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C_M
Contributor

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

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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

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

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11 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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Stephen_Slater
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

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

View solution in original post

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

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: ->; .....

 

 

HeikoAnkenbrand
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')
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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.