linux信令追踪指令,使用tcpdump抓取sip信令

tcpdump -i wlan0 -s 0 -w 1.cap &

tcpdump -i rmnet0 -s 0 -w test.cap &

第一个是wifi的第二格是移动网络的

服务器端信令抓包

1. Download and

installWireshark

on your windows computer.

2. Download and

installWinSCP

on your windows computer.

3. Use putty to

4Once logged in use the following command to

start the SIP capture:

tcpdump -i eth1 -t -n -s 0 port 5060 -vvv

-w /home/capture_file_name.cap

-i = interface you want to capture on,

eth0, eth1, eth2, etc, you will want to do this on your public

interface most likely.

-t =

time

-n = Do not convert ip addresses to names,

prevents dns lookups.

-s = How many bytes of data to grab from

each packet, zero means use the required length to catch whole

packets.

port = What port to listen to, 5060 is the

default port for SIP.

-vvv = Even more verbose output, this will

give you as many details as possible.

-w = Write to a raw file to be parsed

later.

5. Now that we are capturing packets let it

run for a while at least 5 to 10 minutes to collect some data then

to stop the capture use CTRL Key + C.

6. Once you stopped the capture login to

the server using WinSCP and go to the home directory. You will find

the capture file in there just copy that file to your windows

computer so you will be able to open it with Wireshark.

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linux信令追踪指令,使用tcpdump抓取sip信令

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