On CCO check out under IP Routing Protocols the doc "Hot Standby Router Protocol Features and Functionality" www.cisco.com/en/US/tech/tk648/tk365/technologies_tech_note09186a0080094a91. shtml
> -----Original Message----- > From: ericbrouwers [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 18, 2003 12:25 AM > To: [EMAIL PROTECTED] > Subject: Gratuitous ARP and HSRP [7:65633] > > > Hello all, > > I've read in the CCNP Switching Exam Cert. Guide that a > standby router that > becomes active in an HSRP group, sends a gratuitous ARP to > update the ARP > cache of the end stations with the new active MAC address... > > This is strange, since the same virtual MAC address is used > by active and > standby HSRP routers. > > However, maybe Cisco's implementation has once been like > this, because I've > seen instances in the field that ARP caches contained the > real MAC instead of > the virtual MAC address when using HSRP. > > Can someone give comments on this? > > Thanks, > > Eric Brouwers > [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65664&t=65633 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]