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C_M
Contributor
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Top connections fw tab -u -t connections | awk '{ print $2 }' | sort -n | uniq -c | sort -nr | head

Runnning this command is supposed to show top connecting ips.

I'm having trouble with converting the hex to ip addresses. Any success?

 

I'm using sites and they are just giving me incomplete numbers.

1 Solution

Accepted Solutions
HeikoAnkenbrand
Champion Champion
Champion

Hi @C_M,

This will give you the IP address in decimal for R80.30. 🙂

Top source:

 

fw tab -u -t connections -f |awk '{print $19}' |grep -v "+" |grep -v "^$" | sed 's/;/ /g' | sort -n | uniq -c | sort -nr | head

 

Top destination:

 

fw tab -u -t connections -f |awk '{print $23}' |grep -v "+" |grep -v "^$" | sed 's/;/ /g' | sort -n | uniq -c | sort -nr | head

 

Picture:

bild1.JPG

➜ CCSM Elite, CCME, CCTE

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12 Replies
PhoneBoy
Admin
Admin
Think of the hex number as having dots after every second number.
Convert each of those numbers to hex, you have your IP address.

For example: c0000264 = c0.00.02.64 = 192.0.2.100
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SSlater
Employee
Employee

I use the following site, and it converts every time for me:

https://www.browserling.com/tools/hex-to-ip

When using your command example above, the output is correct, and converted correctly using the site above.

[Expert@LabR8030:0]# fw tab -u -t connections | awk '{ print $2 }' | sort -n | uniq -c | sort -nr | head
1 ac1aa202,
1 0a0101fb,
1 0a01010f,

Do not include the leading '1' when inputting to the website.

 

However, the nature of your task has been provided by Check Point in a more verbose tool.

I would highly recommend using the "ConnStat" Tool, provided by Check Point.

It will provide top-talkers, top-rules, top-services, etc...

Please find sk85780 - How to use the 'connstat' utility.

C_M
Contributor

Thanks, how do you specify which firewall to run it on?

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PhoneBoy
Admin
Admin
connstat runs on a Windows machine.
It processes output taken from whatever firewall you dump the connections table from.
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HeikoAnkenbrand
Champion Champion
Champion

Hi @C_M,

This will give you the IP address in decimal for R80.30. 🙂

Top source:

 

fw tab -u -t connections -f |awk '{print $19}' |grep -v "+" |grep -v "^$" | sed 's/;/ /g' | sort -n | uniq -c | sort -nr | head

 

Top destination:

 

fw tab -u -t connections -f |awk '{print $23}' |grep -v "+" |grep -v "^$" | sed 's/;/ /g' | sort -n | uniq -c | sort -nr | head

 

Picture:

bild1.JPG

➜ CCSM Elite, CCME, CCTE
C_M
Contributor

Great, thanks!

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C_M
Contributor

When I ran it I didn't get any IPs.

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mike123
Participant

nice

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HeikoAnkenbrand
Champion Champion
Champion

Hi @C_M 

I created and tested this with R80.30.
If you are using R80.10 or R80.20, you need an other field in "...awk '{print $XX}' .... for the source IP. Depending on the version the fields are different in the state table.

22:07:24 5 N/A N/A 149.213.248.222 > N/A LogId: <max_null>; ContextNum: <max_null>; OriginSicName: <max_null>; : -----------------------------------(+); Direction: 1; Source: 49.21.28.22; SPort: 22; Dest: 49.23.28.8; DPort: 1981; Protocol: tcp; CPTFMT_sep_1: ->; .....

 

 

➜ CCSM Elite, CCME, CCTE
HeikoAnkenbrand
Champion Champion
Champion

Or use this one-liner in your script to convert a hex IP in a dec IP:

printf '%d.%d.%d.%d\n' $(echo $ip | sed 's/../0x& /g')
➜ CCSM Elite, CCME, CCTE
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Greg_Dunlap
Participant

don't know if you run into this a lot.  but sometimes its quicker to dump the conn table in hex to a file and convert it.

i wrote a python tool to do this 

https://github.com/celticcow/hex2ip

you take the output of fw tab -t connections -u > file.txt
run the ./hex.py -f file.txt and it outputs the single connection entries

souce_ip source_port -> dest_ip dest_port protocl_number lifetime

 

so you can send that to a file and sort it at leasure.

Millo
Explorer

Hi everyone

someone can help me to understand the number near the exadecimal value (for instance 111744) showed by command? 

Seems to be not the number of connection for that ip cause it's pretty higher than the #VALS number of connection showed by fw tab -t connections -s.

 

[Expert@FW]# fw tab -t connections -s
HOST NAME ID #VALS #PEAK #SLINKS
localhost connections 8158 57162 320240 171450


[Expert@FW]# fw tab -u -t connections | awk '{ print $2 }' | sort -n | uniq -c | sort -nr | head
111744 0aef9e40,
57800 0ac04318,
53923 0ac0431a,
734 0aef0ae6,
636 0aef0568,
634 0a0ab464,
382 0a33dc74,
276 0aef070a,
272 0aef0ae9,
254 0a130f39,

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