In UDP, destination

Posted by ert on Stack Overflow See other posts from Stack Overflow or by ert
Published on 2010-04-14T11:53:01Z Indexed on 2010/04/15 4:03 UTC
Read the original article Hit count: 373

Filed under:

In UDP, destination IP and destination port number are used to demultiplex the packets, but in TCP destination IP, source IP, destination port number and source port numbers (4-tuple) all needed to distinguish between the connections why reasoning for this usage.

Related posts about udp

Forwarding udp ports iptables packets "lost"?

as seen on Server Fault - Search for 'Server Fault'
I have a Linux router (Debian 6.x) where i forward some ports to internal services. Some tcp ports (like 80, 22...) are OK. I have one Application listening on port 54277udp. No return is coming from this app, i only get Data on this port. Router: cat /proc/sys/net/ipv4/conf/all/rp_filter = 1 cat… >>> More
Why can blocked IPs get through my iptables? What's wrong with this configuration?

as seen on Server Fault - Search for 'Server Fault'
(Why can/How are) blocked IPs (get/getting) through my iptables? Hello and thanks for your consideration... I have configured iptables and included (below) output from the command "iptables --line-numbers -n -L" yet IP addresses (like 31.41.219.180) from IP blocks I have already blocked are getting… >>> More
iptables rules keep showing up

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I just installed an ubuntu precise server, after a few weird communications issues I checked the iptables list and found: Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere… >>> More
if I put accept all 0.0.0.0/0 means this server is totally open for any ip ?

as seen on Server Fault - Search for 'Server Fault'
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 is this means allow all ip from all port? but I still can not visit the server except I go through the allowed ip address and if I put this line in any line, did I make this server totally open for any connection? the full iptable list is below Chain… >>> More
Is there a way to receive receive data as unsugned char over UDP on QT

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to send floating point numbers using UDP connection to a QT application. Now in QT the only function available is qint64 readDatagram ( char * data, qint64 maxSize, QHostAddress * address = 0, quint16 * port = 0 ) which accepts data in the form of signed character buffer. I can convert… >>> More

Developer IT

In UDP, destination - Developer IT

In UDP, destination

in

udp

destination

ip

Related posts about in

Related posts about udp

Forwarding udp ports iptables packets "lost"?

Why can blocked IPs get through my iptables? What's wrong with this configuration?

iptables rules keep showing up

if I put accept all 0.0.0.0/0 means this server is totally open for any ip ?

Is there a way to receive receive data as unsugned char over UDP on QT

Categories cloud