I need some advise on the TTL. Currently my application vendor sets TTL to be with value 1 and he should increase it. He is thinking about value of 10, but I'm not sure that this is enough:
Assuming I have a network working in its domain when the connection between the 2 entities is based on LAN / single router.
Now I'm appending a WAN between them. Meaning I'm appending a routers at each side running GRE tunnel between them (between the routers and the common network there is also an encryptor).
- what are the TTL considerations when adding the WAN in between the 2 entities
- what is the GRE tunnel shall have its own TTL or it is uses the TTL from the original IP packet?
- if there are 2 routings in the router from packet input to packet output, will the TTL be decrised twice?
Thank you :)