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routing problem of 4 msfc's hsrp

henrybb
Level 1
Level 1

---------------------| |------------

msfc1(.249)----| |msfc3(.251)

--------------------|-trunk---|------------

msfc2(.250)----| |msfc4(.252)

----- ---------------| |------------

HSRP are configed on all four msfc of 6509 which ios version is 12.1(2)E ,one is active,one is standby and other two msfc is listen.

pc6:one pc of vlan 6,ip is 10.1.6.2

pc1:one pc of vlan 1,ip is 10.1.1.2

HSRP of vlan 6:

.251 is active,.250 is standby,.249 and .252 is listen

HSRP of vlan 1:

.252 is active,.249 is standby,.250 and .251 is listen

when I ping(s=10.1.6.2,d=10.1.1.2),ping will always fail,and arp entry of 10.1.6.2 is not exist on msfc4 ,

BUT if I ping(s=10.1.6.2,d=10.1.6.252),ping success,then ping(s=10.1.6.2,d=10.1.1.2) will success.

I think the packet flow is:

pc6---.253 of vlan 6-----.251 of vlan 1----pc1----.253 of vlan 1-----.252 of vlan 6--?????(I think arp doesn't do)--pc6

so I think maybe listen router will do nothing about arp.

I use bug toolkit to find nothing about it.

anybody can help me? thanks,and any comment is appreciated.

flowchart:

msfc3#sh standby brief

P indicates configured to preempt.

|

Interface Grp Prio P State Active addr Standby addr Group addr

Vlan1 1 50 P Listen 10.1.1.252 10.1.1.249 10.1.1.253

Vlan6 2 200 P Active local 10.1.2.250 10.1.2.253

msfc3#sh ip arp | include 10.1.1.2

Protocol Address Age (min) Hardware Addr Type Interface

Internet 10.1.1.2 4 0030.6e01.cd99 ARPA Vlan1

msfc3#sh ip arp | include 10.1.6.2

Protocol Address Age (min) Hardware Addr Type Interface

Internet 10.1.6.2 4 0030.6e01.f899 ARPA Vlan6

msfc4#sh standby brief

P indicates configured to preempt.

|

Interface Grp Prio P State Active addr Standby addr Group addr

Vlan1 1 200 P Active local 10.1.1.249 10.1.1.253

Vlan6 6 50 P Listen 10.1.6.251 10.1.6.250 10.1.6.253

msfc4#sh ip arp | include 10.1.1.2

Protocol Address Age (min) Hardware Addr Type Interface

Internet 10.1.1.2 4 0030.6e01.cd99 ARPA Vlan1

msfc4#sh ip arp | include 10.1.6.2

msfc4#****nothing******

ping(s=10.1.6.2 d=10.1.1.2) fail

msfc4#sh ip arp | include 10.1.6.2

msfc4#*****nothing******

ping(s=10.1.6.2,d=10.1.6.252) successs

msfc4#sh ip arp | include 10.1.6.2

Protocol Address Age (min) Hardware Addr Type Interface

Internet 10.1.6.2 1 0001.030e.5c8e ARPA Vlan6

then:

ping(s=10.1.6.2 d=10.1.1.2) success

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