Re: NFS packet blocking (Was Mouse EXPLOIT info...)
Darren Reed (avalon@coombs.anu.edu.au)
Sat, 21 Jan 1995 01:35:29 +1100 (EDT)
[...]
> if you want the reply.. UDP doesn't have an IP_OPTIONS, thus doesn't support
> source routing.)
*cough*
IP_OPTIONS...they're options for IP which includes TCP, UDP, etc.
Any packet which is using source routing has an IP header > 20 bytes.
Look for IP options straight after the usual IP header and right before
the UDP header, coming soon to a network near you! :)
darren
p.s. in the early days of multicast, it was done with source routing and
many a router had a heart attack :-)