Hi,
I am also getting the same error. when i send packets from node 0 to node 1
it is working fine. When i tries to forward the packet from node 1 to node
2, all the packets(data) gets dropped at node 1. But some other
packet(Routing) gets transfered. Please help me. Thnaks in advance
With regards,
Shyam Sundar
Yasser Toor wrote:
>
>
> Hi Everyone,
>
> I have an ARP related problem. I am simulating a wireless linear
> network with a distance of 200m between each node.
>
> Node 0-----------------Node 1 ----------------Node2
> 200m 200m
>
> I set up a CBR connection between node 0 and node 2, but ALL the CBR
> packets are dropped. In the tracefile, I see that the source node
> tries to get the hardware address of the destination but gets no reply
> as shown below (0 is the source and 2 is the destination, with 1 being
> the intermediate node).
>
> --------------snip---------------------
> s 10.855448400 _0_ MAC --- 0 ARP 80 [0 ffffffff 0 806] -------
> [REQUEST 0/0 0/2]
> r 10.855865055 _1_ MAC --- 0 ARP 28 [0 ffffffff 0 806] -------
> [REQUEST 0/0 0/2]
> .
> .
> D 11.783164825 _0_ IFQ ARP 114 cbr 1044 [0 0 0 800] ------- [0:0 2:0
> 64 0] [1] 0 0
> --------------snip---------------------
>
> I have tried different configurations, i.e. CBR connections between
> Node1-Node0 and Node1-Node2 work fine separately and at the same
> time, but Node0-Node2 drops all packet.
>
> In the ARP.cc file, I found the following code,
>
> --------------snip---------------------
>
> if(ah->arp_op == ARPOP_REQUEST &&
> ah->arp_tpa == node_->address()) {
>
> --------------snip---------------------
>
>
> It seems to me that a node will only reply to an ARP request if the
> target hardware address is itself, but shouldn't it reply if it has
> the hardware address in the ARP cache.
>
> What did I miss here?
>
> Thanks for any tips/help you can give,
>
> Yasser
>
>
>
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