Stefan> Is there a way to create ICMP redirected packets with scotty
Stefan> for measuring the transmission time from node A to node B and
Stefan> from node A to node C over node B?
Stefan> The time difference is between these times gives the time a
Stefan> packet needs from node B to node C (statistically).
Stefan> =09
Stefan> A--->B A -> B -> C=20
Stefan> ^\__/ ^\_______/=09
Stefan> t1 t2=09
I don't think you can do this with ICMP redirects. You can do thinks
like this with IP source routing, but our experiments several years
ago were really bad (because IP option processing was more like a
gambling game at that time). IP implementation have changed quite a
bit, but now you are usually out of luck because router and firewalls
forbid source routing for various reasons.
Stefan> Is there a way to do the same with a traceroute (getting the
Stefan> route of packets from node B to node C initiated by node A)?
Some versions of traceroute have a -g option which enables IP source
routing.
Stefan> Is there a way to get all the network components on this route?
If your are lucky (means all devices are willing to cooperate), yes.
Juergen
-- Juergen Schoenwaelder schoenw@ibr.cs.tu-bs.de http://www.cs.tu-bs.de/~schoenw Technical University Braunschweig, Dept. Operating Systems & Computer Networks Bueltenweg 74/75, D-38106 Braunschweig, Germany. (Tel. +49 531 / 391-3283)-- !! This message is brought to you via the `tkined & scotty' mailing list. !! Please do not reply to this message to unsubscribe. To subscribe or !! unsubscribe, send a mail message to <tkined-request@ibr.cs.tu-bs.de>. !! See http://wwwsnmp.cs.utwente.nl/~schoenw/scotty/ for more information.