如何进行NETSCREEN  VPN的配置
一、网络结构
假如有一远程客户端，安装了NETSCREEN-REMOTE软件，通过拨号连接到INTERNET。通过与NETSCREEN防火墙建立VPN连接，访问公司内部网络。网络拓扑图如下


二、NETSCREEN防火墙配置（WEBUI）

1、 创建一个拨号用户帐号
Click Objects > Users > Local
2、 Click New
1. Username: User1
2. Status: Enable
3. Click IKE User
4. Number of Multiple Logins: 1
5. Click Simple Identity
6. IKE Identity: user1@netscreen
7. Click OK
3、 创建拨号VPN组
Click Objects > User Groups > Local
4、 lick New
1． Group Name: User Group
将相应的用户添加到用户组当中
2． Click OK
5、 创建Phase 1 IKE Negotiation:
Click VPNs > AutoKey Advanced > Gateways
6、 Click New
1． Gateway Name: Dialup GW
2． Security Level: Click Custom
3． Click Dialup User Group
4． Group: Select User Group
5． Preshared Key: netscreen
6． Outgoing Interface: e3/1 (assuming interface e3/1 is bound to untrust zone)
7． Click Advanced
i. Phase 1 Proposal: pre-g2-3des-md5
ii. Mode (Initiator): Aggressive
iii. Click Return
8． Click OK
7、 建 Phase 2 IKE Negotiation:
Click VPNs > AutoKey IKE
8、 Click New
1． VPN Name: Dialup VPN
2． Remote Gateway: Predefined
3． Select Dialup GW for the Predefined Remote Gateway
4． Click Advanced
i. Phase 2 Proposal: g2-esp-3des-md5
ii. Click Return
5． Click OK
9、 创建 Dial Up VPN Policy:
Click Policies
10、 Select From Untrust
11、 Select From Trust
12、 Click New
1． Source Address: Address Book: Select Dial-Up VPN
2． Destination Address: Click New Address: 172.16.10.0/24
3． Service: Any
4． Action: Tunnel
5． Tunnel: Dialup VPN
6． Click Position at Top
7． Click OK
三、配置客户端软件
1、 一个新的连接策略，命名为dial-up
2、添加远程子网和远程网关
ID Type: IP Subnet
Subnet: 172.16.10.0
Netmask: 255.255.255.0 negotiation auto
Click Connect using Secure Gateway Tunnel
ID Type: IP Address: 1.1.1.1

3、编辑连接属性
1、Click Security Policy
1．Select Phase 1 Negotiation Mode: Aggressive
2．Select Enable Perfect Forward Secrecy (PFS)
3． PFS Key Group: Diffie-Hellman Group 2
4．De-select "Enable Replay Detection"

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