""garrett allen"" wrote in message news:[EMAIL PROTECTED] > i have a need for a high availability solution for a default gateway > configuration. just finished the ccdp and thought it might be > interesting to try hsrp on a pair of 2514's. put some of that theory > to work. instead of highly resiliant i've managed to configure it for > mass failure. arg.., not exactly what i had in mind. now, any time i > take down 1 of the 4 links, the connect between 2 remote hosts dies. > this is in a lab (production is not a lab, production is not a lab...) > so it is a mystery i would like to solve, but it is not critical. > > here is the basic config (hope it makes it): > > pc host 1 -----+----- e0 router 1, e1 ----+--------- pc host 2 > | | > |----- e0 router 2, e1 ----| > > the routers act as a default gateway between the internal network > (represented by pc host 1) and the external world (represented by pc > host 2). i have used 10.3 and 10.4 /16 as the addresses for each side > of the divide. i want to run hsrp on both sets of router interfaces so > that in the event a router or an interface fails, the traffic impact is > minimized. in the real world pc host 2 will be a firewall and there > will be other hosts off that segment as well > > looks easy. sounds plausible. read the cisco docs. looks like it > should work. minimal incantations before tickling the keyboard. key > in the configs and it fires up nicely. do the show standby thingee and > all looks cool. can ping the 2 stations end to end. most excellent. > put a router in debug mode. when i pull one of the 4 router cables the > router goes through a state change but no bits make it to the far end. > not even the shiney ones. bitstream courtesy of ping. > > maybe i misunderstood what hsrp was suppose to do. the configs are > below, along with the show standby results. both are 2514's (2 aui's) > and both are running 12.2(1d). probably forgot to put the interface in > mumble mode or something equally easy. no laughter, please.
HSRP assumes the ehternet interfaces to be on the same subnet. your ehternet side is on two different subnets. hence - no failover. to get this to work using 2514's: E0----------2514_1-----------E1 E0----------2514_2-----------E1 the e0's on the same subnet, the e1's on the same subnet > > thanks in advance. > > router 1 > interface Ethernet0 > ip address 10.3.255.2 255.255.0.0 > no ip route-cache > no ip mroute-cache > standby 1 priority 200 preempt > standby 1 ip 10.3.0.2 > ! > interface Ethernet1 > ip address 10.4.254.2 255.255.0.0 > no ip route-cache > no ip mroute-cache > standby 2 priority 200 preempt > standby 2 ip 10.4.254.10 > > > router 2 > interface Ethernet0 > ip address 10.3.255.1 255.255.0.0 > no ip route-cache > no ip mroute-cache > standby 1 priority 225 preempt > standby 1 ip 10.3.0.2 > ! > interface Ethernet1 > ip address 10.4.254.1 255.255.0.0 > no ip route-cache > no ip mroute-cache > standby 2 priority 150 preempt > standby 2 ip 10.4.254.10 > > results of show standby > Router1#show standby > Ethernet0 - Group 1 > Local state is Standby, priority 200, may preempt > Hellotime 3 holdtime 10 > Next hello sent in 00:00:00.940 > Hot standby IP address is 10.3.0.2 configured > Active router is 10.3.255.1 expires in 00:00:09, priority 225 > Standby router is local > 20 state changes, last state change 00:22:34 > Ethernet1 - Group 2 > Local state is Active, priority 200, may preempt > Hellotime 3 holdtime 10 > Next hello sent in 00:00:01.676 > Hot standby IP address is 10.4.254.10 configured > Active router is local > Standby router is 10.4.254.1 expires in 00:00:08 > Standby virtual mac address is 0000.0c07.ac02 > 17 state changes, last state change 00:23:26 > Router1# > > Router2#show standby > Ethernet0 - Group 1 > Local state is Active, priority 225, may preempt > Hellotime 3 holdtime 10 > Next hello sent in 00:00:01.010 > Hot standby IP address is 10.3.0.2 configured > Active router is local > Standby router is 10.3.255.2 expires in 00:00:09 > Standby virtual mac address is 0000.0c07.ac01 > 24 state changes, last state change 00:22:04 > Ethernet1 - Group 2 > Local state is Standby, priority 150, may preempt > Hellotime 3 holdtime 10 > Next hello sent in 00:00:01.272 > Hot standby IP address is 10.4.254.10 configured > Active router is 10.4.254.2 expires in 00:00:09, priority 200 > Standby router is local > 32 state changes, last state change 00:22:25 > Router2# Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=64660&t=64638 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
