TTL and MTU for 6in4 tunnel

[bakaekze]

Hello, what should I set TTL and MTU to for 6in4 tunnel on my ASUS RT-AC66U router?

[cholzhauer]

You normally don't need to change anything unless you experience issues.

Then, MTU is not dependent on your router selection, neither is TTL.

[bakaekze]

Which are default values then?  :P

[maltacourt]

MTU is on Advanced tab of your tunnel details = 1480.

[bakaekze]

That's what I set it to. But what about TTL?

[polternet]

TTL is used to prevent things like route loops or for putting a limit on the "network distance" you want your traffic to follow. Most OSs have a reasonable default:

https://en.wikipedia.org/wiki/Time_to_live

If you HAVE to set something, try 64. It should be fine unless you live somewhere with a VERY convoluted connectivity to the rest of the world.

Dan