Weird Wireless issue/ MAC flooding

Microsoft Windows server 2003 enterprise
February 12, 2013 at 23:26:01
Specs: Windows XP, 3Ghz/1GB
Dear All,
I am facing really weird Problem. We have a Network of Cisco Switches and Router. Separate vlans for client, server and Wifi users. DHCP is configured on core Switches(4500 series) and users are connected with access switches(2960)
Following are the vlans.
192.168.20.x user vlan
192.168.10.x Server vlan
192.168.50.x Voice Vlan

The problem which we are facing is some of computers stop getting IP's from DHCP seems like IP's are out of range?? This cant be the issue as we dont have much users. Actually, Its happening since i plug in a WIFI router to one of the Switch port which is user Vlan. I disabled the DHCP in WIFI router so WIFI clients are getting IP's from Core Switch, and internet is working on WIFI clients.If Wifi Router is the issue than i don't know which settings i need to make in a Wireless Router. May be its MAC Address flooding due to Wireless Router??if so than how can i handle this issue.


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#1
February 13, 2013 at 08:32:10
No such thing as mac address flooding so we know that's not it.

Did you connect the wifi router by it wan port or by its lan port?

It should have been connected by its lan port, no dhcp server enabled and it would be assigned a static ip in the user range so you can admin it.

Is it only the wifi clients not getting a dhcp ip? if so its because you connected the wifi router via its wan port.

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#2
February 13, 2013 at 21:19:16
no i connected with lan port.

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#3
February 14, 2013 at 07:27:55
Anytime I hear of issues with a wireless router I have a couple troubleshooting steps I recommend and they are:
1) Recycle the power on the unit (ie: shut it off, wait 10 seconds, plug it back in
2) Ensure you have the msot up-to-date firmware installed on the unit.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#4
February 14, 2013 at 08:17:33
So what pcs on what vlan are not getting dhcp ips?

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