Re: impact of recent cisco vulnerability

[itojun@iijlab.net]

>	because of recent cisco vulnerability, many ISPs installed filters
>	that would drop mobile-ip4 (ip protocol type 55), both inbound and
>	outbound at EBGP routers, as a countermeasure until they upgrade all
>	of the cisco routers they have.  it would seriously impact the
>	deployment/use of mobile-ip4.
>
>	also swipe (53), sun ND (77), PIM (103) are getting filtered.  i don't
>	think PIM operation will be affected by this as people wouldn't use
>	PIM across AS borders.  not sure about swipe and sun ND.

	more on this - some of the japanese ISPs decided to keep the ACL to
	drop them almost forever.  i.e. mobile-ip4 is dead.

itojun