10-17-2013 03:29 AM - edited 03-07-2019 04:04 PM
When I have to remove port security completly from a 3550 switch and re-apply security again to all ports, SOME ports that had the original mac address start being violated? even though the mac has not changed?
I have used the clear port security commad but this does not work.
I have cleared the mac-address table, this does not work.
The only way I can get the swich to accept the mac address in the ports is to reboot the switch.
Anyone experienced this behavour?????
10-17-2013 11:32 AM
Hi Lipsett,
The switch supports these types of secure MAC addresses:
Refer:
You can use port security aging to set the aging time for static and dynamic secure addresses on a port.
Two types of aging are supported per port:
Use this feature to remove and add PCs on a secure port without manually deleting the existing secure MAC addresses and to still limit the number of secure addresses on a port. You can enable or disable the aging of statically-configured secure addresses on a per-port basis
Regards,
Aru
*** Please rate if the post is useful ***
10-18-2013 12:29 AM
Aru
Thanks for your answer. but it does not resolve my issue. I use dynamic stick security
The confoguration I use is-
interface FastEthernet0/1
switchport access vlan @
switchport mode access
switchport port-security
switchport port-security violation restrict
switchport port-security mac-address sticky
spanning-tree portfast
When I remove security with -
Int ra fa 0/1 - 48
no switchport port-security
no switchport port-security mac sticky
Then re-apply the config, only some, not all ports lock out, why ??
Only a complete reboot solves the issue.
Regards
John
10-18-2013 03:53 AM
Hi John,
"no switchport port-security" will return the interface to default condition as not a secure port
I hope when you dynamically configured, stored only in the address table, and it can be removed when the switch restarts.
Regards,
Aru
*** Please rate if the post is useful ***
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide