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Configuring an IPsec Phase 2 Proposal (Standard and Dynamic VPNs)

When configuring Phase 2 of an IPsec tunnel, you first configure proposals, then policies, and finally you configure IPsec AutoKey (IKE). The following example-based instructions show how to create the initial proposal.

Before You Begin

For background information about standard IPsec VPNs, read:

For background information about dynamic IPsec VPNs, read:

In Phase 2 proposal configuration, you must create a proposal, specify a security protocol, and select authentication and encryption algorithms for the traffic that will flow through the tunnel. In this example, you create a proposal called ipsec_prop_1, specify ESP as the security protocol, and set hmac-md5-96 as the authentication algorithm and 3des-cbc as the encryption algorithm. You also specify that the security association (SA) terminate after 1,800 KB of data pass through it.

To configure Phase 2 proposals, use either the J-Web or the CLI configuration editor. (For information about configuring Phase 2 proposals using J-Web Quick Configuration pages, see Configuring an IPsec Phase 2 Proposal—Quick Configuration (Standard VPNs)or Configuring an IPsec Phase 2 Proposal—Quick Configuration (Dynamic VPNs).)

This topic covers:

J-Web Configuration

To configure an IPsec Phase 2 proposal in J-Web:

  1. Select Configuration > View and Edit > Edit Configuration. The Configuration page appears.
  2. Next to Security, click Configure or Edit.
  3. Next to Ipsec, click click Configure or Edit.
  4. Next to Proposal, click Add new entry.
  5. In the Name box, type Ipsec_prop_1.
  6. From the Authentication algorithm, select hmac-md5-96.
  7. In the Description box, type new ipsec proposal.
  8. From the Encryption algorithm, select 3des-cbc.
  9. In the Lifetime seconds box, type 1800 and click OK.
  10. From the Protocol list, select esp.
  11. To save and commit the configuration, click Commit.

CLI Configuration

To configure an IPsec Phase 2 proposal using the CLI editor:

user@host# set security ipsec proposal ipsec_prop_1 description "new ipsec proposal"
user@host# set security ipsec proposal ipsec_prop_1 protocol esp
user@host# set security ipsec proposal ipsec_prop_1 authentication-algorithm hmac-md5-96
user@host# set security ipsec proposal ipsec_prop_1 encryption-algorithm 3des-cbc
user@host# set security ipsec proposal ipsec_prop_1 lifetime-seconds 1800

Use the following command to display information about this IKE proposal:

user@host# show security ipsec proposal ipsec_prop_1

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