Difference between revisions of "First-hop security IPv6 Cisco IOS"
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Revision as of 09:06, 18 December 2011
This article is under development....
Unicast Reverse Path Forwarding
To avoid spoofed packets passing a Router. Could be DoS attack. With RPF - reverse Path Forwarding - the router checks that the sending hosts source IP address matches the routing table on the receiving interface.
- Example
- An access-list can be used as an option to this command
R1(config)#<input>interface fa0/1</input>
R1(config-if)#ipv6 verify unicast reverse-path