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Problem with Senao 2511 in AP mode and Cisco 4800/340 client

Posted: Mon Jun 13, 2005 10:37 pm
by dan_99503
We purchased another WISP and we are going to upgrade an existing network and would like to eliminate the Cisco AP/bridges that are currently running it.

The problem I have run into is throughput and association problems with the Cisco wireless cards when connected to the 2511 in AP mode.

I was hoping to remove the Cisco bridge but it looks like there are too many compatibility issues with the old Cisco wireless cards. Unfortunately the customers own all of thier own equipment so replacing it all at once isn't an option.

This puts me in a bind and brings up one other question about traffic shaping.

If I assign two subnets to the same Ethernet interface can I shape clients traffic CBQ (on subnet 192.168.1.x) to/from the other subnet (66.181.x.x public) on the same Ethernet port?

Can anyone confirm if this will work? I am setting it up now but was hoping for a definative answer from someone who has tried this before.. Oh how I wish I had the dual Eth available 8(.

Thanks,

- Dan

Posted: Tue Jun 14, 2005 2:36 am
by hitek146
I can't exactly answer your question, but I can tell you that we have run into your situation before. What we did was to leave the existing access point running, while simutaneously adding our new access point on a new frequency, using an additional antenna. We were then able to gradually upgrade our subscribers to new equipment using the new access point, while the other customers still had access. Of course, any new customers automatically receive the new type of equipment. While the Cisco client equipment can be made to work with a Mikrotik access point using the proper configuration, this can be quite tricky. Most likely, you would have to reconfigure each subscribers Cisco equipment, and specially configure the new access point in a fashion that would work that Cisco equipment. This would mean that your new access point would not be optimally configured to work your new client premesis equipment....

Hitek

Posted: Tue Jun 14, 2005 2:59 am
by jarosoup
Have you disabled the Cisco extensions and changed the packet encapsulation (from 802h to the RFC one)?

Posted: Tue Jun 14, 2005 8:34 am
by dan_99503
The base site has everything turned off and the clients are actually PCMCIA cards in ISA/PCI carriers installed into PCs in most cases.

Customers are running a variety of OSs (98-XP) and have direct access to the client card config. It is also very remote with access by airplane only. I know this is far from ideal but it's what I have to work with.

We are considering other client options but we have to introduce them slowly due to the increased cost.