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2 Messages

Saturday, August 19th, 2023 5:35 PM

My IPv6 PI block doesn't seem to be re-announced

I'm an EDI customer and am currently advertising to 7922 a /48 of ARIN-issued IPv6 PI space.  However, according to many looking glass (aside from Comcast's), I don't see it being readvertised by Comcast.  Who can I contact at Comcast to resolve this?

Note - my IPv4 PI space is being readvertised fine.

Here's what I'm seeing int he Comcast route-server.

RP/0/RSP0/CPU0:route-server.newyork.ny.ibone#show bgp ipv6 unicast 2620:9e:e000::/48
show bgp ipv6 unicast 2620:9e:e00$
Sat Aug 19 17:31:58.813 utc
BGP routing table entry for 2620:9e:e000::/48
  Process           bRIB/RIB  SendTblVer
  Speaker          657977414   657977414
Last Modified: Jul  3 22:45:53.990 for 2y06w
Paths: (1 available, best #1)
  Not advertised to any peer
  Path #1: Received by speaker 0
  Not advertised to any peer
  33650 400240 {4200887605}, (aggregated by 400240
    2001:559::9 from 2001:559::9 (
      Origin IGP, metric 0, localpref 300, valid, internal, best, group-best
      Received Path ID 0, Local Path ID 0, version 657977414
      Community: 7922:406 7922:2800 7922:2900 33650:9100
      Originator:, Cluster list:,,

Official Employee


41 Messages

9 months ago

My team is here to help and to best assist you with further investigating/troubleshooting this, please send us a private Direct Message. To send a "Peer to peer" / "Private Direct message" message to "Comcast Business":



• Click "Sign In" if necessary

• Click the "Peer to peer chat" icon or

• Click the "New message" (pencil and paper) icon

• The "To:" line prompts you to "Type the name of a person". Instead, type "Comcast Business" there

• - As you are typing a drop-down list appears. Select "Comcast Business" from that list

• - An "Comcast Business" graphic replaces the "To:" line

• Type your message in the text area near the bottom of the window

• Press Enter to send it"