[Click]
Re: madwifi.stripped works:CUD not PING WLAN0 from other machine
gaurav dawra
openapproject at hotmail.com
Wed Jun 30 19:31:39 EDT 2004
Hi John--
Thanx again for some useful suggestions. Yes! i have two hosts running with
their "click configuration".
HOST ONE-->
[root at localhost click]# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:09:5B:23:FD:2D
inet addr:6.35.253.45 Bcast:6.255.255.255 Mask:255.0.0.0
UP BROADCAST MULTICAST MTU:1650 Metric:1
RX packets:58 errors:0 dropped:0 overruns:0 frame:0
TX packets:140 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:71160 (69.4 Kb) TX bytes:154632 (151.0 Kb)
Interrupt:3 Base address:0x100
[root at localhost click]# ifconfig srcr
srcr Link encap:Ethernet HWaddr 00:01:02:03:04:05
inet addr:5.35.253.45 Bcast:5.255.255.255 Mask:255.0.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
ROuting TABLE ON HOST ONE-->
[root at localhost click]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
153.90.192.0 * 255.255.248.0 U 0 0 0 eth0
5.0.0.0 * 255.0.0.0 U 0 0 0 srcr
6.0.0.0 * 255.0.0.0 U 0 0 0
wlan0
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default epgwy192.msu.mo 0.0.0.0 UG 0 0 0 eth0
----------------------------------------------------------------------------------------
HOST TWO-->
WLAN0--> 6.8.11.132
SRCR-->5.8.11.132
--------------------------------------------------------------------------------------
NOW if i do ping -b on HOST ONE OR On HOST TWO:
[root at localhost click]# ping -b 6.255.255.255
WARNING: pinging broadcast address
PING 6.255.255.255 (6.255.255.255) 56(84) bytes of data.
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
ping: sendmsg: Network is down
BUT IF I DO which is SRCR : And Do : more /click/srcr_es/bcast_stats
[root at localhost click]# ping -b 5.255.255.255
WARNING: pinging broadcast address
PING 5.255.255.255 (5.255.255.255) 56(84) bytes of data.
64 bytes from 5.35.253.45: icmp_seq=1 ttl=64 time=0.055 ms
64 bytes from 5.8.11.168: icmp_seq=1 ttl=64 time=4.15 ms (DUP!)
64 bytes from 5.35.253.45: icmp_seq=2 ttl=64 time=0.025 ms
64 bytes from 5.8.11.168: icmp_seq=2 ttl=64 time=3.12 ms (DUP!)
64 bytes from 5.35.253.45: icmp_seq=3 ttl=64 time=0.028 ms
64 bytes from 5.8.11.168: icmp_seq=3 ttl=64 time=3.17 ms (DUP!)
64 bytes from 5.35.253.45: icmp_seq=4 ttl=64 time=0.030 ms
64 bytes from 5.8.11.168: icmp_seq=4 ttl=64 time=3.22 ms (DUP!)
[root at localhost click]# more /click/srcr_es/bcast_stats
5.8.11.168 00:02:6f:08:0b:a8 period 10000 tau 180000 sent 20 fwd_small 100
rev_small 100 fwd_2 100 rev_2 100 fwd_4 100 rev_4 100 fwd_11 105 rev_11 100
fwd_22 100 rev_22 94 etx 39 last_rx 0.247816
BINGO!! ITS WORKING!!
----------------------------------------------------------------------------------
That is the host which is one hop away from this other one!!
I think that click's "srcr" fetches packets from WLAN0 interface using
"FromHost" and send it back after performing some functions "ToHost(wlan0)".
I will be expanding my network with including many more hosts in the
network. My question is that how will click determine a HOST "multiple" hops
away.
Why i CANNOT see anything coming and going thru Wlan0 interface?( I think
the answer is that srcr is acting as "master" interface , but i believe i
should be able to see packets going and coming thru WLAN0 , when i do
"tcpdump -i wlan0" but i see NOTHING why??)
But if i do tcpdump -i srcr( i see packets going and coming reply ). Is this
is normal behaviour or something is not working right?, i mean why could not
see anything coming and going through WLAN0 as it is TRUE interface thru
which communication is taking place b/t two hosts. Can i print the 802.11
packets on the screen using "print"?
Can I also able to FETCH packets from the eth0 interface on the HOST . Well
if i look into "roofnet" deployment. Any host can access internet using SOME
GATWAYS. Do i have to enable ONE HOST as GATEWAY to do that. Will CLICK
configuration also fetch packets from ETH0 SIDE?
Thanx again for all help!!
Gaurav
>From: John Bicket <jbicket at amsterdam.lcs.mit.edu>
>To: gaurav dawra <openapproject at hotmail.com>
>CC: click at amsterdam.lcs.mit.edu
>Subject: Re: madwifi.stripped works:CUD not PING WLAN0 from other machine
>Date: Tue, 29 Jun 2004 21:23:16 -0400
>
>
>I am assuming that you have both machines running their own click
>configs; Is there anything present in /click/srcr_es/bcast_stats
>on either machine?
>That should show nodes within one-hop.
>
>What happens when you run "ping -b 6.255.255.255"?
>
>
>--john
>
>
>gaurav dawra [openapproject at hotmail.com] wrote:
> >Hi John--
> >
> >Thanx for the help it is working , i mean to say that the different
> >interfaces including WLAN0 and srcr are up and i can ping to them FROM
>the
> >same machine(Just to see). But i cannot able to PING the wireless
>Interface
> >from some OTHER machine.
> >
> >Machine with madwifiand roofnet configuration :
> >
> >wlan0:
> >[root at localhost root]# ifconfig wlan0
> >wlan0 Link encap:Ethernet HWaddr 00:09:5B:23:FD:2D
> > inet addr:6.35.253.45 Bcast:6.255.255.255 Mask:255.0.0.0
> > UP BROADCAST MULTICAST MTU:1650 Metric:1
> > RX packets:13 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:1300 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:0
> > RX bytes:182 (182.0 b) TX bytes:1581432 (1.5 Mb)
> > Interrupt:3 Base address:0x100
> >[root at localhost root]# ifconfig srcr
> >srcr Link encap:Ethernet HWaddr 00:01:02:03:04:05
> > inet addr:5.35.253.45 Bcast:5.255.255.255 Mask:255.0.0.0
> > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:100
> > RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
> >
> >---------------------------------------------------------------------------
> >
> >Other NODE has interface :
> >
> >wlan0 and eth0:
> >
> >wlan0:
> >inetaddr: 6.35.253.1( i did it statically by modifying ifcfg-wlan0 file),
> >and netmask: 255.0.0.0
> >
> >Same as the above machine. Everything seems to be fine with route tables
>on
> >both machine.
> >
> >I reached the same stage earlier also by doing whole roofnet
>configuration
> >NOT by your suggested steps. BUt i am kind of struck here. HOW DO I TEST
> >THAT MY WLAN0 and SRCR interface is working, please let me know.
> >
> >Thanx for help anyways,
> >
> >Gaurav
> >
> >
> >>From: John Bicket <jbicket at amsterdam.lcs.mit.edu>
> >>To: gaurav dawra <openapproject at hotmail.com>
> >>CC: click at amsterdam.lcs.mit.edu
> >>Subject: Re: [Click] Simple Authenticator:"Click" element Class
> >>Date: Tue, 29 Jun 2004 13:52:35 -0400
> >>
> >>Hi Gaurav,
> >>
> >>There were a few changes that I just checked in.
> >>Try a cvs up -dP and recompile and then try again.
> >>
> >>--john
> >>
> >>
> >>gaurav dawra [openapproject at hotmail.com] wrote:
> >>>Thanx for the help John!!
> >>>
> >>>Here is one error which i cud not able to understand. FIRST i cud not
> >>able
> >>>to find the prism2_param script , SO used being provided with "roofnet
> >>>distribution" in /home/roofnet/bin/ made a small change to script in
> >>line
> >>>:85
> >>>
> >>>if ($dev =~ /wlan/) {
> >>># JUST GAVE THE PATH TO THE prism2_param directory
> >>> system "/home/roofnet/bin/prism2_param $dev pseudo_ibss 1"; # line
>85
> >>>
> >>> system "iwconfig $dev essid $ssid";
> >>> system "iwconfig $dev rts off";
> >>> system "iwconfig $dev retries 8";
> >>> #system "iwconfig $dev txpower 23";
> >>># HOSTAP does not support SET TX POWER MODE
> >>>}
> >>>
> >>>
> >>>EXECUTED THIS COMMAND:
> >>>[root at openap conf]# ./gen_config_roofnet.pl --dev "wlan0" >
>/click/config
> >>>[root at openap conf]#
> >>>DONE but an ERROR
> >>>
> >>>[root at openap conf]# more /click/errors
> >>>line 3: While configuring 'rates :: AvailableRates':
> >>> error param DEFAULT 2 4 11 22: must start with ethernet address
> >>>Router could not be initialized!
> >>>---------------------------------------------------------------------
> >>>'dmesg' gives me this :
> >>>wifi0: LinkStatus=2 (Disconnected)
> >>>wifi0: LinkStatus: BSSID=00:00:00:00:00:00
> >>>wifi0: LinkStatus=2 (Disconnected)
> >>>wifi0: LinkStatus: BSSID=00:00:00:00:00:00
> >>>line 3: While configuring 'rates :: AvailableRates':
> >>> error param DEFAULT 2 4 11 22: must start with ethernet address
> >>>Router could not be initialized!
> >>>chatter: txf :: WifiTXFeedback: couldn't cleanup - 1886544160 !!!
> >>>----------------------------------------------------------------------
> >>>
> >>>Any Ideas? I have never seen this error before. Is your script giving
> >>this
> >>>error?
> >>>
> >>>Thanx,
> >>>
> >>>Gaurav
> >>>
> >>>
> >>>
> >>>>From: John Bicket <jbicket at amsterdam.lcs.mit.edu>
> >>>>To: gaurav dawra <openapproject at hotmail.com>
> >>>>CC: click at amsterdam.lcs.mit.edu
> >>>>Subject: Re: [Click] Simple Authenticator:"Click" element Class
> >>>>Date: Tue, 29 Jun 2004 11:34:03 -0400
> >>>>
> >>>>
> >>>>Try "gen_config_roofnet.pl" instead of "get_config_roofnet". There
> >>>>was a typo in the instructions.
> >>>>
> >>>>
> >>>>--john
> >>>>
> >>>>gaurav dawra [openapproject at hotmail.com] wrote:
> >>>>>Thanx John For the Quick Reply.
> >>>>>
> >>>>>Here is the command which i executed, i should have mentioned the
> >>command
> >>>>>and error at first place.
> >>>>>
> >>>>>/root/click/conf/get_config_roofnet --wlan0 "wlan0" >/click/config
> >>>>>bash: /root/click/conf/get_config_roofnet: No such file or directory
> >>>>>
> >>>>>No i am using hostap_cs : here is output of my lsmod:
> >>>>>
> >>>>>hostap_cs 51188 0 (unused)
> >>>>>hostap 111048 0 [hostap_cs]
> >>>>>sr_mod 18136 0 (autoclean)
> >>>>>input 5728 0 (autoclean)
> >>>>>lp 9092 0 (autoclean)
> >>>>>parport 37088 0 (autoclean) [lp]
> >>>>>ds 8264 1 [hostap_cs]
> >>>>>i82365 38016 1
> >>>>>
> >>>>>JUST SHOWING One those matters.
> >>>>>
> >>>>>I USED command "gmake" to do compile the CLICK MODULES:
> >>>>>
> >>>>>Gaurav
> >>>>>
> >>>>>
> >>>>>
> >>>>>>From: John Bicket <jbicket at amsterdam.lcs.mit.edu>
> >>>>>>To: gaurav dawra <openapproject at hotmail.com>
> >>>>>>CC: click at amsterdam.lcs.mit.edu
> >>>>>>Subject: Re: [Click] Simple Authenticator:"Click" element Class
> >>>>>>Date: Tue, 29 Jun 2004 11:09:29 -0400
> >>>>>>
> >>>>>>Try replacing "dev" with wlan0, if that device is present after you
> >>>>>>modprobe hostap_cs. (if you are using a pci card, you might need to
> >>>>>>modprobe hostap_pci instead).
> >>>>>>
> >>>>>>--john
> >>>>>>
> >>>>>>gaurav dawra [openapproject at hotmail.com] wrote:
> >>>>>>>Hi john
> >>>>>>>
> >>>>>>>Today i am trying to compile the LINUX MODULE. Again the problem in
> >>the
> >>>>>>>last step, yes ! there is a perl file. gen_config_roofnet.pl, but
> >>after
> >>>>>>>compiling the whole click module with
> >>>>>>>
> >>>>>>>./configure --enable-wifi --with-wifi=/home/madwifi.stripped/
> >>>>>>>--enable-linuxmodule --with-linux=/usr/src/linux-2.4.20roof
> >>>>>>>--disable-adaptive --disable-userlevel
> >>>>>>>
> >>>>>>>modprobe hostap_cs
> >>>>>>>modprobe ath_pci ( I BELIEVE I DO NOT REQUIRE THIS, I am NOT using
> >>>>>>atheros
> >>>>>>>based cardbus chipset)
> >>>>>>>/sbin/insmod CLICKDIR/linuxmodule/proclikefs.o
> >>>>>>>/sbin/insmod CLICKDIR/linuxmodule/click.o
> >>>>>>>mkdir -p /click
> >>>>>>>mount -n -t click none /click
> >>>>>>>*******CLICKDIR/conf/get_config_roofnet --dev "dev" >
> >>>>/click/config******
> >>>>>>>
> >>>>>>>IT DID NOT AUTOMATICALLY GENERATED get_config_roofnet. So again the
> >>>>LAST
> >>>>>>>STEP of your instructions is not complete. Am i doing wrong
> >>somewhere?
> >>>>>>>
> >>>>>>>Are we supposed to generate file by running perl script or will it
> >>>>>>generate
> >>>>>>>using "gmake" command after ./configure for CLICK MODULES. Please
>let
> >>>>me
> >>>>>>>know. I will await for your response.
> >>>>>>>
> >>>>>>>Thanx,
> >>>>>>>
> >>>>>>>Gaurav
> >>>>>>>
> >>>>>>>>From: John Bicket <jbicket at amsterdam.lcs.mit.edu>
> >>>>>>>>To: gaurav dawra <openapproject at hotmail.com>
> >>>>>>>>Subject: Re: [Click] Simple Authenticator:"Click" element Class
> >>>>>>>>Date: Mon, 28 Jun 2004 16:26:31 -0400
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>Hi Gaurav,
> >>>>>>>>
> >>>>>>>>I have updated instructions at
> >>>>>>>>http://www.pdos.lcs.mit.edu/~jbicket/madwifi.stripped/
> >>>>>>>>about building for roofnet - please let me know if you have
>trouble
> >>>>>>>>with them.
> >>>>>>>>
> >>>>>>>>--john
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>John Bicket [jbicket at amsterdam.lcs.mit.edu] wrote:
> >>>>>>>>>Hi Guarav,
> >>>>>>>>>
> >>>>>>>>>SimpleAuthenticator is a click element in the elements/wifi/ap
> >>>>>>>>>directory. You probably don't want to be using it with a wlan
> >>device,
> >>>>>>>>>it only really works with Atheros based chipsets.
> >>>>>>>>>
> >>>>>>>>>I am currently working on a howto for building a roofnet
> >>>>configuration,
> >>>>>>>>>I will be done in a day or two and will post it.
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>--john
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>gaurav dawra [openapproject at hotmail.com] wrote:
> >>>>>>>>>>Hi
> >>>>>>>>>>
> >>>>>>>>>>I am have question regarding the element class
> >>>>"SimpleAuthenticator",
> >>>>>>>>what
> >>>>>>>>>>is the functionality. Is it defined in the click software or is
>it
> >>>>>>some
> >>>>>>>>>>"user defined". This might be a question which is not very
> >>>>appropiate
> >>>>>>>>but i
> >>>>>>>>>>just need to know is it being defined in the "click software" or
> >>>>not.
> >>>>>>>>>>
> >>>>>>>>>>I am using a "config" file from roofnet group(uses CLICK as
> >>routing
> >>>>>>>>>>software) which defines this element class in their
>configuration
> >>>>>>file.
> >>>>>>>>>>
> >>>>>>>>>>pr :: ProbeResponder(INTERVAL 1000,
> >>>>>>>>>> SSID "madwifi",
> >>>>>>>>>> BSSID $mac,
> >>>>>>>>>> CHANNEL 3);
> >>>>>>>>>>
> >>>>>>>>>> auth :: SimpleAuthenticator(BSSID $mac);
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>> beacon_source -> output;
> >>>>>>>>>> auth -> output;
> >>>>>>>>>> ar -> output;
> >>>>>>>>>> pr -> output;
> >>>>>>>>>>
> >>>>>>>>>> management_cl [6] -> Print ("auth") -> auth;
> >>>>>>>>>>
> >>>>>>>>>>--------------------------------------------------------------------------------------------
> >>>>>>>>>>
> >>>>>>>>>>But if i delete these lines and install click using
> >>"click-install"
> >>>>,
> >>>>>>>>dmesg
> >>>>>>>>>>gives me this error.
> >>>>>>>>>>
> >>>>>>>>>>Dead loop on virtual device wlan0, fix it urgently!
> >>>>>>>>>>Dead loop on virtual device wlan0, fix it urgently!
> >>>>>>>>>>---------------------------------------------------------------------------------------------
> >>>>>>>>>>
> >>>>>>>>>>I searched hours on internet to fine relevance of this error,
>if
> >>>>any
> >>>>>>>>one
> >>>>>>>>>>came accross same error please suggest what is going wrong.
> >>>>>>>>>>
> >>>>>>>>>>[root at localhost roofnet]# iwconfig wlan0
> >>>>>>>>>>Warning: Driver for device wlan0 has been compiled with version
>14
> >>>>>>>>>>of Wireless Extension, while this program is using version 15.
> >>>>>>>>>>Some things may be broken...
> >>>>>>>>>>
> >>>>>>>>>>wlan0 IEEE 802.11b ESSID:"roofnet" Nickname:"localhost"
> >>>>>>>>>> Mode:Ad-Hoc Frequency:2.422GHz Cell:
>00:00:00:00:00:00
> >>>>>>>>>> Bit Rate:2Mb/s Sensitivity=1/3
> >>>>>>>>>> Retry limit:8 RTS thr:off Fragment thr:off
> >>>>>>>>>> Encryption key:off
> >>>>>>>>>> Power Management:off
> >>>>>>>>>> Link Quality:0/70 Signal level:-73 dBm Noise
>level:-73
> >>>>dBm
> >>>>>>>>>> Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid
>frag:0
> >>>>>>>>>> Tx excessive retries:0 Invalid misc:2 Missed
>beacon:0
> >>>>>>>>>>
> >>>>>>>>>>-----------------------------------------------------------------------------------------------
> >>>>>>>>>>I am loading this "configuration" file from roofnet to
>understand
> >>>>>>better
> >>>>>>>>>>the functionality of "click" routing software. I also tried few
> >>>>>>>>>>configurations file in CLICKDIR/conf/ directory.They helped to
> >>>>>>>>understand
> >>>>>>>>>>the click.Thanx!!
> >>>>>>>>>>
> >>>>>>>>>>I am thinking of modifying this configuration file to work for
>me.
> >>>>But
> >>>>>>i
> >>>>>>>>>>need to understand basic functionality of click router. I read
> >>docs
> >>>>>>on
> >>>>>>>>>>click router project page and thesis presented by eddie and
> >>others.
> >>>>I
> >>>>>>>>>>understand some asects of this configurations file but need some
> >>>>help
> >>>>>>>>with
> >>>>>>>>>>this one to understand it better. IF needed i can copy the whole
> >>>>>>>>>>configuration file which i am using.
> >>>>>>>>>>
> >>>>>>>>>>Please suggest as it will help to write my own configuration
>file
> >>>>for
> >>>>>>>>click
> >>>>>>>>>>router.
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>Thanx,
> >>>>>>>>>>Gaurav
> >>>>>>>>>>
> >>>>>>>>>>_________________________________________________________________
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> >>>>>>>>>>
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> >>>>>>>>>>https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >>>>>>>>>_______________________________________________
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