Recommendation however is to use either a STRONG Preshared Key or a 3rd Party Certificate note that the certificate will need to be installed on both end points. Border Gateway Protocol BGP is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems AS on the Internet.
Thus for example although it is mandatory to define at least one ISAKMP policy it is not mandatory to set the values for that ISAKMP policy since the Branch Gateway contains default ISAKMP.
No vpn policy for peer gateway. The Suppress automatic Access Rules creation for VPN Policy setting is not enabled by default to allow the VPN traffic to traverse the appropriate zones. The Suppress automatic Access Rules creation for VPN Policy setting is not enabled by default to allow the VPN traffic to traverse the appropriate zones. BGP used for routing within an autonomous.
In the following sections all IPSec VPN parameters that you must configure are indicated as mandatory parameters. BGP is classified as a path-vector routing protocol and it makes routing decisions based on paths network policies or rule-sets configured by a network administrator. Much like the Global VPN Policy authentication is one of the foremost concerns there are three options to choose from when creating a Site to Site vpn for Authentication.
The Keep Alive option will be disabled when the VPN policy is configured as a central gateway for DHCP over VPN or with a primary gateway name or address 0000. Select Suppress automatic Access Rules creation for VPN Policy to turn off the automatic access rules created between the LAN and VPN zones for this VPN policy. Non-mandatory VPN parameters have default values that are used unless otherwise set.