[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: IPv6 Neighbour Solicitation messages and IPsec
> > which in turn would prevent all communications. Also, as per RFC
> > 2401 we do not in general have the possibility to specify policies
> > for individual ICMP message types.
> This passed the IESG in RFC 2894 (so it must be true):
> Note that for the SPD to distinguish Router Renumbering from other
> ICMP packets requires the use of the ICMP Type field as a selector.
> This is consistent with, although not mentioned by, the Security
> Architecture specification [IPSEC].
> It's no contradiction with what you said, though.
It should also be said that many ipsec implementors recognize the need
to have special support for icmp in ipsec policy; besides icmp type,
there's also the matter of protecting icmp errors using the "same"
policy as the traffic that generated them..