[Click] Using nsclick
Michael Voorhaen
michael.voorhaen at ua.ac.be
Thu Sep 8 04:34:04 EDT 2005
Hi Jens,
after
[$node_(0) entry] loadclick "access-point.nsclick"
[$node_(1) entry] loadclick "station.nsclick"
add something like:
for {set i 0} {$i < $nodecount} {incr i} {
$ns_ at 0.0 "[$node_($i) entry] runclick"
}
This forces the click node to start, else no click code is executed
until the first data packet is sent to click.
I'm pretty sure that this will fix your problem.
Michael
Jens Mueller wrote:
>Hello,
>
>I'd like to use nsclick. I installed it following the instructions from
>the "Nsclick User Manual"
>(http://systems.cs.colorado.edu/Networking/nsclick/nsclickmanual.ps).
>Thus, I'm using ns-2.26 and click-1.4.3. The sample scripts (see
><ns-allinone-2.26>/ns-2.26/tcl/ex/nsclick*) worked.
>I took "nsclick-simple-wlan.tcl" as a basis and wrote a simulation with
>adapted click configuration files. "access-point.click" and
>"station.click" were used as a starting point.
>The files "test.tcl", "access-point.nsclick" and "station.nsclick"
>are attached. Just execute "ns test.tcl" to run the simulation and to
>generate the files.
>
>It seems to me that there is a fundamental problem, because the frames
>sent from the access point don't reach the station (The file
>"node1_station_from_eth0" is empty.). Furthermore I don't know, why I
>need to attach applications like "CBR", because the access point will
>generate its packets on its own. I would also appreciate ns2 scripts
>working with nsclick to work out the problem myself.
>
>Bye,
>Jens
>
>
>------------------------------------------------------------------------
>
>//access_point.click
>
>// This configuration contains a configuration for running
>// an 802.11b access point.
>// It creates an interface using FromHost called "ap"
>// and uses open authentication to allow stations to associate to it.
>// This configuration assumes that you have a network interface named
>// eth0 and that it is located on channel 3.
>
>// Run it at user level with
>// 'click access_point.click'
>
>// Run it in the Linux kernel with
>// 'click-install access-point.click'
>// Messages are printed to the system log (run 'dmesg' to see them, or look
>// in /var/log/messages), and to the file '/click/messages'.
>
>AddressInfo(ap_bssid eth0:simnet);
>
>winfo :: WirelessInfo(SSID "click-ssid", BSSID ap_bssid, CHANNEL 1, INTERVAL 2000);
>
>rates :: AvailableRates(DEFAULT 2 4 11 22);
>
>q :: Queue(10)
>//-> Prism2Decap()
>//-> Strip(10)
>-> ToDump(access-point_to_eth0, PER_NODE 1, ENCAP 802_11)
>-> ToSimDevice (eth0);
>
>FromSimDevice(eth0, 4096)
>//-> prism2_decap :: Prism2Decap()
>//-> extra_decap :: ExtraDecap()
>-> ToDump(access-point_from_eth0, PER_NODE 1, ENCAP 802_11)
>-> phyerr_filter :: FilterPhyErr()
>-> tx_filter :: FilterTX()
>//-> dupe :: WifiDupeFilter(WINDOW 20)
>-> wifi_cl :: Classifier(0/08%0c 1/01%03, //data
> 0/00%0c); //mgt
>
>wifi_cl [1] -> mgt_cl :: Classifier(0/00%f0, //assoc req
> 0/10%f0, //assoc resp
> 0/40%f0, //probe req
> 0/50%f0, //probe resp
> 0/80%f0, //beacon
> 0/a0%f0, //disassoc
> 0/b0%f0, //disassoc
> );
>
>wifi_cl [0]
>-> decap :: WifiDecap()
>-> HostEtherFilter(ap_bssid, DROP_OTHER true, DROP_OWN true)
>-> Discard;
>
>
>mgt_cl [0] -> Print ("assoc_req")
>-> ar :: AssociationResponder(WIRELESS_INFO winfo,
> RT rates)
>-> q;
>
>mgt_cl [1] -> Print ("assoc_resp") -> Discard;
>
>mgt_cl [2]
>-> beacon_source :: BeaconSource(WIRELESS_INFO winfo,
> RT rates)
>-> q;
>
>mgt_cl [3] -> Print ("probe_resp", 200) -> Discard;
>mgt_cl [4] -> bs :: BeaconScanner(RT rates) -> Discard;
>mgt_cl [5] -> Print ("disassoc") -> Discard;
>mgt_cl [6] -> Print ("auth") -> auth :: OpenAuthResponder(WIRELESS_INFO winfo) -> q;
>
>
>
>
>
>
>
>------------------------------------------------------------------------
>
>//station.click
>
>// This configuration contains a configuration for running
>// an 802.11b station (which can connect to an access point).
>// It creates an interface using FromHost called "station"
>// and uses open authentication to connect to an access point.
>// This configuration assumes that you have a network interface named
>// eth0 and that it is located on channel 1.
>
>// Run it at user level with
>// 'click station.click'
>
>// Run it in the Linux kernel with
>// 'click-install station.click'
>// Messages are printed to the system log (run 'dmesg' to see them, or look
>// in /var/log/messages), and to the file '/click/messages'.
>// You will have to remove the elements ControlSocket and ChatterSocket to run
>// in the kernel.
>
>// To associate to an access point, load this config and then write the
>// following handlers:
>//
>// winfo.channel <channel (integer)>
>// winfo.bssid <access_point etheraddress>
>// winfo.ssid <ssid of access point>
>//
>// And then trigger the assocation requests by writing the following handlers:
>//
>// station_auth.send_auth_req 1
>// station_auth.send_assoc_req 1
>//
>// You should then see the following messages:
>//
>// station_auth :: OpenAuthRequester: auth 0 seq 2 status 0
>// station_assoc :: AssociationRequester: response 00:12:17:1c:f1:b1 +24 [ ESS ] status 0 associd 49156 ( { 2 4 11 22 } 36 48 72 108 )
>//
>// status of 0 means you associated/authenticated successfully.
>//
>
>
>//control :: ControlSocket("TCP", 7777);
>//chatter :: ChatterSocket("TCP", 7778);
>
>AddressInfo(station_address eth0:simnet);
>winfo :: WirelessInfo(SSID "click-ssid", BSSID 00:03:47:70:89:01, CHANNEL 1);
>
>rates :: AvailableRates(DEFAULT 2 4 11 22);
>
>q :: Queue(10)
>//-> SetTXRate(2)
>//-> SetTXPower(63)
>//-> extra_encap :: ExtraEncap()
>-> ToDump(station_to_eth0,PER_NODE 1, ENCAP 802_11)
>-> PrintWifi("ASASSS")
>-> ToSimDevice (eth0);
>//-> ToDump(station_from_eth0,PER_NODE 1, ENCAP 802_11)
>//-> AssociationResponder(CHANNEL 1)
>
>FromSimDevice(eth0, 4096)
>-> prism2_decap :: Prism2Decap()
>-> extra_decap :: ExtraDecap()
>-> Print("station_IN")
>-> ToDump(station_from_eth0,PER_NODE 1, ENCAP 802_11)
>-> FilterPhyErr()
>-> tx_filter :: FilterTX()
>-> dupe :: WifiDupeFilter()
>-> wifi_cl :: Classifier(0/00%0c, //mgt
> 0/08%0c, //data
> );
>
>// management
>wifi_cl [0]
>-> management_cl :: Classifier(0/00%f0, //assoc req
> 0/10%f0, //assoc resp
> 0/80%f0, //beacon
> 0/a0%f0, //disassoc
> 0/50%f0, //probe resp
> 0/b0%f0, //auth
> );
>
>
>
>station_probe :: ProbeRequester(ETH station_address,
> WIRELESS_INFO winfo,
> RT rates)
>-> PrintWifi(probe-req) -> Print(probe-req) -> q;
>
>station_auth :: OpenAuthRequester(ETH station_address, WIRELESS_INFO winfo)
>-> PrintWifi(auth-req)
>-> q;
>
>station_assoc :: AssociationRequester(ETH station_address,
> WIRELESS_INFO winfo,
> RT rates)
>-> Print("sent assoc_req", 60)
>-> PrintWifi(assoc-req)
>-> q;
>
>management_cl [0] -> Print ("assoc_req") -> Discard;
>management_cl [1] -> Print ("assoc_resp", 60) -> station_assoc;
>management_cl [2] -> beacon_t :: Tee(2)
>-> bs :: BeaconScanner(RT rates, WIRELESS_INFO winfo) -> Discard;
>beacon_t [1] -> tracker :: BeaconTracker(WIRELESS_INFO winfo, TRACK 10) -> Discard;
>
>management_cl [3] -> Print ("dissoc") -> station_assoc;
>management_cl [4] -> PrintWifi(probe_resp) -> bs;
>management_cl [5] -> PrintWifi(auth) -> station_auth;
>
>wifi_cl [1]
>//-> PrintWifi(data)
>-> Discard;
>
>PokeHandlers(write winfo.channel 1,
> write winfo.bssid 00:03:47:70:89:02,
> write winfo.ssid click-ssid,
>wait 2,
> wait 1,
> write station_assoc.send_assoc_req 1,
> wait 1,
> write station_auth.send_auth_req 1,
> wait 1,
> stop)
>
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>click mailing list
>click at amsterdam.lcs.mit.edu
>https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>
>
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