Sending Custom Packets using sockets

[srinivas poram]

Hi,
I want to send my custom packet like hello among the simulated nodes. for
this i have created a packet like below

Ptr<Packet>pkt=Create<Packet>(reinterpret_cast<uint8_t *>("hello"),5);
i can able to check the payload by
cout<<*pkt<<endl; and contents of the packet by
cout<<pkt->PeekData()<<endl;
I came to know that i can able to send these packets among simulated nodes
by using sockets.So i created socket by
Ptr<Socket>socket;
why is it giving error when i use
socket->Bind(InetSocketAddress(80));

and error is being displayed when i'm using udpFactory if i want to create
a socket as below

Ptr<Socket>socket=udpFactory->CreateSocket();

any help ..please

[srinivas poram]

Hi,
I could able tomake a packet and socket also. And i couldable to send the
packet the packet particular destination node by using
socket->SendTo(pkt,0,InetSocketAddress("Destination Address",destination
port). But when i'm reading the pcap file generated by simulator it is
showing that packet is sent only once. How can i make my simulator to take
my packet(created by me) and send it regularly with some interval. also how
can i send it in multicast and broadcast mode.

Post by srinivas poram
Hi,
I want to send my custom packet like hello among the simulated nodes. for
this i have created a packet like below
Ptr<Packet>pkt=Create<Packet>(reinterpret_cast<uint8_t *>("hello"),5);
i can able to check the payload by
cout<<*pkt<<endl; and contents of the packet by
cout<<pkt->PeekData()<<endl;
I came to know that i can able to send these packets among simulated nodes
by using sockets.So i created socket by
Ptr<Socket>socket;
why is it giving error when i use
socket->Bind(InetSocketAddress(80));
and error is being displayed when i'm using udpFactory if i want to create
a socket as below
Ptr<Socket>socket=udpFactory->CreateSocket();
any help ..please

[William Bellia]

Hey,

In order to schedule re transmission of packets, you can use the following
code:
if (m_running)
{
Time tNext (Seconds (m_packetSize * 8 / static_cast<double>
(m_dataRate.GetBitRate ())));
m_sendEvent = Simulator::Schedule (tNext, &MyApp::SendPacket, this);
}

where the variant on how fast the transmission takes place is the bit rate.

This code was taken from the example section in ns3 source.

Will

Post by srinivas poram
Hi,
I could able tomake a packet and socket also. And i couldable to send the
packet the packet particular destination node by using
socket->SendTo(pkt,0,InetSocketAddress("Destination Address",destination
port). But when i'm reading the pcap file generated by simulator it is
showing that packet is sent only once. How can i make my simulator to take
my packet(created by me) and send it regularly with some interval. also how
can i send it in multicast and broadcast mode.

Post by srinivas poram
Hi,
I want to send my custom packet like hello among the simulated nodes. for
this i have created a packet like below
Ptr<Packet>pkt=Create<Packet>(**reinterpret_cast<uint8_t *>("hello"),5);
i can able to check the payload by
cout<<*pkt<<endl; and contents of the packet by
cout<<pkt->PeekData()<<endl;
I came to know that i can able to send these packets among simulated
nodes by using sockets.So i created socket by
Ptr<Socket>socket;
why is it giving error when i use
socket->Bind(**InetSocketAddress(80));
and error is being displayed when i'm using udpFactory if i want to
create a socket as below
Ptr<Socket>socket=udpFactory->**CreateSocket();
any help ..please
--

You received this message because you are subscribed to the Google Groups
"ns-3-users" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/ns-3-users/-/QbxlV7VQqrYJ.
To unsubscribe from this group, send email to
For more options, visit this group at
http://groups.google.com/group/ns-3-users?hl=en.

[srinivas poram]

How can i make simulator to consider my packet/custom packet instead of
generalized packets created by:

OnOffHelper
onoff("ns3::UdpSocketFactory",Address(InetSocketAddress(Ipv4Address("10. .
."),port)));


Thanks

Post by srinivas poram
Hi,
I want to send my custom packet like hello among the simulated nodes. for
this i have created a packet like below
Ptr<Packet>pkt=Create<Packet>(reinterpret_cast<uint8_t *>("hello"),5);
i can able to check the payload by
cout<<*pkt<<endl; and contents of the packet by
cout<<pkt->PeekData()<<endl;
I came to know that i can able to send these packets among simulated nodes
by using sockets.So i created socket by
Ptr<Socket>socket;
why is it giving error when i use
socket->Bind(InetSocketAddress(80));
and error is being displayed when i'm using udpFactory if i want to create
a socket as below
Ptr<Socket>socket=udpFactory->CreateSocket();
any help ..please

[Munde Pravin]

Greetings Sir,
I tried :




*Ptr<Packet>pkt=Create<Packet>(reinterpret_cast<uint8_t
*>("hello"),5);socket->SendTo(pkt,0,InetSocketAddress(Ipv4Address
("10.1.1.1"), 80));*and ended up with following error :



*error: reinterpret_cast from type ‘const char*’ to type ‘uint8_t* {aka
unsigned char*}’ casts away qualifiers*for the first line.
How to resolve this ?
HOW to send any kind of data such as int ,char,string,variable
value,array,list etc. ?
please help.Thank you

[Munde Pravin]

Greetings Sir,
I tried :




*Ptr<Packet>pkt=Create<Packet>(reinterpret_cast<uint8_t
*>("hello"),5);socket->SendTo(pkt,0,InetSocketAddress(Ipv4Address
("10.1.1.1"), 80));*and ended up with following error :



*error: reinterpret_cast from type ‘const char*’ to type ‘uint8_t* {aka
unsigned char*}’ casts away qualifiers*for the first line.
How to resolve this ?
HOW to send any kind of data such as int ,char,string,variable
value,array,list etc. ?
please help.Thank you

[Tommaso Pecorella]

Hi,

please read the posting guidelines.

T

Post by Munde Pravin
Greetings Sir,
*Ptr<Packet>pkt=Create<Packet>(reinterpret_cast<uint8_t
*>("hello"),5);socket->SendTo(pkt,0,InetSocketAddress(Ipv4Address
*error: reinterpret_cast from type ‘const char*’ to type ‘uint8_t* {aka
unsigned char*}’ casts away qualifiers*for the first line.
How to resolve this ?
HOW to send any kind of data such as int ,char,string,variable
value,array,list etc. ?
please help.Thank you