Danny McPherson writes:
Really? How many ISPs are you aware of that have
*decommissioned* every piece of routing gear in their
network in the past 7 years?
I think we're an ISP (AS559), and we don't have any equipment that
would be unable to filter against spoofed source addresses.
In fact I think that even seven years ago all our equipment could do
this. Yes, I know about certain "Engine-N" generations of certain
linecards for certain "high-end" routers, but my sympathy to those
ISPs who still use them is limited. (Especially with those ISPs that
keep a few in their network just as an excuse for not deploying BCP39
anywhere :-)
--
Simon.
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