Traffic Shaping with Cisco 2500 and NAT

Draco

Golden Member
Oct 10, 1999
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Anyone done this? I'm having trouble finding a sample on Cisco's site.

I've got this T1 customer with a Cisco 2500 and he runs one of those shady Internet cafes. All his users are sucking up the bandwidth and slowing it down for other customers, so she wants to shape the traffic to each machine to about 512k.


This router is old and slow, so I'm not even sure it can handle it. The guy is cheap and won't invest in a 2600 series model, so this is all I've got to work with.

 

Soybomb

Diamond Member
Jun 30, 2000
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I can't offer any advice on the 2500 front, other than if it doesn't work out with that you pull get together a cheap 486 or pentium have him drop $50 on a license for http://www.mikrotik.com I've played with their trial version before and its pretty cool. Best of all it has a windows gui available so he could tweak the speeds as he wants.
 

Santa

Golden Member
Oct 11, 1999
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The only thing you can really do on a Cisco 2500 is queueing up the differnt services thus limiting what each service can potentially do to the overall bandwidth but that means you know what is sucking up bandwidth.
But you can only do this based upon port and not user so it may not solve your issue.

I would look into creating an ACL for popular peer-to-peer networks and potentially even any service other than the ones you want to offer.
 

Draco

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Oct 10, 1999
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Originally posted by: Soybomb
I can't offer any advice on the 2500 front, other than if it doesn't work out with that you pull get together a cheap 486 or pentium have him drop $50 on a license for http://www.mikrotik.com I've played with their trial version before and its pretty cool. Best of all it has a windows gui available so he could tweak the speeds as he wants.


I actually talked to these guys at the Wispcon convention a couple weeks ago. They have some cool stuff, but I don't think my customer is going to go for their stuff.

 

nightowl

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Oct 12, 2000
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I am with Santa on this. If the owner does not want to spend much money on this I would set up a PC to sniff all packets going out to the Internet and then start making ACLs to deny access to the unnecessary applications that are using most of the bandwidth. Also, depending on the amount of memory and the IOS version on the router you might be able to run some kind of basic QoS queuing.
 

Soybomb

Diamond Member
Jun 30, 2000
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Originally posted by: Draco
Originally posted by: Soybomb
I can't offer any advice on the 2500 front, other than if it doesn't work out with that you pull get together a cheap 486 or pentium have him drop $50 on a license for http://www.mikrotik.com I've played with their trial version before and its pretty cool. Best of all it has a windows gui available so he could tweak the speeds as he wants.


I actually talked to these guys at the Wispcon convention a couple weeks ago. They have some cool stuff, but I don't think my customer is going to go for their stuff.
Awww I wanted to go to wispcon....too much expense to travel though. I haven't used it in production ever but in playing with it it looks effective, easy to use, and priced right compared to a new router or other traffic shaping device. :)