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1 vote

what information needs a router to make a decision?

A router uses its routing table to make routing decisions. A packet's destination IP address is matched against the table and the next hop from the entry with the longest prefix match is used. The ...
Zac67's user avatar
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1 vote

Do destination hosts decrement the TTL?

A proper IPv4 implementation should also look at the intention of RFC 791: The intention [of the TTL mechanism] is to cause undeliverable datagrams to be discarded, and to bound the maximum datagram ...
Angelos Vassiliou's user avatar
1 vote

Do destination hosts decrement the TTL?

As of RFC 791 (emphasis mine): The Time to Live is an indication of an upper bound on the lifetime of an internet datagram. It is set by the sender of the datagram and reduced at the points along ...
Zac67's user avatar
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1 vote

What happens to the unused IP addresses in the subnet that falls in between two routers?

To the question about what happens to the unused addresses in your subnets, nothing. They stay unused, not doing anything. That is, until you have an attacked in your network, being free to use any of ...
Fnyn's user avatar
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