[ns] How to use a patch file in ns-2 to make changes.
Hello, I have got a patch file as ns2-hls-patch.tar but I don't understand how to use it in ns-2.29, can anyone help me.. Thanks in advance - Yahoo! India Answers: Share what you know. Learn something new Click here Send free SMS to your Friends on Mobile from your Yahoo! Messenger Download now
[ns] TCP/FullTcp/Newreno Vs. TCP/Newreno
Hi all, I was using FullTcp/Newreno agent and found that it behaved differently from the normal TCP/Newreno in terms of congestion control. I am really not sure about what is causing the difference. This difference is especially obvious when the number of flows sharing a bottleneck link becomes high - the FullTcp flows were performing much better in terms of the throughputs achieved. Anybody has any clue as to why this is happening? Thanks, Sid
Re: [ns] uable to add a new protocol "ping" given in ns-tutorial
Hi, Which version of NS are you using. The ping protocol is also inbuilt in NS and the code for the same exists at ns-2.2*/apps/ping.h and ns-2.2*/apps/ping.cc. So are u recompiling the ns with new ping after doing some changes? neways try using the syntax hdr_ip* hdrip = HDR_IP(pkt); Also if it still doesnt work, post the entire error message that you obtain while recompiling the NS Regards Sanjay Raghani Mtech II CSE IIT - Roorkee
[ns] help with TraceGraph
Hi all! I have some problem with Tracegraph, I have simulated a wired-cum-wireless scenario, and i tried to use Tracegraph but i had the following error: "Maximal number of lines <1000> has been processed! Error cannot read the file! Undefined function or variable 'pliktemp' Somebody has already met this error?, please help with this! Thanks a lot for helpful information Best regards, Armelle _ Retrouvez tout en un clin d'oeil avec la barre d'outil MSN Search ! http://desktop.msn.fr/
[ns] GEA Problems / Tutorial?
I am having some difficulty building and using GEA with Red Hat Enterprise Linux. This is what I have done thus far (please let me know if there is a bad step in here): 1) I downloaded ns-2.28, the 2.28-4 patch, and libgea1.1 from http://bode.cs.uni-magdeburg.de/~aherms/debian/dists/sid/ns2/source/ 2) I applied the patch 3) I copied the contents of the libgea1.1 package on top of the gea directory in ns-2.28 4) I ran automake -ac in the gea directory, and then copied libtool into the gea directory. (Note: Step 5 wouldn't succeed without this step). 5) I then built the contents of gea using ./configure, make, make install 6) I tried to build the contents of ns-2.28 (parent directory) with ./configure, make. 7) I get the following error when I performed make: make: *** No rule to make target `gea/gea.cc', needed by `gea/gea.o'. Can anyone see what I'm doing wrong? Also, I would greatly appreciate any documentation that would help a new user learn & use gea. Perhaps a tutorial? Thanks in advance! Jeff
[ns] R: Problem with emulation
Dear Svilen, You are totally right! Using just one interface, without filtering mac addresses, the simulator enters in a loop. Now it goes well! Thx a lot for the link, my next step will be integrate some UML with ns-2! Have a nice day, Paolo Carpo
Re: [ns] simple-wireless.tcl is not running on ns2.28
* couldn't read file "../mobility/scene/cbr-3-test"
no such file or directory
Probably, you changed the path of the script ns simple-wireless.tcl so as to
run it. Thus, it cant find the path for the mobility script /cbr-3-test
You have to open the script ns simple-wireless.tcl and change the
correspondig paths so as to represent the new relative path of the
/cbr-3-test.
Dimitris Antonellis
Message: 4
> Date: 14 Jun 2006 07:15:38 -
> From: "Srirupa Dasgupta" <[EMAIL PROTECTED]>
> Subject: [ns] simple-wireless.tcl is not running on ns2.28
> To: ns-users@ISI.EDU
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset=iso-8859-1
>
>
>
>
> Dear friend,
> please help me to run wireless scripts on ns2 .
> i am typing the following command:
> ns simple-wireless.tcl
> the error messafe that i am getting is as follows:
> num_nodes is set 3
> warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
> INITIALIZE THE LIST xListHead
> Loading connection pattern...
> couldn't read file "../mobility/scene/cbr-3-test": no such file or
> directory
> while executing
> "source.orig ../mobility/scene/cbr-3-test"
> ("uplevel" body line 1)
> invoked from within
> "uplevel source.orig [list $fileName]"
> invoked from within
> "if [$instance_ is_http_url $fileName] {
> set buffer [$instance_ read_url $fileName]
> uplevel eval $buffer
> } else {
> uplevel source.orig [list $fileName]
> ..."
> (procedure "source" line 8)
> invoked from within
> "source $val(cp)"
> (file "wireless1.tcl" line 121)
> what is this?
> please help
>
>
[ns] how to complete the Makefile for a new protocol?
Hello ns users! I'm working on the implementation of a new routing protocol and i want to modify the code for the DSDV protocol. I have made some changes and now i want to edit the Makefile by adding the object files inside the OBJ_CC variable. The problem is i can't find the OBJ_CC variable i have ns-2.29 on Mandriva. How can i go on wih my work? Please tell me how to edit the Makefile. Any help will be apreciated. Thank you in advance! Regards, Alexandra Alexandra Cioroianu __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
[ns] Implementing malicious behaviour in ad-hoc nodes
Hi all, I want to be able to inspect and alter packets generated from a particular ad hoc routing protocol, like AODV, and also be able to interact with the routing agent for a malicious library I'm thinking of implementing for the simulation of the effect of malicious activity on large ad-hoc networks. I'm just wondering if anyone can give me advice on the best way of going about this - I've designed a new 'Behaviour' class: each routing agent has a Behaviour object attached onto them but Im just wondering how I would go about implementing certain attacks, for example a RREQ flood attack. I could set a variable in the Behaviour object within the node itself, and get the AODV code to read whether a variable, like 'toFlood' in the Behaviour class is set to true or false to queue up RREQ's for each time slot, but Im not sure whether this is the most efficient way of doing things. Especially when you consider other attacks, for example altering routing packets as they go through a particular node, I'd really like to be able to alter them on the fly, by reading a packet, getting its type (i.e. RREQ) and altering it's contents! Certain attacks are easily implemented with the current Behaviour class, like dropping RREQs, we simply get the AODV routing agent to read the Behaviour 'isDropping' variable, and if its true then we simply return out of the 'send' procedure without forwarding, but this means the code is dependant on the actual routing protocol in use and I would really like to make it as independent as possible! Any help/feedback would be really appreciated! Many Thanks Paul Kiddie 1st Year PhD Electronic & Electrical Engineering School of Electronic, Electrical & Computer Engineering, University Of Birmingham, Edgbaston, Birmingham, B15 2TT -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 15 June 2006 01:00 To: ns-users@ISI.EDU Subject: Ns-users Digest, Vol 30, Issue 15 Send Ns-users mailing list submissions to ns-users@isi.edu To subscribe or unsubscribe via the World Wide Web, visit http://mailman.isi.edu/mailman/listinfo/ns-users or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Ns-users digest..." Today's Topics: 1. EURANE - handover ? (Anoop Ramamurthy) 2. Re: help (lakshmi muddana) 3. Re: persons well-versed in ns-2 (lakshmi muddana) 4. simple-wireless.tcl is not running on ns2.28 (Srirupa Dasgupta) 5. simple-wireless.tcl is not running on ns2.28 (Srirupa Dasgupta) 6. what's "scaling factor" in inet (Htira Walid) 7. termination of transmission (erhan gülhan) 8. termination of transmission (erhan gülhan) 9. jitter in a new MANET routing protocol (Alexandra Cioroianu) 10. Re: jitter in a new MANET routing protocol (Francisco J. Ros) 11. Re: simple-wireless.tcl is not running on ns2.28 (Pedro Vale Estrela) 12. Problem with emulation ([EMAIL PROTECTED]) 13. Re: Clearing a queue at a node in ns-2 (Pedro Vale Estrela) -- Message: 1 Date: Wed, 14 Jun 2006 08:59:41 +0530 From: Anoop Ramamurthy <[EMAIL PROTECTED]> Subject: [ns] EURANE - handover ? To: ns-users@ISI.EDU Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="US-ASCII" Hi ppl , Its mentioned that eurane doesnt support handover functionality. I still want to know if there are some ways to simulate handover scenario in umts ? __ -- Message: 2 Date: Wed, 14 Jun 2006 07:51:12 +0100 (BST) From: lakshmi muddana <[EMAIL PROTECTED]> Subject: Re: [ns] help To: ns-users@ISI.EDU Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=iso-8859-1 dear all, somebody kindly help me to add the new protocol PING given in the tutorial. problem faced is : after creating ping.h & ping.cc and nessary changes when given "make " at prompt, it says no destinations. Send instant messages to your online friends http://in.messenger.yahoo.com Stay connected with your friends even when away from PC. Link: http://in.mobile.yahoo.com/new/messenger/ -- Message: 3 Date: Wed, 14 Jun 2006 08:06:18 +0100 (BST) From: lakshmi muddana <[EMAIL PROTECTED]> Subject: Re: [ns] persons well-versed in ns-2 To: ns-users@ISI.EDU Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=iso-8859-1 dear all, i would like to know the persons well-versed in ns-2 in Andhra Pradesh. Send instant messages to your online friends http://in.messenger.yahoo.com Stay connected with your friends even when away from PC. Link: http://in.mobile.yahoo
[ns] unable to add a new protocol "ping" given in ns-tutorial
hello everyone, i downloaded ping.h & ping.cc given in the tutorial. an error is encountered during compilation. the error is : in the recv() function of ping.cc, it says, " off_ip_ " is undefined. Send instant messages to your online friends http://in.messenger.yahoo.com Stay connected with your friends even when away from PC. Link: http://in.mobile.yahoo.com/new/messenger/
[ns] uable to add a new protocol "ping" given in ns-tutorial
hello everyone, i downloaded ping.h & ping.cc given in the tutorial. an error is encountered during compilation. the error is : in the recv() function of ping.cc, it says, " off_ip_ " is undefined. Send instant messages to your online friends http://in.messenger.yahoo.com Stay connected with your friends even when away from PC. Link: http://in.mobile.yahoo.com/new/messenger/
Re: [ns] Problem with emulation
Hello Paolo,
[EMAIL PROTECTED] wrote:
>Hi list!
>
>I'm having some problems using the emulation examples.
>I try to use ns-2 as a forwarder: real host A send a ping to real host B,
>passing through the simulator, C. After adding the correct route to A and B to
>use C as a gateway, I use this script (because the one with ns-2 doesn't work
>at all)
>
># Inside the simulator
>#
># node(5)
># / \
># / \
># node(2) node(1)
>
>
>set ns [new Simulator]
>$ns use-scheduler RealTime
>
>set f [open out.tr w]
>$ns trace-all $f
>set nf [open out.nam w]
>$ns namtrace-all $nf
>
># Create the nodes
>set n1 [$ns node]; #reading from real network
>set n2 [$ns node]; #writing to the real network
>set n5 [$ns node]; #nothing important
>
>
># Configure the entry node
>set bpf1 [new Network/Pcap/Live]; # Create the bpf
>set dev1 [$bpf1 open readonly eth0]; # Open the device
>$bpf1 filter "icmp and host 192.168.0.3";# put the filter
>set tap1 [new Agent/Tap]; # Create the Tap Agent
>$tap1 network $bpf1; # Connect bpf to Tap Agent
>$ns attach-agent $n1 $tap1; # Attach Tap Agent to the node(1)
>
># Configure the exit node
>set ipnet [new Network/IP]; # Create a Network agent
>$ipnet open writeonly
>set tap2 [new Agent/Tap]; # Create a Tap Agent
>$tap2 network $ipnet; # Connect network agent to tap agent
>$ns attach-agent $n2 $tap2; # Attach agent to the node.
>
>
># Connect the agents.
>$ns simplex-connect $tap1 $tap2
>
>#Just for debug
>puts "tap1: $tap1"
>puts "tap2: $tap2"
>
>
>puts "Node1: $n1"
>puts "Node2: $n2"
>puts "Node5: $n5"
>
>puts "bpf1: $bpf1"
>puts "ipnet: $ipnet"
>
>
># Setup connections between the nodes
>$ns simplex-link $n1 $n2 10Mb 5ms DropTail
>$ns simplex-link $n5 $n2 10Mb 5ms DropTail
>
>
>$ns at 10 "finish"
>
>proc finish {} {
>global ns f nf
>$ns flush-trace
>close $f
>close $nf
>exit 0
>}
>
>$ns run
>
>
>If I run this script, the packets are forwarded, but the simulator begins to
>create a very big traffic of dup packet:
>...
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>TapAgent(_o24): sent packet (sz: 60)
>4.835407: Tap(_o21): recvpkt, cc:60
>4.835407: Tap(_o21): recvpkt, writing to target: _o13
>4.835578: Tap(_o21): recvpkt, cc:60
>4.835578: Tap(_o21): recvpkt, writing to target: _o13
>4.835698: Tap(_o21): recvpkt, cc:60
>4.835698: Tap(_o21): recvpkt, writing to target: _o13
>4.835807: Tap(_o21): recvpkt, cc:60
>4.835807: Tap(_o21): recvpkt, writing to target: _o13
>4.835976: Tap(_o21): recvpkt, cc:60
>4.835976: Tap(_o21): recvpkt, writing to target: _o13
>4.836086: Tap(_o21): recvpkt, cc:60
>...
>
>I really don't understand why.
>
Is it possible that your
Network/IP
object wites packets back to the eth0 interface? In this case you read a
packet from eth0, pass it through ns-2, then write it back to eth0 with
the $ipnet. But the
Network/Pcap/Live
object reads this packet again, and this results in a endless
duplication cycle.
Another reason for duplication in the real network might be if you have
forgotten to disable the routing on your ns-2 host.
> And if I use IPTap for the 2 tap I get:
>
>
>IPTapAgent(_o21): sendpkt called while in read-only mode!
>0.770541: IPTapAgent(_o21): recvpkt, cc:1
>
>
>
If you mean
Network/Pcap/Live
this object can not write packets back to the real network. Under linux
it can only read.
You might be interested in an extension to ns-2-emulation to read/write
packets using linux raw sockets.
http://ivs.cs.uni-magdeburg.de/EuK/forschung/projekte/nse/index.shtml
>Thank you very much for any idea/suggestion/tip.
>
>Paolo Carpo
>
>P.S. Sorry for the poor english
>
>
>
>
Best regards,
Svilen
--
+--+
| M.Sc. Svilen Ivanov |
| Institute for Distributed Systems (IVS) |
| Otto-von-Guericke University - Magdeburg |
| http://ivs.cs.uni-magdeburg.de/~svilen/ |
+--+
[ns] Need for help (nam & ns)
Hello, I used inet to generate internet topology. please, can i visualize this internet topology witn nam ? if it's ture, how can i do it ? Thanks -- ___ Search for businesses by name, location, or phone number. -Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.asp?SRC=lycos10
