CODEWITHSUNDEEP
dnsipttlnameservers
nerez
nerez

Reputation: 447

Is TTL (Time To live) in the IP packet in seconds or steps?

From my previous knowledge, I know that TTL is the amount of routing steps an IP packet is allowed to travel.

On DNS, we are using a IP/UDP base, and from the documentation I see that the TTL actually means the amount of seconds the data stays in the cache of the NameServer.

Am I missing something or is it both?

Thanks

Upvotes: 0

Views: 301

Answers (1)

Mark
Mark

Reputation: 2822

IP TTL is in steps. Time limits, caching, and the like take place at higher levels of the protocol stack; IP doesn't know or care about them.

Upvotes: 1

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