Nope, no way to run tcpreplay on two machines that way. Basically, tcpreplay would need some way to synchronize the traffic between the two machines and it doesn't have that ability today. -- Aaron Turner http://synfin.net/ Twitter: @synfinatic Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin
On Thu, Apr 3, 2014 at 10:01 AM, David Newman <dnew...@networktest.com> wrote: > On 4/3/14, 9:47 AM, Aaron Turner wrote: >> Per the FAQ: >> >> http://tcpreplay.synfin.net/wiki/FAQ#Doestcpreplaysupportsendingtraffictoaserver >> >> You can't use tcpreplay to send TCP traffic to a server (like a web >> server). That's why you're getting the RST packets. >> >> If you want to send traffic through the routers, yes, tcpreplay can do >> that. You'll first need to run tcpprep to split the traffic into the >> client and server flows and then use tcpreplay to send the traffic. >> The caveat is that you'll need one computer with two NIC's connected >> to either side of the routing path. >> >> All the above is documented in the manual, so I continue your research there. > > Thanks, Aaron. I had read the FAQ and the examples, and didn't see > coverage for the case where tcpreplay involves two machines, each on a > different subnet. Is there a way to run using two machines, for example > when the machines are in different physical locations? > > In the lab, I will try again with a multiport NIC on one machine, per > the examples page. > > Thanks again. > > dn > > > > >> -- >> Aaron Turner >> http://synfin.net/ Twitter: @synfinatic >> Those who would give up essential Liberty, to purchase a little temporary >> Safety, deserve neither Liberty nor Safety. >> -- Benjamin Franklin >> >> >> On Wed, Apr 2, 2014 at 10:04 PM, David Newman <dnew...@networktest.com> >> wrote: >>> How to get tcpreplay working across router hops? >>> >>> Topology is like this: >>> >>> 10.2.0.0/16 <-> router <-> 10.1.0.0/16 <-> router <-> 10.0.0.0/16 >>> >>> The original pcap has one client and three server addresses, all on >>> different subnets. >>> >>> Using tccpprep and tcprewrite, I've changed this so that there's a new >>> pcap with one client address (10.2.255.254) and three server addresses >>> (10.0.255.25[2-4]). >>> >>> Routing works fine, and the hosts at these addresses can all ping each >>> other. >>> >>> Problem is, when I replay the pcap there are lots of RSTs coming back >>> from the 10.0.0.0 side, probably because the servers on those addresses >>> aren't listening on the port used in the pcap (port 80 in this case). >>> >>> Do I need to play the pcap on both sides? Or somehow split the flows >>> apart? Or something else? >>> >>> thanks >>> >>> dn >>> >>> >>> ------------------------------------------------------------------------------ >>> _______________________________________________ >>> Tcpreplay-users mailing list >>> Tcpreplay-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/tcpreplay-users >>> Support Information: http://tcpreplay.synfin.net/trac/wiki/Support >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Tcpreplay-users mailing list >> Tcpreplay-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/tcpreplay-users >> Support Information: http://tcpreplay.synfin.net/trac/wiki/Support >> > > ------------------------------------------------------------------------------ > _______________________________________________ > Tcpreplay-users mailing list > Tcpreplay-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/tcpreplay-users > Support Information: http://tcpreplay.synfin.net/trac/wiki/Support ------------------------------------------------------------------------------ _______________________________________________ Tcpreplay-users mailing list Tcpreplay-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tcpreplay-users Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
