Land and Cisco question

Owen DeLong owen at DeLong.SJ.CA.US
Mon Nov 24 05:55:31 UTC 1997

> Randy Bush said:
> > for each interface on a router
> >   block tcp which is both to and from that interface
> I don't think that's sufficient.  What about spoofed packets arriving via
> interface A, with IP source and destination both set to the address of
> interface B? 
> --apb (Alan Barrett)
If you do it with an access-list in then it doesn't matter.  Even a spoofed packet
will be blocked prior to arriving where it can do harm.


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