We start out with a basic topopology of 3 routers. R2 and R3 will peer to each others loopback. I have setup OSPF for full reachability in the network. First we test connectivity. R2#ping 3.3.3.3 so lo0 Type escape sequence
Filtering packets by TTL in Cisco ACL
As I make progress through the INE workbooks I’m writing posts about features that I find interesting and that might not be that known to the general public. I wasn’t aware that you could filter packets based on TTL in