Cisco ASA 之 Easy 虚拟专用网

Posted 2020-11-23

具体原理及参数可以参考：https://blog.51cto.com/14227204/2449696
这里我就不详细说明了，大致原理都一样，我就直接开整了
1、环境如下：

2、开始配置（自行配置接口IP）
ASA 配置如下：

ciscoasa> en
Password:
ciscoasa# conf t
ciscoasa(config)# int e 0/0
ciscoasa(config-if)# nameif inside
INFO: Security level for "inside" set to 100 by default.
ciscoasa(config-if)# ip add 192.168.0.1
ciscoasa(config-if)# no shutdown
ciscoasa(config-if)# exit
ciscoasa(config)# int e 0/1
ciscoasa(config-if)# nameif outside
INFO: Security level for "outside" set to 0 by default.
ciscoasa(config-if)# ip add 200.0.0.2
ciscoasa(config-if)# no shutdown
ciscoasa(config)# route outside 0 0 200.0.0.1           # 0代表0.0.0.0 
# ASA中的AAA默认开启，所以不需要手动开启了 
ciscoasa(config)# username zhangsan password 123123               # 配置AAA认证用户
ciscoasa(config)# crypto isakmp enable outside             # 开启IKE协商功能
# 阶段一：指定管理连接的相关参数，加密算法等
ciscoasa(config)# crypto isakmp policy 10             
ciscoasa(config-isakmp-policy)# encryption 3des
ciscoasa(config-isakmp-policy)# hash sha 
ciscoasa(config-isakmp-policy)# authentication pre-share
ciscoasa(config-isakmp-policy)# group 2
ciscoasa(config-isakmp-policy)# exit
ciscoasa(config)# ip local pool test-pool 192.168.1.200-192.168.1.210          # 创建地址池
ciscoasa(config)# access-list split-acl permit ip 192.168.0.0 255.255.255.0 any       # 编写ACl
ciscoasa(config)# group-policy test-group internal
ciscoasa(config)# group-policy test-group attributes
ciscoasa(config-group-policy)# split-tunnel-policy tunnelspecified
ciscoasa(config-group-policy)# split-tunnel-network-list value split-acl
ciscoasa(config-group-policy)# exit
ciscoasa(config)# tunnel-group test1-group type ipsec-ra
ciscoasa(config)# tunnel-group test1-group general-attributes
ciscoasa(config-tunnel-general)# address-pool test-pool                 # 应用所创建的地址池
ciscoasa(config-tunnel-general)# default-group-policy test-group
ciscoasa(config-tunnel-general)# exit
ciscoasa(config)# tunnel-group test1-group ipsec-attributes
ciscoasa(config-tunnel-ipsec)# pre-shared-key 321321            # 配置组密钥
ciscoasa(config-tunnel-ipsec)# exit
ciscoasa(config)# crypto ipsec transform-set test-set esp-3des esp-sha-hmac
ciscoasa(config)# crypto dynamic-map test-dymap 1 set transform-set test-set
ciscoasa(config)# crypto map test-stamap 1000 ipsec-isakmp dynamic test-dymap
ciscoasa(config)# crypto map test-stamap int outside            # 应用到接口

客户端安装也可参考：https://blog.51cto.com/14227204/2449696 （后半部分）
3、验证