IP Redirects
When a packet accustomed on an interface is appropriate to avenue out through the aforementioned interface on which it was received, an ICMP
redirect bulletin is beatific to the host advertence the absence aperture abode to be acclimated for consecutive forwarding. In earlier
versions of IOS, if Hot Standby Router Protocol (HSRP) was configured on an interface, ICMP alter letters were disabled absence for the interface. With Cisco IOS Release 12.1(3)T and later, ICMP alter letters are enabled by absence if HSRP configured.
The no ip redirects command beneath the interface agreement approach can be acclimated to attenuate IP redirect. This account should disabled abnormally on untrusted arrangement interfaces because it can be acclimated to map the network.