[Click] No response from click

K K k750115k at hotmail.com
Tue Sep 18 12:52:24 EDT 2007


Hi, I am trying to use click to implement a simple network consists of three nodes source, relay and destination connected through hub. The source is used as transmitter to transmit packets, the relay is to receive and retransmit while the destination is to receive from both source and relay. I used mgen to generate udp packets at the source node which has click configuration to send the packets to the network. Using tcpdump i can see the generated packets at the source node but i can't see any traffic at the other nodes. It looks as if click doesn't react. I tried to use Print element to print the received or transmitted packets but i couldn't figure out to where the printed packets, if any, will be sent. I am using knoppix operating system and work on kernel mode. my click configuration file for the source is th :: ToHost(click0); q1::Queue->ToDevice(eth0) FromHost(click0, 192.168.3.2/8) // Respond to ARP requests -> fh_cl :: Classifier(12/0806, 12/0800) -> ARPResponder(0/0 1:1:1:1:1:1) -> th // Forward IP packets from the fake device to the real Internet fh_cl[1] ->Strip(14)// remove crap Ether header -> CheckIPHeader //->t::Tee(2) -> aq_ath1 :: ARPQuerier(192.168.3.2, eth0) aq_ath1->q1 // listen for packets from ath1 fd_ath1 :: FromDevice(eth0) -> fd_ath1_cl :: Classifier(12/0806 20/0002,12/0806 20/0001, 12/0800, -) -> [1]aq_ath1 fd_ath1_cl[1] -> ARPResponder(192.168.3.2 eth0)-> q1 fd_ath1_cl[2] -> th fd_ath1_cl[3] -> th The configuration files for the other nodes are similar to this but with differnt ip address. Is anybody has idea about how i can fix this? Thanks, Kamal

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