You have to change the destination address and port from the ip header packet
in the sink agent (Agent3) every time before you sent the packet.
For example:
void TcpSink::ack(Packet* opkt)
{
Packet* npkt = allocpkt();
// opkt is the "old" packet that was received
// npkt is the "new" packet being constructed (for the ACK)
double now = Scheduler::instance().clock();
hdr_tcp *otcp = hdr_tcp::access(opkt);
hdr_ip *oiph = hdr_ip::access(opkt);
hdr_tcp *ntcp = hdr_tcp::access(npkt);
....
hdr_ip* oip = hdr_ip::access(opkt);
hdr_ip* nip = hdr_ip::access(npkt);
/*************************
* add this *
*************************/
nip->daddr() = oip->saddr();
nip->dport() = oip->sport();
/*************************
* add this *
*************************/
// get the ip headers
nip->flowid() = oip->flowid();
// copy the flow id
....
send(npkt, 0);
// send it
}
I hope this helps
Robertus
Am Mittwoch, 30. August 2006 15:16 schrieb Przemysław Krekora:
> I want to create agent which will have ability to response on the request
> from any agent. Let's say that below is example (which of course doesn't
> work). I would like that for example that TCPSink could response on request
> from tcp1 and tcp2. What should I do ? Example
>
> Agent1 comunicate with Agent3
> and at the same time
> Agent2 comunicate with Agent3
> and Agent1 and Agent2 start talking, Agent3 only response on the request
>
> I suppose that i should create something like pool but i do not know how
> should i start fight with this.
>
> Przemyslaw Krekora
>
>
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