26 Apr
2003
26 Apr
'03
8:34 p.m.
[CC list cleaned up]
I think the most basic thing that any xSP could do to prevent relays and other basic address spoofing would be to disable source ip routing in every router that's installed. I would prevent a lot of abuse.
Curt
Can you support with data either: 1) IP source routing is used for "lots of abuse" 2) disabling IP source routing would prevent "lots of abuse" LSRR is a tool utilized to verify network topology and investigate such things as pointing default, etc. Several SP's require LSRR at minimum on border routers for this reason.