I have two questions that i wanted to ask before.
What is TTL?!
I know that it's time to live for packet to die it count how many hops you jump in it every icmp but i don't know how it works and what are the rules.
When ever i search for 0.0.0.255 (Wildcard mask) i've never found a good result
The net mask let you specify the host and the network id what does wildcard do and why we replace the net mask with wildcard in routing?
Thank you for your care.