I'm getting accounting messages like these that seem to be coming from the loopback interface, but `tcpdump -i lo` doesn't see them so they are not coming from a local client. If they are not coming from a local client then how can I figure out where they are coming from? Thu Jan 12 07:19:58 2006 Acct-Status-Type = Stop NAS-IP-Address = x.x.x.x (legit nas IP) Acct-Delay-Time = 0 User-Name = "user" NAS-Port = 536936515 Acct-Session-Id = "0A000067" Service-Type = Framed-User Framed-Protocol = PPP Framed-IP-Address = x.x.x.x (legit Framed-IP-Address) Acct-Session-Time = 0 Acct-Input-Octets = 0 Acct-Output-Octets = 0 Acct-Input-Packets = 0 Acct-Output-Packets = 0 Client-IP-Address = 127.0.0.1 Acct-Unique-Session-Id = "1cc41474b27ed376" Timestamp = 1137082798 Thu Jan 12 07:23:50 2006 Acct-Status-Type = Stop NAS-IP-Address = x.x.x.x (legit nas IP) Acct-Delay-Time = 0 User-Name = "anotheruser" NAS-Port = 268501111 Acct-Session-Id = "0D008123" Service-Type = Framed-User Framed-Protocol = PPP Framed-IP-Address = x.x.x.x (legit Framed-IP-Address) Acct-Session-Time = 0 Acct-Input-Octets = 0 Acct-Output-Octets = 0 Acct-Input-Packets = 0 Acct-Output-Packets = 0 Client-IP-Address = 127.0.0.1 Acct-Unique-Session-Id = "4ed0aac222580a10" Timestamp = 1137083030