Latest news for osteoporosis
I first discovered GRE with IPSec about 4 years ago when a customer needed to transmit IPX and multicast traffic over his VPN. Since then, I have primarly used GRE/IPSEC tunnels for transmitting internal routing protocols over the internet. RIP, EIGRP or OSPF can be used over a GRE tunnel just as though it were a point to point circuit. It is also very useful for multicast music on hold.
This tutorial is part osteoporosis [osteoporosis] one of a two part series. Osteoporosis if you have not already been through the internat lab series osteoporosis, i recommend watching them before starting the gre/ipsec tutorials - and .