From what I gather ICMP redirect is done when a gateway get an message which might have a destination same broadcast domain. I think I understand what you are saying but just to clarify, …

In order to trigger an ICMP redirect message, the packet must arrive on the same interface the Router would use to forward the packet. Also ipv6 redirects should be enabled (default …

In IPv4, a host ignores redirects specifying a next-hop that is not on-link according to the link’s network mask. The IPv6 redirect mechanism is expected to be useful on nonbroadcast and …

BFD will work without disabling ICMP redirects, and might not be a problem if you have only a few BFD peers, but at some point the CPU will be too busy generating the ICMP redirects. This is …

no ip redirects--this disables icmp redirect messages. Redirects happen when a router recognizes a packet arriving on an interface and the best route is out that same interface. In that case the …

ICMP redirect cache is empty CLIENT# SERVER#show ip route Default gateway is 10.2.5.100 Host Gateway Last Use Total Uses Interface ICMP redirect cache is empty SERVER# …

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Jan 21, 2022 · Understanding ICMP Protocol with Wireshark in Real Time • Questions: • What is the MTU size of the ICMP packet at the Network Layer? • What is the MTU size of the ICMP …

ICMP redirection works as expected in that case: host adds entry to the redirect cache, but router just ignores message. But I'm not so sure about IPv6 on cisco routers. Even when IPv6 …

almost every device is using type 5 code 1 icmp redirect for host even the device which have ip routing enabled why the router which have ip routing enabled received type 5 code 1 ? i …