From: gladston@br.ibm.com
Date: Mon Dec 06 2004 - 18:19:02 GMT-3
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quoted
When you put HSRP config (standby)
no ip redirect is automagically created on the interface config
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Testing it, IOS does not show the command "no ip redirects", but it indeed does not send the redirect:
r6#sh standby
FastEthernet0/0 - Group 1
Local state is Active, priority 110
Hellotime 3 sec, holdtime 10 sec
Next hello sent in 2.114
Virtual IP address is 172.16.67.100 configured
Active router is local
Standby router is 172.16.67.7, priority 100 expires in 7.688
Virtual mac address is 0000.0c07.ac01
2 state changes, last state change 00:09:30
IP redundancy name is "hsrp-Fa0/0-1" (default)
5d09h: ICMP: redirect not sent to 172.16.67.1 for dest 150.150.150.1
5d09h: ICMP: 172.16.67.7 does not contain an active HSRP group
r6#
5d09h: ICMP: redirect not sent to 172.16.67.1 for dest 150.150.150.1
5d09h: ICMP: 172.16.67.7 does not contain an active HSRP group
r6 conf
!
interface FastEthernet0/0
ip address 172.16.67.6 255.255.255.0
duplex auto
speed auto
standby 1 ip 172.16.67.100
standby 1 priority 110
r6#sh ip int fa 0/0 | i redirec
ICMP redirects are always sent
r6#
It seems altough IOS does not shows redirects is disabled, it detects when the interface is configured as HSRP and blocks it.
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