LAN users internet monitoring system

LAN users internet monitoring system
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Subject Author Date
LAN users internet monitoring system Anil 11-25-2005
Posted by Anil on November 25, 2005, 2:41 am
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Hi all,

I am Sys Admin for a small development company, we have a small
bandwidth and i see that my MTRG all ways shows full.

I would like to know how in the network is utilizing the bandwidth. I
am using Cisco pix as my firewall and also doing a NAT/PAT on it.
Because I am doing NAT/PAT on it, I am unable to check the LAN users
Internet usage details.

Earlier I used Linux firewall (self build) on IP Tables & used NTOP to
find the usage of LAN users but on Cisco PIX I am unaware. Please
suggest some way out.

Thanks,
Anil


Posted by Moe Trin on November 25, 2005, 3:07 pm
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On 24 Nov 2005, in the Usenet newsgroup comp.security.misc, in article

>I would like to know how in the network is utilizing the bandwidth. I
>am using Cisco pix as my firewall and also doing a NAT/PAT on it.
>Because I am doing NAT/PAT on it, I am unable to check the LAN users
>Internet usage details.

What network topology? If coax, or 10BaseT, simply 'tee' a Linux box
off the wire to the PIX, and run NTOP as before. Switched network or
fiber? Look at the switch/concentrator, and configure a monitoring port,
and feed that to your Linux box.

Old guy

Posted by Walter Roberson on November 25, 2005, 4:01 pm
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>I am Sys Admin for a small development company, we have a small
>bandwidth and i see that my MTRG all ways shows full.

>I would like to know how in the network is utilizing the bandwidth. I
>am using Cisco pix as my firewall and also doing a NAT/PAT on it.
>Because I am doing NAT/PAT on it, I am unable to check the LAN users
>Internet usage details.

At least in PIX 6.x, the PIX itself cannot show you who is using
how much. In order to do that you have to turn on logging and
analyze the logs.

For further information and a sample program, see

http://groups.google.ca/group/comp.dcom.sys.cisco/browse_thread/thread/972a527ba458f06/37ddb0b6234c1e48#37ddb0b6234c1e48
--
If you lie to the compiler, it will get its revenge. -- Henry Spencer

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