[ns] Trace file

[bombo-claat]

Hi

Can you tell me more details about your simulation ? Wired or wireless ? which 
type of routi
ng protocol is used in simulation ? and ...

yamachan

[ns] Flooding algorithm

[pallavi kb]

Hi folks,
I am trying to implement broadcasting for wireless nodes
I am hence trying to first set up flooding in wireless scenario.
It would be helpful for me to get started by looking at a flooding algorithm 
for wired nodes.

If any 1 has the tcl script for flooding in wired or wireless scenario. If you 
can share it with me.
That would be of great help

Thanks,
Pall



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Re: [ns] collisions in 802.11 or interference

[Imad Abdeljaouad]

Hi Helber,
Thanks for the prompt response. Actually, I am looking for the code in ns2
(source code) where we can detect collisions. I want to simulate
interference, so I need to get the packets that were received at the same
time on some node. I know interference happens on the physical layer, but I
think it would be much more easier to implement it on the MAC in ns2. So I
am actually looking the source code part that says here is another packet
being transmitted while receiving another packet ( which is collision if
both packets are meant for the same receiver, and interference if both
packets belong to the same (or an adjacent) channel.
Can you help with that ?
cheers,

On Tue, Nov 11, 2008 at 8:35 PM, Helber Wagner <[EMAIL PROTECTED]>wrote:

>   Hi, Imad.
>
>   As far as I understood your question, you should analyze the trace file
> generated
> by your simulations.
>
>   If the MAC trace is enabled in your .tcl file, it will be a row like "D
> ... COL ..."
> indicating the time, the node, the packet and other information about a
> collision
> that has been happened.
>
>   Finally, a simple perl/awk script can retrieve this information from the
> trace file.
>
>   You can find more about mac trace in NS2 over the Internet.
>
>   Good luck.
>
> ---
> Helber Wagner da Silva
> Federal University of Ceará - Brazil
> URL: www.great.ufc.br/~helberhws 
>
>
>
> --
> *De:* Imad Abdeljaouad <[EMAIL PROTECTED]>
> *Para:* "ns-users@isi.edu" 
> *Enviadas:* Terça-feira, 11 de Novembro de 2008 23:17:46
> *Assunto:* [ns] collisions in 802.11 or interference
>
>
> Hello there,
> I am looking for the code where collisions in 802.11 occur so that I know
> which packet(s) collided and for how long they collided? this is a step in
> trying to implement interference!
> thank you!
>
> --
> best regards,
> 
> Imad Abdeljaouad
>
> --
> Novos endereços, o Yahoo! que você conhece. Crie um email 
> novocom
>  a sua cara @
> ymail.com ou @rocketmail.com.
>



-- 
best regards,

Imad Abdeljaouad

[ns] collisions in 802.11 or interference

[Imad Abdeljaouad]

Hello there,
I am looking for the code where collisions in 802.11 occur so that I know
which packet(s) collided and for how long they collided? this is a step in
trying to implement interference!
thank you!

-- 
best regards,

Imad Abdeljaouad

[ns] Packet Arrival rate -- Need Help*

[LiViAn ZaH]

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Hello
 
I want to modify TCP westwood's scheme for packet arrival rate calculation. 
 
Do I need to modify the queue.cc file or i can do that same from westwood.cc ?
 
I m not so sure from which step I can begin --- Can anyone suggest 
some steps?
 
Thanks a lot.in advance.
 
Kindest Regards
LiViaN


  

[ns] Fwd: generate tcp traffic on a run-time

[Tatiana Polishchuk]

Hi,

I have  a trivial configuration of 2 nodes. Node 0 has a TCP agent attached
and Node1 - sink and a tcp 1 traffice between then.
I need  Node 0 to start sending additional sequence of packets - generate
anothor tcp  flow (tcp 2) traffic at some point of my simulation then a
particular condition is satisfied (say, then x number of packets is already
sent). Is there a way to do that? Any ideas will be appreciated.

Tatiana

[ns] Rv: how to synchronize nodes

[Douglas Restrepo]

Hello...


1. Some body can tell me how to synchronize nodes
2. and ...how to put them in sleep mode.

thank you very much


  

[ns] Add another Agent to node with DSR

[Fry Godwin]

Hi All ,

I have developed a wireless protocol and would like to incorporate it with
DSR. According to what i understand it is possible to have multiple agents
at the same node which is selectable through the dmux. I have gone through
ns-lib.tcl , ns-node.tcl , dsr.tcl and ns-mobilenode.tcl . 

When i incorporate the agents on the same node , first i attach DSR through
config node and attach the Agent to the node in my script . It seems that
the dmux object is not set in the dsr agent and gives a segmentation error.

I am a bit confused about the DSR specific node architecture ( which seems
to be different from DSDV etc ). How can i add both DSR and another Agent to
the nodes ?

Hope someone can help me out 
-- 
View this message in context: 
http://www.nabble.com/Add-another-Agent-to-node-with-DSR-tp20445168p20445168.html
Sent from the ns-users mailing list archive at Nabble.com.

[ns] how to send an acknowledgment to the one before the previous hop in dsr SR

[anas]

Dear NS-Users

Please I need to send an acknowledgment to the node which is before the 
previous one through the source rout in DSR, 
just I need to implement a TWOACK approach, 


I mean where should I but the code, and is there a packet format for network 
layer acknowledgments. 

Thanks in Advance 

[ns] How to get Pr(recieved power) in wireless simulation

[Mirza Naveed Baig]

Hi all
 
developing a node location tracking based on signal strength,can any one please 
tell me how to get the recieved power Pr in ns2 simulations.
 
 
Thanks in advance
 
Best Regards


  

Re: [ns] How to send a packet to previous node

[howardgod howardgod]

Deer Teerawat
First, thanks for reply.

My timing for send a packet to previous node is when queue received a packet
I will computer some information in packet's header. And in some
circumstances I will send a packet back to previous hop. Let previous hop
knows the result I computer in current node.

Your method is to add some script in tcl file. But I want to add the method
in c++ file. So that anyone can just using my queue method ,says
Queue/MyQueue, then their topology will apply my queue mechanism.

And I'm facing a big problem. After I computer the packet's information, I
decide to send a packet to previous node. And I can't find any information
in packet's header about previous node's ID. Therefor, even I allocate a new
packet, I can't fill the packet's destination field in common header or ip
header. So the packet won't transmit to previous node.

any way , your method is great. Maybe in other program it will help!!

Howard

2008/11/12 Teerawat Issariyakul <[EMAIL PROTECTED]>

>
> Dear Howard,
>
> Say you have a topology like (n1)-->(n2). Usually, packet will flow from
> (n1) to (n2). When you want to send a packet from (n2) back to (n1), you
> can do the following.
>
> 1. Define an instvar $conn (whose class Connector) of n2
> 2. Put the following in the Tcl simulation script
>
> [$n2 set conn] target $n1
>
> 3. I don't know when you want to send the packet back to n1, but when
> you want to do so, you can simply send the packet to $conn by using
> function recv(p,h)
>
> I hope this will help.
>
> Regards,
> Teerawat
>
>

Re: [ns] How to send a packet to previous node

[Teerawat Issariyakul]

Dear Howard,

Say you have a topology like (n1)-->(n2). Usually, packet will flow from
(n1) to (n2). When you want to send a packet from (n2) back to (n1), you
can do the following.

1. Define an instvar $conn (whose class Connector) of n2
2. Put the following in the Tcl simulation script

[$n2 set conn] target $n1

3. I don't know when you want to send the packet back to n1, but when
you want to do so, you can simply send the packet to $conn by using
function recv(p,h)

I hope this will help.

Regards,
Teerawat

On 11/11/2008, "howardgod howardgod" <[EMAIL PROTECTED]> wrote:

>Deer Teerawat
>I already know how to transmit to node. 1.generate new packet 2.fill common
>header and destination address 3. target->recv(p,h)
>but my problem is that, I can't find out previous hop's address. My purpose
>is to send a packet to previous node in IFQ.
>But when packet received by queue's recv function. I can't find anything
>about previous hop's address in common header, ip header or mac-802_11
>header.
>I also know that in routing object, it can find out the next hop's
>information in routing table. But unfortunately in IFQ can't access routing
>object's functions.
>
>any way, thanks a lot of ur reply.
>
>Howard
>
>2008/11/11 Teerawat Issariyakul <[EMAIL PROTECTED]>
>
>>
>> Dear Howard,
>>
>> The easiest way to transmit from one NsObject (e.g. Nodes) to another is
>> through a (C++ and Tcl) Connector object. A connector has two pointers
>> to NsObjects: target_ and drop_. In the OTcl domain, it uses an OTcl
>> commands "target" and "drop" (followed by the name of the NsObject)
>> to specify its "forwarding object" and "dropping object"
>>
>> A Connector object recieves a Packet "p" through its funciton
>> recv(p,h). Upon receiving a packet, the Connector object forwards the
>> packet "p" to its forwarding object by executing
>> "target_->recv(p,h)". To drop a packet, the function drop(p) of a
>> Connector object is invoked. In this case, the packet is forwarded to
>> the dropping object "*drop_" which is responsible for destroying the
>> packet.
>>
>> To find out more about Connector please refer to chapter 5 in the
>> following book from Springers:
>>
>> If you are a beginning user, you may look at the following book from
>> Springer.
>>
>> T. Issaraiyakul and E. Hossain, "Introduction to Network Simulator
>> NS2", Springer 2008.
>>
>> Here is the link:
>> http://www.springer.com/engineering/signals/book/978-0-387-71759-3
>>
>> You might also find the following slide useful:
>> http://www.ece.ubc.ca/~teerawat/NS2.htm<
>> http://www.ece.ubc.ca/%7Eteerawat/NS2.htm
>>
>> On 11/11/2008, "howardgod howardgod" <[EMAIL PROTECTED]> wrote:
>>
>> >
>> >-- Forwarded message --
>> >From: howardgod howardgod <[EMAIL PROTECTED]>
>> >Date: 2008/11/8
>> >Subject: How to send a packet to previous node
>> >To: ns-users@isi.edu
>> >
>> >
>> >I want to send a packet to previous node. And I don't know how to find
>> >previous node's ID and where to fill the ID.
>> >
>> >I found that in common header, there's a prev_hop and next_hop_. But the
>> >prev_hop_ is NOT the previous node. It's the source.
>> >
>> >So I want to fill previous node's ID to common header's next_hop_.
>> >
>> >And is there anything else I have to fill?
>> >
>> >btw I found a way to do so. Reverse the ip header's src and dst then send
>> >it. but It still do nothing at all.
>> >
>> >HELP ME!! PLZ
>> >
>> >thanks a lot.
>> >
>> > Howard.
>> >
>>

[ns] how to send an acknowledgment to the one before the previous hop in dsr SR

[anas]

 
Dear NS-Users

Please I need to send an acknowledgment to the node which is before the 
previous one through the source rout in DSR, 
just I need to implement a TWOACK approach, 


I mean where should I but the code, and is there a packet format for network 
layer acknowledgments. 

Thanks in Advance 

[ns] ns 2.28 and 2.1b8a Installation problem on Ubuntu 8.04(Unterminated quoted string...)

[pietro.luigi.c]

Hi to everybody,

I'm a student and I need help to install NS2 on Ubuntu 8.04.

I download and I create my ns directory.

I type "./install" and i have the problem shown at the end of this page.

I have the same error installing this two versions(2.28 and 2.1b8a).

I need them! I cannot change them!

Then, on Google I have found the same error but I don't understand how =

this

problem can be resolved. Does it exist some patch for Ubuntu?

I don't want to change kind of Linux(only Ubuntu).

Please help me,

thank u

Pietro

[EMAIL PROTECTED]:~/ns2-28/ns-allinone-2.28/ns-2.28$ ../install

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

* Testing for Cygwin environment

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Cygwin not detected, proceeding with regular install.

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

* Build XGraph-12.1

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

cd: 270: can't cd to ./xgraph-12.1

configure: error: expected an absolute directory name for --prefix: ../

make: *** No targets specified and no makefile found. Stop.

Can not create xgraph; But xgraph is an optional package, continuing...

==0

* Build CWeb



Making cweb

gcc -g -c -o ctangle.o ctangle.c

ctangle.w:75: warning: conflicting types for built-in function =

=91strlen=92

gcc -g -DCWEBINPUTS=3D\"/usr/local/lib/cweb\" -c common.c

common.w:1409: warning: conflicting types for built-in function =

=91strlen=92

gcc -g -o ctangle ctangle.o common.o=20

gcc -g -c -o cweave.o cweave.c

cweave.w:79: warning: conflicting types for built-in function =

=91strlen=92

gcc -g -o cweave cweave.o common.o

ln: creating symbolic link `cweave': File exists

ln: creating symbolic link `ctangle': File exists

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

* Build Stanford GraphBase

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Making sgb

cc -g -I/usr/local/sgb/include test_io.c gb_io.o -o test_io

cc -g -I/usr/local/sgb/include test_graph.c gb_graph.o -o test_graph

cc -g -I/usr/local/sgb/include test_flip.c gb_flip.o -o test_flip

./test_io

OK, the gb_io routines seem to work!

./test_graph

.=

...Hey, I allocated 1000 bytes successfully. =

Terrific...

OK, the gb_graph routines seem to work!

./test_flip

OK, the gb_flip routines seem to work!

make gb_sort.o

make[1]: Entering directory `/home/pietro/ns2-28/ns-allinone-2.28/sgb'

make[1]: `gb_sort.o' is up to date.

make[1]: Leaving directory `/home/pietro/ns2-28/ns-allinone-2.28/sgb'

make lib

make[1]: Entering directory `/home/pietro/ns2-28/ns-allinone-2.28/sgb'

make[1]: Nothing to be done for `lib'.

make[1]: Leaving directory `/home/pietro/ns2-28/ns-allinone-2.28/sgb'

make test_sample

make[1]: Entering directory `/home/pietro/ns2-28/ns-allinone-2.28/sgb'

cc -g -I/usr/local/sgb/include -L. -L/usr/local/lib test_sample.c =

-lgb -lgb -o test_sample

make[1]: Leaving directory `/home/pietro/ns2-28/ns-allinone-2.28/sgb'

./test_sample > sample.out

diff test.gb test.correct

diff sample.out sample.correct

rm -f test.gb sample.out test_io test_io.exe test_graph test_graph.exe =

test_flip test_flip.exe test_sample test_sample.exe

echo "Congratulations --- the tests have all been passed."

Congratulations --- the tests have all been passed.

touch certified

cp: cannot create regular file `../gt-itm/lib/libgb.a': No such file or =

directory

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

* Build GT-ITM

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

sgb lib not found. gt-itm & sgb2ns could not be installed. Continuing..

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=

[ns] send packet from another agent's *.cc file

[Breno Caetano]

Hi ns-users,
I have another doubt. Do i want know that exist a way to send a packet from an 
instance of agent A at *.cc file's Agent B. For example, in a node 1 i have 2 
agents (A and B). So, Agent A may send a packet to Agent C if Agent B receive a 
packet. Exist a way to do this?
thank you for your help.
regards.

 Breno Caetano da Silva
Bacharel em Ciências da Computação - UFPI
Mestrando em Engenharia Elétrica
Escola de Engenharia de São Carlos - EESC
Universidade de São Paulo
Email: [EMAIL PROTECTED]
[EMAIL PROTECTED]
Fone: (+5516) 81449079
(+5516) 33738149



  Novos endereços, o Yahoo! que você conhece. Crie um email novo com a sua 
cara @ymail.com ou @rocketmail.com.
http://br.new.mail.yahoo.com/addresses

Re: [ns] How to disable a mobileNode's movement

[Mubashir Rehmani]

Hi Mathiew

Just include this line in your tcl script to disable motion of mobile nodes:

$ns at 0.0 "$node_($i) random-motion 0";  # disable random motion

Regards

Mubashir Husain Rehmani
Lip6, UPMC, Paris, France.


2008/11/11 Mathiew Moussa <[EMAIL PROTECTED]>

>
> Hello,
>
> If i have an implementation that uses NS2's mobileNode's
> implementation and i decided that without changing the whole class i
> just want to make all the mobileNode NOT move.
>
> How does one do that, do you change the speed to ZERO ???
>
> Thanks,
> Mathiew
>
>
>


-- 
Mubashir Husain Rehmani

Re: [ns] How to send a packet to previous node

[howardgod howardgod]

Deer Teerawat
I already know how to transmit to node. 1.generate new packet 2.fill common
header and destination address 3. target->recv(p,h)
but my problem is that, I can't find out previous hop's address. My purpose
is to send a packet to previous node in IFQ.
But when packet received by queue's recv function. I can't find anything
about previous hop's address in common header, ip header or mac-802_11
header.
I also know that in routing object, it can find out the next hop's
information in routing table. But unfortunately in IFQ can't access routing
object's functions.

any way, thanks a lot of ur reply.

Howard

2008/11/11 Teerawat Issariyakul <[EMAIL PROTECTED]>

>
> Dear Howard,
>
> The easiest way to transmit from one NsObject (e.g. Nodes) to another is
> through a (C++ and Tcl) Connector object. A connector has two pointers
> to NsObjects: target_ and drop_. In the OTcl domain, it uses an OTcl
> commands "target" and "drop" (followed by the name of the NsObject)
> to specify its "forwarding object" and "dropping object"
>
> A Connector object recieves a Packet "p" through its funciton
> recv(p,h). Upon receiving a packet, the Connector object forwards the
> packet "p" to its forwarding object by executing
> "target_->recv(p,h)". To drop a packet, the function drop(p) of a
> Connector object is invoked. In this case, the packet is forwarded to
> the dropping object "*drop_" which is responsible for destroying the
> packet.
>
> To find out more about Connector please refer to chapter 5 in the
> following book from Springers:
>
> If you are a beginning user, you may look at the following book from
> Springer.
>
> T. Issaraiyakul and E. Hossain, "Introduction to Network Simulator
> NS2", Springer 2008.
>
> Here is the link:
> http://www.springer.com/engineering/signals/book/978-0-387-71759-3
>
> You might also find the following slide useful:
> http://www.ece.ubc.ca/~teerawat/NS2.htm<
> http://www.ece.ubc.ca/%7Eteerawat/NS2.htm
>
> On 11/11/2008, "howardgod howardgod" <[EMAIL PROTECTED]> wrote:
>
> >
> >-- Forwarded message --
> >From: howardgod howardgod <[EMAIL PROTECTED]>
> >Date: 2008/11/8
> >Subject: How to send a packet to previous node
> >To: ns-users@isi.edu
> >
> >
> >I want to send a packet to previous node. And I don't know how to find
> >previous node's ID and where to fill the ID.
> >
> >I found that in common header, there's a prev_hop and next_hop_. But the
> >prev_hop_ is NOT the previous node. It's the source.
> >
> >So I want to fill previous node's ID to common header's next_hop_.
> >
> >And is there anything else I have to fill?
> >
> >btw I found a way to do so. Reverse the ip header's src and dst then send
> >it. but It still do nothing at all.
> >
> >HELP ME!! PLZ
> >
> >thanks a lot.
> >
> > Howard.
> >
>

[ns] How to disable a mobileNode's movement

[Mathiew Moussa]

Hello,

If i have an implementation that uses NS2's mobileNode's  
implementation and i decided that without changing the whole class i  
just want to make all the mobileNode NOT move.

How does one do that, do you change the speed to ZERO ???

Thanks,
Mathiew

Re: [ns] How to send a packet to previous node

[Teerawat Issariyakul]

Dear Howard,

The easiest way to transmit from one NsObject (e.g. Nodes) to another is
through a (C++ and Tcl) Connector object. A connector has two pointers
to NsObjects: target_ and drop_. In the OTcl domain, it uses an OTcl
commands "target" and "drop" (followed by the name of the NsObject)
to specify its "forwarding object" and "dropping object"

A Connector object recieves a Packet "p" through its funciton
recv(p,h). Upon receiving a packet, the Connector object forwards the
packet "p" to its forwarding object by executing
"target_->recv(p,h)". To drop a packet, the function drop(p) of a
Connector object is invoked. In this case, the packet is forwarded to
the dropping object "*drop_" which is responsible for destroying the
packet.

To find out more about Connector please refer to chapter 5 in the
following book from Springers:

If you are a beginning user, you may look at the following book from
Springer.

T. Issaraiyakul and E. Hossain, "Introduction to Network Simulator
NS2", Springer 2008.

Here is the link:
http://www.springer.com/engineering/signals/book/978-0-387-71759-3

You might also find the following slide useful:
http://www.ece.ubc.ca/~teerawat/NS2.htm wrote:

>
>-- Forwarded message --
>From: howardgod howardgod <[EMAIL PROTECTED]>
>Date: 2008/11/8
>Subject: How to send a packet to previous node
>To: ns-users@isi.edu
>
>
>I want to send a packet to previous node. And I don't know how to find
>previous node's ID and where to fill the ID.
>
>I found that in common header, there's a prev_hop and next_hop_. But the
>prev_hop_ is NOT the previous node. It's the source.
>
>So I want to fill previous node's ID to common header's next_hop_.
>
>And is there anything else I have to fill?
>
>btw I found a way to do so. Reverse the ip header's src and dst then send
>it. but It still do nothing at all.
>
>HELP ME!! PLZ
>
>thanks a lot.
>
> Howard.
>

[ns] how to change the wireless transmit range

[胡杰]

 
 hi,
I want to change the wireless node's transmit range from 250 to 100, what 
should i do.
thanks.