hsrp + port security

From: Spyros Kranis (skranis@algosystems.gr)
Date: Sat Jul 02 2005 - 10:01:47 GMT-3


Dear group,

 

I have two routers R6 and R7 with their Ethernet interfaces connected on the
same vlan at a 3550 ( fa0/6 and fa0/7)

HSRP is enabled between the routers and port security is enabled on the two
ports of the switch.

 

Below is my config regarding the switch:

 

interface FastEthernet0/6

 switchport access vlan 567

 switchport mode access

 switchport port-security

 switchport port-security maximum 2

 switchport port-security violation restrict

 switchport port-security mac-address sticky

 switchport port-security mac-address sticky 00e0.b0fa.251c

end

 

SW2#

SW2#sh run int fa0/7

Building configuration...

 

Current configuration : 357 bytes

!

interface FastEthernet0/7

 switchport access vlan 567

 switchport mode access

 switchport port-security

 switchport port-security maximum 2

 switchport port-security violation restrict

 switchport port-security mac-address sticky

 switchport port-security mac-address sticky 0000.0c07.ac01 <----- virtual
mac

 switchport port-security mac-address sticky 0000.0c8e.de9c

end

 

The fa0/7 is the active router for the hsrp group.

I configured the sticky learn in order to automatically catch the virtual
mac.

 

When I issue the shut command at the Ethernet of R7 and waiting the R6 to
take over. this is what I look at my switch...

 

06:34:30: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred,
caused by MAC address 0000.0c07.ac01 on port FastEthernet0/6.

 

This is obvious because the mac address is already sticky learned at the
fa0/7.

 

Any ideas to configure static mac port security with hsrp ON THE SAME
SWITCH.

 

 

TIA

 

Skra



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