Hello Leif: > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:cisco-nsp- > [EMAIL PROTECTED] On Behalf Of Leif Sawyer > Sent: Thursday, November 13, 2008 11:34 AM > To: cisco-nsp > Subject: [c-nsp] 3750 HSRP question > > All - > > I've got two 3750's acting in an HSRP failover environment for some > critical services. > > HSRP is running on a vlan interface. > > We have a number of appliances that are dual-homed across the switches, > living on the particular VLAN. > > We've been experiencing an issue with one of our appliances, and the > vendor > has come back and asked us to filter out HSRP messages on the physical > interfaces > connected to their appliance. > > > Is there a way to filter the HSRP messages from going out a switchport? > > They're currently configured with portfast and bpdufiltering enabled. > HSRP uses multicast address 224.0.0.2 so you could filter out that IP on the appliance-facing ports.
Regards, Mike
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