) 68.86.1.46 (metric 65585) from 68.86.80.2 (68.86.1.2) Origin IGP, metric 0, localpref 250, valid, internal, best Community: 7922:46 7922:3000 Originator: 68.86.1.46, Cluster list: 68.86.1.2 1257 8437 3248 49322, (received & used) 68.86.1.42 (metric 66845) from 68.86.80.11 (68.86.1.11) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:42 7922:3000 Originator: 68.86.1.42, Cluster list: 68.86.1.11, 68.86.1.0 1257 8437 3248 49322, (received & used) 68.86.1.42 (metric 66845) from 68.86.80.13 (68.86.1.13) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:42 7922:3000 Originator: 68.86.1.42, Cluster list: 68.86.1.13, 68.86.1.0 1257 8437 3248 49322, (received & used) 68.86.1.46 (metric 65585) from 68.86.80.6 (68.86.1.6) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:46 7922:3000 Originator: 68.86.1.46, Cluster list: 68.86.1.6, 68.86.1.2 1257 8437 3248 49322, (received & used) 68.86.1.46 (metric 65585) from 68.86.80.10 (68.86.1.10) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:46 7922:3000 Originator: 68.86.1.46, Cluster list: 68.86.1.10, 68.86.1.2 1257 8437 3248 49322, (received & used) 68.86.1.42 (metric 66845) from 68.86.80.0 (68.86.1.0) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:42 7922:3000 Originator: 68.86.1.42, Cluster list: 68.86.1.0 1257 8437 3248 49322, (received & used) 68.86.1.46 (metric 65585) from 68.86.80.7 (68.86.1.7) Origin IGP, metric 0, localpref 250, valid, internal Community: 7922:46 7922:3000 Originator: 68.86.1.46, Cluster list: 68.86.1.7, 68.86.1.2 route-server.newyork.ny.ibone> () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments