Question: why not use SNMP traps?  Configure the switch to tell PF when a user 
plugs in, in my experience it has worked much better than a MAC Vlan.

Jake Sallee
Godfather of Bandwidth
System Engineer
University of Mary Hardin-Baylor
900 College St.
Belton, Texas
76513
Fone: 254-295-4658
Phax: 254-295-4221


-----Original Message-----
From: Jose [mailto:[email protected]] 
Sent: Sunday, September 25, 2011 3:33 AM
To: [email protected]
Subject: [Packetfence-users] portfast and DHCP problem

Hello,

I have packetfence installed in a lab, with a 3560 cisco switch.
I use mac-detection and uplik, and it works, but very slow.
When I connect a PC to the switch, the cisco switch port goes up but taking a 
lot of time, the PC tries to get an ip from dhcp, and after a timeout, it 
finally gets the ip and works.
After that, I register the pc, and the same problem. the port goes down, and 
up, and it recalculates, etc...

But, if I activate portfast, the port goes up inmediately, the PC gets an ip by 
DHCP inmediately, and after logging on, the port goes down and up so fast, that 
the PC does not renegotiate the ip, and the process does not continue. The 
Packerfence change the vlan to the vlan mac-registration, but it does not 
change the vlan to the normal vlan again and the PC has an ip from the 
mac-detection vlan (quite caotic). So, it does not work when I activate the 
portfast, and if I deactivate it, the process is very very slow (it takes 3 
minutes).

Any idea?

Sorry for my English.

Thank you.
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definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
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