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.
What does TTL 128 represent?
By default, in Windows and many other OS’s, the TTL will be 128 — that means that after a packet passes through 128 routers, if it hasn’t reached it’s final destination yet, the packet will expire and will be removed from the network.
What is TTL 126?
The TTL value is an 8-bit field, which means it can contain a value between 0 and 255. For example, if NNM sniffed a server sending a packet with a TTL of 126, it detects that 128 is two hops away. NNM does not know the IP address of the in-between routers.
What is the TTL for Mac?
A Windows box has a TTL of 128, Mac usually 52, iPhone’s 64.
What is the best TTL in Ping?
The TCP/IP specification recommends setting the TTL field for IP packets to 64, but many systems use smaller values (4.3BSD uses 30, 4.2BSD used 15). And to quote RFC 1700: The current recommended default time to live (TTL) for the Internet Protocol (IP) is 64.
How do I change my TTL to ping?
To ping with a custom TTL:
- Open a command prompt.
- Type ping 8.8. 8.8 and press Enter.
- Observe the results. The ping request should be successful.
- Type ping -i 1 8.8. 8.8 and press Enter.
- Observe the results.
- Type ping -i 2 8.8.
- Observe the results.
- Close the command prompt to complete this activity.
What OS has a default TTL of 128?
Initial TTL values
| Device / OS | Version | TTL |
|---|---|---|
| Windows | NT 4 Server SP4 | 128 |
| Windows | ME | 128 |
| Windows | 2000 pro | 128 |
| Windows | 2000 family | 128 |
What is the TTL value for Windows?
Initial TTL values
| Device / OS | Version | TTL |
|---|---|---|
| Windows | ME | 128 |
| Windows | 2000 pro | 128 |
| Windows | 2000 family | 128 |
| Windows | Server 2003 | 128 |
How do I find TTL on Mac?
Find Out Time-To-Live (TTL) for 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 should my TTL be set to?
Generally, we recommend a TTL of 24 hours (86,400 seconds). However, if you are planning to make DNS changes, you should lower the TTL to 5 minutes (300 seconds) at least 24 hours in advance of making the changes. After the changes are made, increase the TTL back to 24 hours.