2141■ The local Diffie-Hellman group must be the same as that of the peer.■ This command can be used only when the SAs are to be set up through IKEnegotiation.Related command: ipsec policy-template, ipsec policy (system view).Example # Enable and configure PFS for IPSec policy policy1. system-view[Sysname] ipsec policy policy1 200 isakmp[Sysname-ipsec-policy-isakmp-policy1-200] pfs dh-group1proposalSyntax proposal proposal-name&<1-6>undo proposal [ proposal-name ]View IPSec policy view/IPSec policy template viewParameter proposal-name&<1-6>: Name of the IPSec proposal for the IPSec policy toreference, a string of 1 to 15 characters. &<1-6> means that you can specify theproposal-name argument for up to six times.Description Use the proposal command to specify the IPSec proposal(s) for the IPSec policy toreference.Use the undo proposal command to remove an IPSec proposal reference by theIPSec policy.By default, an IPSec policy references no IPSec proposal.Note that:■ You can specify only existing IPSec proposals when using this command.■ A manual IPSec policy can reference only one IPSec proposal. To replace areferenced IPSec proposal, use the undo proposal command to remove theoriginal proposal binding and then use the proposal command to reconfigureone.■ An IKE negotiated IPSec policy can reference up to six IPSec proposals. The IKEnegotiation process will search for and use the exactly matched proposal.Related command: ipsec proposal, ipsec policy (system view).Example # Configure IPSec policy policy1 to reference IPSec proposal prop1. system-view[Sysname] ipsec proposal prop1[Sysname-ipsec-proposal-prop1] quit
