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Which first hop redundancy protocol accomplishes this goal?

An engineer wants to assure that host can locate routers that can be used as a gateway to reach IP-based devices on other networks.

Which first hop redundancy protocol accomplishes this goal?
A . VRRP
B . GLBP
C . IRDP
D . HSRP
E . GSLB

Answer: C

Explanation:

ICMP Router Discovery Protocol (IRDP) allows hosts to locate routers that can be used as a gateway to reach IP-based devices on other networks. When the device running IRDP operates as a router, router discovery packets are generated. When the device running IRDP operates as a host, router discovery packets are received. The Cisco IRDP implementation fully conforms to the router discovery protocol outlined in RFC 1256 (http://www.ietf.org/rfc/rfc1256.txt).

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/15-mt/fhp-15-mt-

book/fhp-irdp.html

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