I have an issue where I have a dumb layer2 switch (netgear and Linksys) hanging off of a 3550. Devices on these ports loop during the authentication process, or don't even go through it, the simple get left in the AUTH VLAN. I do not have any port security setting turned on on these ports, and have all of the IP Phones and Printers in the filtered devices list. Any ideas why this may occur?
Thanks in advance for any help!
interface FastEthernet0/8
description Voice-Data Port
switchport mode access
switchport voice vlan 151
spanning-tree portfast
!
interface FastEthernet0/11
description Voice-Data Port
switchport mode access
switchport voice vlan 151
spanning-tree portfast
Cisco IOS Software, C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(44)SE6, RELEASE SOFTWARE (fc1)