ASA配置笔记 ASA配置笔记

1. 常用技巧....................................................................................... 1 2. 故障倒换....................................................................................... 1 3. 配置telnet、ssh及http管理............................................................ 3 4. vpn常用管理命令.......................................................................... 3 5. 配置访问权限................................................................................ 3 6. 配置sitetosite之VPN...................................................................... 4 7. webvpn配置（ssl vpn）................................................................. 4 8. 远程拨入VPN................................................................................ 5 9. 日志服务器配置............................................................................. 6 10. Snmp网管配置............................................................................. 7 11. ACS配置...................................................................................... 7 12. AAA配置..................................................................................... 7 13. 升级IOS...................................................................................... 8 14. 疑难杂症...................................................................................... 8 1. 常用技巧

Sh ru ntp查看与ntp有关的 Sh ru crypto 查看与vpn有关的

Sh ru | inc crypto 只是关健字过滤而已 2. 故障倒换 failover

failover lan unit primary

failover lan interface testint Ethernet0/3 failover link testint Ethernet0/3

failover mac address Ethernet0/1 0018.1900.5000 0018.1900.5001 failover mac address Ethernet0/0 0018.1900.4000 0018.1900.4001 failover mac address Ethernet0/2 0018.1900.6000 0018.1900.6001 failover mac address Management0/0 0018.1900.7000 0018.1900.7001 failover interface ip testint 10.3.3.1 255.255.255.0 standby 10.3.3.2

注：最好配置虚拟MAC地址 sh failover显示配置信息

write standby写入到备用的防火墙中 failover命令集如下：

configure mode commands/options:

interface Configure the IP address and mask to be used for failover and/or stateful update information

interface-policy Set the policy for failover due to interface failures key Configure the failover shared secret or key

lan Specify the unit as primary or secondary or configure the interface and vlan to be used for failover communication link Configure the interface and vlan to be used as a link for

stateful update information

mac Specify the virtual mac address for a physical interface polltime Configure failover poll interval

replication Enable HTTP (port 80) connection replication

timeout Specify the failover reconnect timeout value for asymmetrically routed sessions sh failover 命令集如下：

history Show failover switching history

interface Show failover command interface information state Show failover internal state information

statistics Show failover command interface statistics information | Output modifiers

3. 配置telnet、ssh及http管理

username jiang password Csmep3VzvPQPCbkx encrypted privilege 15 aaa authentication enable console LOCAL aaa authentication telnet console LOCAL aaa authentication ssh console LOCAL aaa authorization command LOCAL

http 192.168.40.0 255.255.255.0 management ssh 192.168.40.0 255.255.255.0 inside 4. vpn常用管理命令

sh vpn-sessiondb full l2l 显示site to site 之vpn通道情况 sh ipsec stats 显示ipsec通道情况

sh vpn-sessiondb summary 显示vpn汇总信息 sh vpn-sessiondb detail l2l 显示ipsec详细信息 sh vpn-sessiondb detail svc 查看ssl client信息 sh vpn-sessiondb detail webvpn 查看webvpn信息

sh vpn-sessiondb detail full l2l 相当于linux下的ipsec whack ?Cstatus 如果没有建立连接，则表示ipsec通道还没有建立起来。 5. 配置访问权限

可以建立对象组，设定不同的权限，如： object-group network testgroup description test

network-object 192.168.100.34 255.255.255.255

access-list inside_access_in line 2 extended permit ip object-group all any access-group inside_access_in in interface inside 6. 配置sitetosite之VPN

crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto map outside_map 20 match address outside_cryptomap_20_1 crypto map outside_map 20 set pfs

crypto map outside_map 20 set peer 218.16.105.48

crypto map outside_map 20 set transform-set ESP-3DES-SHA crypto map outside_map interface outside

isakmp identity address isakmp enable outside

isakmp policy 10 authentication pre-share isakmp policy 10 encryption 3des isakmp policy 10 hash sha isakmp policy 10 group 2

isakmp policy 10 lifetime 86400

tunnel-group 218.16.105.48 type ipsec-l2l tunnel-group 218.16.105.48 ipsec-attributes pre-shared-key *

peer-id-validate nocheck

tunnel-group-map enable rules

注：打打PFS并设定以IP地址作为peer名，一个接口只能有一个加密图 7. webvpn配置（ssl vpn） webvpn

enable outside

character-encoding gb2312

csd image disk0:/securedesktop-asa-3.1.1.16.pkg svc image disk0:/sslclient-win-1.1.0.154.pkg 1 svc enable

customization customization1 title text TEST WebVPN system

title style background-color:white;color: rgb(51,153,0);border-bottom:5px groo ve #669999;font-size:larger;vertical-align:middle;text-align:left;font-weight:bold tunnel-group-list enable

注：也可通过ASDM图形界面进行配置 登录后，可访问内部资源，如下例：（客户端首先要安装Java插件jre-1_5_0-windows-i586.exe,并打开浏览器的ActiveX）

1) https://sslvpn.test.com.cn 输入用户名和密码 2) 出现工具条

3) 在Enter Web Address内输入192.168.40.8即可访问内部网站 4）在browse network输入192.168.40.8即可访问共享文件

5)点击application access，即可查看端口转发设置，如使用putty访问本机的2023端口，则即可通过ssh登录192.168.40.8 8. 远程拨入VPN 相关的ASA配置命令如下：

access-list inside_access_in extended permit ip object-group remotegroup any access-list inside_access_in extended permit icmp object-group remotegroup any access-list remotevpn_splitTunnelAcl standard permit 192.168.100.0 255.255.255.0 access-list vpnclient_splitTunnelAcl standard permit 192.168.100.0 255.255.255.0 ip local pool dialuserIP 192.168.101.1-192.168.101.254 mask 255.255.255.0 group-policy remotevpn attributes

dns-server value 202.96.128.68 192.168.40.16 default-domain value test.com.cn