The current recommended default time to live (TTL) for the Internet Protocol (IP) is 64. The maximum TTL is 255, but it is not the default. The default value depends on the operating system as you can see here. So it seems that you’re getting replies from a machine whose default is 64.
time to live
Moreover, What is a normal TTL?
30 seconds to 5 minutes
Secondly, What does TTL mean in ping results?
Time-to-live
Simply so, What is the value of TTL?
Time To Live, or TTL for short, is the sort of expiration date that is put on a DNS record. The TTL serves to tell the recursive server or local resolver how long it should keep said record in its cache. The longer the TTL, the longer the resolver holds that information in its cache.
What is TTL 64 in Ping?
64 is the number of hops that the packet can travel before it is dropped. Hard to reach hosts that are across many hops of the Internet benefit from a larger TTL on packets. In multicast protocols 64 is used to restrict the packet to the same physical region. You may be seeing a multicast protocol.
16 Related Question Answers Found
How is TTL calculated in Ping?
Each router that touches the packet decrements the TTL. If the TTL ever reaches zero, the packet is discarded. It’s also a measure of how many hops the packet took. My guess is that the initial TTL for the ping packets was 255, so the first ping traversal took 200 hops and the second took 9.
How is TTL value calculated?
An IP TTL is set initially by the system sending the packet. It can be set to any value between 1 and 255; different operating systems set different defaults. The time between sending the packet and receiving back the ICMP message that it was discarded is used to calculate each successive hop travel time.
What is the average TTL?
It is recommended that you set your TTL for something longer than the average session time (which is between 2-3 minutes). TXT Record: Widely used for DKIM records, email security and verifying domain ownership. TXT records are rarely changed so anywhere within the 1 – 12-hour timeframe should suffice.
What is good TTL in Ping?
The current recommended default time to live (TTL) for the Internet Protocol (IP) is 64. The maximum TTL is 255, but it is not the default. The default value depends on the operating system as you can see here.
What happens when TTL is 1?
TTL Expiration. When a labeled packet is received with a TTL of 1, the receiving LSR drops the packet and sends an ICMP message “time exceeded” (type 11, code 0) to the originator of the IP packet. This is the same behavior that a router would exhibit with an IP packet that had an expiring TTL.
What is the maximum TTL value?
255
What is the minimum TTL?
DNS TTL Minimum Value Never set your DNS TTL to 0. The number 0 is not defined in the standard, and it may cause your DNS information to be ignored or rejected. Recommendation: 3600 (1 hour) is a good minimum value. It is low enough for changes to take effect quickly, but not so low that the DNS servers get overloaded.
What is TTL value in a record?
Basics Time To Live
What is a TTL of 3600?
Time To Live, or TTL for short, is the sort of expiration date that is put on a DNS record. With a TTL of 3600 seconds, or 1 hour, that means that as a recursive server learns about example.com, it will store that information about the A-record at example.com for one hour.
What is the minimum TTL value in minutes which I can use for DNS records?
DNS TTL Minimum Value Never set your DNS TTL to 0. The number 0 is not defined in the standard, and it may cause your DNS information to be ignored or rejected. Recommendation: 3600 (1 hour) is a good minimum value. It is low enough for changes to take effect quickly, but not so low that the DNS servers get overloaded.
How do I find the TTL of a DNS record?
– Open the terminal application on your Linux/macOS/Unix desktop.
– Type dig TYPE DomainNameHere NS1-AUTHNAME-SERVER-HERE and note down TTL from the answer section.
What is TTL in a record?
DNS TTL (time to live) represents the time each step takes for DNS to cache a record. The TTL is like a stopwatch for how long to keep a DNS record.
Last Updated: 21 days ago – Co-authors : 11 – Users : 6
