Hi, 1) I understand that if ISAKMP identifies any NAT device, it encapsulate ESP in UDP-4500. If this NAT-T mechanism is designed to make IPsec compatible with NAT, why doesn't the transport mode work with NAT?  2) If the only difference between tunn...

Hi Friends,I've created a site to site VPN between cisco devices. VPN tunnels are coming up, but traffic is getting encryted only at side.Anyone any idea why it's?Output from local device:Router#show crypto isaCRPvtMUScingh01#show crypto isakmp sa | ...

Friends,Normal burst size defines the size of token bucket which is the amount of data that can be sent in a given time interval.Excess burst size defines  the amount of data that can be sent if no tokens are available in bucket per time interval. Th...