Cisco ASA 5505 防火墙常用配置案例

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Cisco ASA 5505 防火墙常用配置案例

2024-01-05 11:16| 来源: 网络整理| 查看: 265

interface Vlan2nameif outside                            --------------------对端口命名外端口 security-level 0                          --------------------设置端口等级ip address X.X.X.X 255.255.255.224        --------------------调试外网地址!interface Vlan3nameif inside                             --------------------对端口命名内端口    security-level 100                        --------------------调试外网地址ip address 192.168.1.1 255.255.255.0      --------------------设置端口等级!interface Ethernet0/0switchport access vlan 2                  --------------------设置端口VLAN与VLAN2绑定!interface Ethernet0/1switchport access vlan 3                  --------------------设置端口VLAN与VLAN3绑定!interface Ethernet0/2shutdown!interface Ethernet0/3shutdown!interface Ethernet0/4shutdown!interface Ethernet0/5shutdown!interface Ethernet0/6shutdown!interface Ethernet0/7shutdown!passwd 2KFQnbNIdI.2KYOU encryptedftp mode passivedns domain-lookup insidedns server-group DefaultDNSname-server 211.99.129.210name-server 202.106.196.115access-list 102 extended permit icmp any any           ------------------设置ACL列表(允许ICMP全部通过)access-list 102 extended permit ip any any             ------------------设置ACL列表(允许所有IP全部通过)pager lines 24mtu outside 1500 mtu inside 1500icmp unreachable rate-limit 1 burst-size 1no asdm history enablearp timeout 14400global (outside) 1 interface                           ------------------设置NAT地址映射到外网口nat (inside) 1 0.0.0.0 0.0.0.0                         ------------------NAT地址池(所有地址)access-group 102 in interface outside           ------------------设置ACL列表绑定到外端口route outside 0.0.0.0 0.0.0.0 x.x.x.x 1         ------------------设置到外网的默认路由timeout xlate 3:00:00timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00timeout uauth 0:05:00 absoluteno snmp-server locationno snmp-server contactsnmp-server enable traps snmp authentication linkup linkdown coldstarttelnet 0.0.0.0 0.0.0.0 inside                         ------------------设置TELNET所有地址进入telnet timeout 5ssh 0.0.0.0 0.0.0.0 outside                           ------------------设置SSH所有地址进入ssh timeout 30ssh version 2console timeout 0          !dhcpd address 192.168.1.100-192.168.1.199 inside                ------------------设置DHCP服务器地址池dhcpd dns 211.99.129.210 202.106.196.115 interface inside       ------------------设置DNS服务器到内网端口dhcpd enable inside                                             ------------------设置DHCP应用到内网端口!

前几天去客户那调试CISCO-ASA-5505设备,第一次摸,跟PIX一样,呵呵.没有技术含量,都是最基本的.其他业务配置暂时没配,会及时更新的.Cisco ASA5505配置cisco, config, telnet, 防火墙, Cisco1.配置防火墙名ciscoasa> enable ciscoasa# configure terminal ciscoasa(config)# hostname asa5505 2.配置telnetasa5505(config)#telnet 192.168.1.0 255.255.255.0 inside ↑//允许内部接口192.168.1.0网段telnet防火墙 3.配置密码asa5505(config)# password cisco ------------------远程密码 asa5505(config)# enable password cisco ------------------特权模式密码 4.配置IP asa5505(config)# interface vlan 2 ------------------进入vlan2 asa5505(config-if)# ip address 218.16.37.222 255.255.255.192 ------------------vlan2配置IP asa5505(config)#show ip address vlan2 ------------------验证配置 5.端口加入vlan asa5505(config)# interface e0/3 ------------------进入接口e0/3 asa5505(config-if)# switchport access vlan 3 ------------------接口e0/3加入vlan3 asa5505(config)# interface vlan 3 ------------------进入vlan3 asa5505(config-if)# ip address 10.10.10.36 255.255.255.224 ------------------vlan3配置IP asa5505(config-if)# nameif dmz ------------------vlan3名 asa5505(config-if)# no shutdown ------------------开启 asa5505(config-if)# show switch vlan ------------------验证配置 6.最大传输单元MTUasa5505(config)#mtu inside 1500 ------------------inside最大传输单元1500字节 asa5505(config)#mtu outside 1500 ------------------outside最大传输单元1500字节 asa5505(config)#mtu dmz 1500 ------------------dmz最大传输单元1500字节 7.配置arp表的超时时间asa5505(config)#arp timeout 14400 ------------------arp表的超时时间14400秒 8.FTP模式asa5505(config)#ftp mode passive ------------------FTP被动模式 9.配置域名asa5505(config)#domain-name Cisco.com 10.启动日志asa5505(config)#logging enable ------------------启动日志 asa5505(config)#logging asdm informational ------------------启动asdm报告日志 asa5505(config)#Show logging ------------------验证配置 11.启用http服务asa5505(config)#http server enable   ------------------启动HTTP server,便于ASDM连接。 asa5505(config)#http 0.0.0.0 0.0.0.0 outside ------------------对外启用ASDM连接 asa5505(config)#http 0.0.0.0 0.0.0.0 inside  ------------------对内启用ASDM连接 12.控制列表access-list acl_out extended permit tcp any any eq www ------------------允许tcp协议80端口入站 access-list acl_out extended permit tcp any any eq https ------------------允许tcp协议443端口入站 access-list acl_out extended permit tcp any host 218.16.37.223 eq ftp ↑//允许tcp协议21端口到218.16.37.223主机 access-list acl_out extended permit tcp any host 218.16.37.224 eq 3389 ↑//允许tcp协议3389端口到218.16.37.224主机 access-list acl_out extended permit tcp any host 218.16.37.225 eq 1433 ↑//允许tcp协议1433端口到218.16.37.225主机 access-list acl_out extended permit tcp any host 218.16.37.226 eq 8080 ↑//允许tcp协议8080端口到218.16.37.226主机 asa5505(config)#show access-list ------------------验证配置 13.设置路由asa5505(config)#route dmz 10.0.0.0 255.0.0.0 10.10.10.33   1 ↑//静态路由到10.0.0.0网段经过10.10.10.33网关跳数为1 asa5505(config)#route outside 0.0.0.0 0.0.0.0 218.16.37.193   1 ↑//默认路由到所有网段经过218.16.37.193网关跳数为1 asa5505# show route ------------------显示路由信息 14.静态NATasa5505(config)# static (inside,outside) 218.16.37.223 192.168.1.6 netmask 255.255.255.255 ↑//外网218.16.37.223映射到内网192.168.1.6 asa5505(config)#access-list acl_out extended permit icmp any any ↑//控制列表名acl_out允许ICMP协议 asa5505(config)#access-group acl_out in interface outside ↑//控制列表acl_out应用到outside接口 asa5505(config)#static (inside,dmz) 10.10.10.37 192.168.1.16       netmask 255.255.255.255 ↑//dmz10.10.10.37映射到内网192.168.1.16 asa5505(config)#access-list acl_dmz extended permit icmp any any ↑//控制列表名acl_dmz允许ICMP协议 asa5505(config)#access-group  acl_dmz in interface dmz -----------------控制列表acl_out应用到dmz接口  asa5505(config)#Show nat ------------------验证配置 15.动态NATasa5505(config)#global(outside)   1   218.201.35.224-218.201.35.226 ------------------定义全局地址池 asa5505(config)#nat(inside)   1   192.168.1.20-192.168.1.22 ------------------内部转换地址池 asa5505(config)# show xlate ------------------验证配置 16.基于端口NAT(PAT)asa5505(config)#global (outside)   2   interface ----------------定义全局地址即outside地址:218.16.37.222 asa5505(config)#nat (inside)   2   192.168.1.0 255.255.255.0 ------------------内部转换地址池 asa5505(config)# show xlate ------------------验证配置 17.基于LAN故障倒换(failover)1).主防火墙配置 asa5505(config)#failover mac addr outside 001a.2b3c.4d11 001a.2b3c.4w12----故障倒换虚拟MAC地址 asa5505(config)#failover mac addr inside 001a.2b3c.4d21 001a.2b3c.4w22-----故障倒换虚拟MAC地址 asa5505(config)#failover mac addr inside 001a.2b3c.4d21 001a.2b3c.4w32-----故障倒换虚拟MAC地址 asa5505(config)#failover ------------------启动故障倒换 asa5505(config)#failover lan unit primary ------------------设置主要防火墙 asa5505(config)#failover lan interface standby Vlan4 ------------------故障倒换接口名standby asa5505(config)#failover interface ip standby 172.168.32.1 255.255.255.252 standby 172.168.32.2 ↑//配置主防火墙IP:172.168.32.1,备用防火墙IP:172.168.32.2 asa5505# show failover ------------------验证配置 2).备防火墙配置 asa5505(config)#failover mac addr outside 001a.2b3c.4d11 001a.2b3c.4w12----故障倒换虚拟MAC地址 asa5505(config)#failover  mac addr inside 001a.2b3c.4d21  001a.2b3c.4w22------故障倒换虚拟MAC地址asa5505(config)#failover mac addr inside  001a.2b3c.4d21 001a.2b3c.4w32------故障倒换虚拟MAC地址asa5505(config)#failover  ------------------启动故障倒换 asa5505(config)#failover lan unit secondary ------------------设置备用防火墙 asa5505(config)#failover lan interface standby Vlan4 ------------------故障倒换接口名standby asa5505(config)#failover interface ip standby 172.168.32.1 255.255.255.252 standby 172.168.32.2 ↑//配置主防火墙IP:172.168.32.1,备用防火墙IP:172.168.32.2 asa5505# show failover ------------------验证配置 18.显示mac地址asa5505# show switch mac-address-table 19.保存配置asa5505#  write memoryCisco ASA 5505防火墙地址映射问题解决前些天帮朋友配置一台Cisco ASA5505防火墙,  映射总是不成功. 在网上也看到很多朋友遇到了这种问题,都在寻问这个解决方法.有人已经将问题解决了,但没给出解决方案.    也许这并不是一个很复杂的难题,但我希望通过博客能帮助朋友们及时得到这个小问题的处理.基本情况:  WAN: 221.221.147.195    Gateway: 221.221.147.200   LAN: 192.168.0.1内网中有一台服务器,地址: 192.168.0.10    端口: 8089 故障描述:   内网可正常连接至服务器,外网无法连接.   端口映射出现问题.解决方法:   命令行错误, 已更正并解决. 问题重点:   采用 "static (inside,outside) 221.221.147.195 192.168.0.10 tcp 8089" 映射.目前配置如下: ASA Version 7.2(2)!hostname ciscoasaenable password 8Ry2YjIyt7RRXU24 encryptednames!interface Vlan1nameif insidesecurity-level 100ip address 192.168.0.1 255.255.255.0!interface Vlan2nameif outsidesecurity-level 0ip address 221.221.147.195 255.255.255.252!interface Ethernet0/0switchport access vlan 2!interface Ethernet0/1!interface Ethernet0/2!!interface Ethernet0/4!interface Ethernet0/5!interface Ethernet0/6!interface Ethernet0/7!passwd 2KFQnbNIdI.2KYOU encryptedftp mode passiveaccess-list 101 extended permit tcp any host 221.221.147.195 eq 8089access-list 101 extended permit icmp any anyaccess-list 101 extended permit tcp any anyaccess-list 101 extended permit udp any anypager lines 24logging asdm informationalmtu inside 1500mtu outside 1500icmp unreachable rate-limit 1 burst-size 1no asdm history enablearp timeout 14400global (outside) 1 interfacestatic (inside,outside) 221.221.147.195 192.168.0.10 netmask 255.255.255.255 tcp 8089 0access-group 101 in interface outsideroute outside 0.0.0.0 0.0.0.0 221.221.147.200 1timeout xlate 3:00:00timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00timeout uauth 0:05:00 absolutehttp server enableno snmp-server locationno snmp-server contactsnmp-server enable traps snmp authentication linkup linkdown coldstarttelnet timeout 5ssh timeout 5console timeout 0dhcpd auto_config outside!!class-map inspection_defaultmatch default-inspection-traffic!policy-map type inspect dns preset_dns_mapparameters   message-length maximum 512policy-map global_policyclass inspection_default   inspect dns preset_dns_map   inspect ftp   inspect h323 h225   inspect h323 ras   inspect rsh   inspect rtsp   inspect esmtp   inspect sqlnet   inspect skinny   inspect sunrpc   inspect xdmcp   inspect sip   inspect netbios   inspect tftp!service-policy global_policy globalprompt hostname contextCryptochecksum:30e219cbc04a4c919e7411de55e14a64: endciscoasa(config)#------------------------------------------------------------在找寻解决方案过程中,有朋友做了重要提示, 采用: static (inside,outside) int 192.168.0.10 tcp 8089 做映射,但出现警告提示:WARNING: static redireting all traffics at outside interface;WARNING: all services terminating at outside interface are disabled.后来将命令改成:   static (inside,outside) 221.221.147.195 192.168.0.10 tcp 8089   问题解决.ASA5505配置笔记                                    ASA5505配置笔记1.IP地址配置   #int vlan1   #>nameif outside   #security-level 0   #ip address 172.16.1.1 255.255.0.0.   #end   #int vlan 2   #nameif insiede   #security-levlel 100   #ip address 192.168.1.1 255.255.255.0   #end2.把端口指定到相应VLAN中#int Eth0/0#switchport access vlan 1end#int Eth0/1switchport access vlan 2end#exit3.配置Http.telnet和ssh管理#username xxx password xxxxxx encrypted privilege 15 #aaa authentication enable console LOCAL#aaa authentication telnet console LOCAL#aaa authentication http console LOCAL#aaa authentication ssh console LOCAL#aaa autoentication command LOCAL#http server enable#http 192.168.1.0 255.255.255.0 inside#telnet 192.168.1.0 255.255.255.0 inside#ssh 192.168.1.0 255.255.255.0 inside#crypto key generate rsa(打开SSH服务)4.×××配置   ×××配置可在ASDM模式下配置,具体配置略CISCO ASA 5510实际配置案例及详解去年卖个某大型企业的ASA5510防火墙,附实际的配置,并且都解释了得很清楚,非常值得参考的资料!2008-12-15 11:07ASA5510# SHOW RUN: Saved:ASA Version 7.0(6)!hostname ASA5510enable password 2KFQnbNIdI.2KYOU encryptednamesdns-guard!interface Ethernet0/0 此接口为外部网络接口nameif outside 设置为 OUTSIDE 外部接口模式security-level 0 外部接口模式安全级别为 最高 0ip address 192.168.3.234 255.255.255.0 添加外部IP地址 (一般为电信÷网通提供)!interface Ethernet0/1此接口为内部网络接口nameif inside设置为 INSIDE 内部接口模式security-level 100内部接口模式安全级别为 100ip address 10.1.1.1 255.255.0.0添加内部IP地址 (一般为公司自行分配)!interface Ethernet0/2 没用到 SHUTDOWN 关闭shutdownno nameifno security-levelno ip address!interface Management0/0没用到 SHUTDOWN 关闭nameif managementsecurity-level 100ip address 192.168.1.1 255.255.255.0 没用,用网线连接管理的端口。management-only!passwd 2KFQnbNIdI.2KYOU encryptedftp mode passivepager lines 24logging asdm informationalmtu outside 1500mtu inside 1500mtu management 1500no asdm history enablearp timeout 14400global (outside) 1 interface 一定要打表示 PAT端口扩展:“1”为其NAT IDnat (inside) 1 10.1.0.0 255.255.0.0   转换所有10.1.0.0 的内部地址route outside 0.0.0.0 0.0.0.0 192.168.3.254 1 内部所有地址访问外部地址出口为 电信-网通 提供的网关地址timeout xlate 3:00:00timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00timeout uauth 0:05:00 absolutehttp server enablehttp 192.168.1.0 255.255.255.0 managementno snmp-server locationno snmp-server contactsnmp-server enable traps snmp authentication linkup linkdown coldstarttelnet timeout 5ssh timeout 5console timeout 0dhcpd address 10.1.1.30-10.1.1.200 inside DHCP 自动提供分配范围 为10.1.1.30-200dhcpd address 192.168.1.2-192.168.1.254 management 无效dhcpd dns 192.168.0.1 DNS 添加:可以是电信网通提供 直接添加,或者自己的DNS服务器地址。dhcpd lease 3600dhcpd ping_timeout 50dhcpd domain suzhou.jy 域名dhcpd enable inside 打开内部网段自动分配dhcpd enable management 无效Cryptochecksum:6148633dac00f8f7a3418833f98d5ad4access-group icmp_in in interface outside 这两句表示,access-list icmp_in extended permit icmp any any 允许PING包发送或接收: end



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