Are you saying you would like to filter HSRP events from crossing a user VLAN? You will need a layer 2 connection between the 6506's for HSRP. STP will determine where layer 2 traffic between the switches goes.
Q. HSRP stops working when an Access Control List (ACL) is applied. How can I permit HSRP through an ACL?
A. HSRP hello packets are sent to multicast address 18.104.22.168 using UDP port 1985. Whenever an ACL is applied to an HSRP interface, ensure that packets destined to 22.214.171.124 on UDP port 1985 are permitted.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...