Configuring PPP NCP negotiation mode

Both static and dynamic subscriber interfaces use passive PPP NCP negotiation by default. To enable active negotiation, use the new initiate-ncp configuration statement with the appropriate option:

• For IPv4 (inet family) subscriber interfaces, use the initiate-ncp ip statement.
• For IPv6 (inet6 family) subscriber interfaces, use the initiate-ncp ipv6 statement. You can also configure the negotiation mode for the PPP server in an IPv4/IPv6 dual-stack configuration:
• For active negotiation, use the initiate-ncp ip statement for the IPv4 subscriber interface and the initiate-ncp ipv6 statement for the IPv6 subscriber interface.
• For passive negotiation, use the initiate-ncp dual-stack-passive statement, which overrides the initiate-ncp ip and initiate-ncp ipv6 statements if they are configured