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ASA 8.4指令解析

前面發表了一篇文章是ASA 8.0版本的,後面用到8.4發現指令有很多不一樣,特發一篇8.4版本的指令可以和前面指令做對比和參考

 需要注意的是

1.這邊沒有nat 0,也就是說到DMZ區域不需旁路。

2.如果是ASA 5505的裝置,則需定義vlan端口位址然後把防火牆相應端口加入對應vlan.

:

ASA Version 8.4(2)                                      //版本8.4

!

hostname fw                                             

enable password 8Ry2YjIyt7RRXU24 encrypted              

passwd 2KFQnbNIdI.2KYOU encrypted

names

interface GigabitEthernet0

 nameif inside

 security-level 100

 ip address 192.168.1.254 255.255.255.0

interface GigabitEthernet1

 nameif dmz

 security-level 50

 ip address 172.16.1.254 255.255.255.0

interface GigabitEthernet2

 nameif outside

 security-level 0

 ip address 221.222.1.2 255.255.255.0

interface GigabitEthernet3

 shutdown

 no nameif

 no security-level

 no ip address

interface GigabitEthernet4

interface GigabitEthernet5

ftp mode passive

object network inside                     //定義nat内部網段

 subnet 0.0.0.0 0.0.0.0

object network outside                    //定義外網位址

 host 221.222.1.2

object network telnet                     //定義需釋出端口的内部伺服器位址

 host 172.16.1.2

object network www                        

 host 172.16.1.1

object network towww                       //定義NAT轉換的外部内址(此位址做靜态NAT)

 host 221.222.1.3

object network totelnet

 host 221.222.1.4

object network natoutside

 host 221.222.1.5

access-list outtodmz extended permit tcp any object www eq www       //定義需要放行的流量

access-list outtodmz extended permit tcp any object www eq telnet

access-list outtodmz extended permit tcp any object telnet eq telnet

access-list outtodmz extended permit tcp any object telnet eq www

pager lines 24

mtu dmz 1500

mtu outside 1500

mtu inside 1500

no failover

icmp unreachable rate-limit 1 burst-size 1

no asdm history enable

arp timeout 14400

object network inside                                         //定義動态多對一NAT

 nat (dmz,outside) dynamic interface

object network telnet                                         //定義端口轉換

 nat (dmz,outside) static interface service tcp telnet 2023

object network www                                            //定義靜态一對一NAT

 nat (dmz,outside) static towww

access-group outtodmz in interface outside                    //應用ACL到端口進行流量放行

route outside 0.0.0.0 0.0.0.0 221.222.1.1 1                   //預設路由

timeout xlate 3:00:00

timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00

timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00

timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

timeout tcp-proxy-reassembly 0:01:00

timeout floating-conn 0:00:00

dynamic-access-policy-record DfltAccessPolicy

user-identity default-domain LOCAL

no snmp-server location

no snmp-server contact

snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart

telnet timeout 5

ssh timeout 5

console timeout 0

threat-detection basic-threat

threat-detection statistics access-list

no threat-detection statistics tcp-intercept

class-map inspection_default

 match default-inspection-traffic

policy-map type inspect dns preset_dns_map

 parameters

  message-length maximum client auto

  message-length maximum 512

policy-map global_policy

 class inspection_default

  inspect dns preset_dns_map

  inspect ftp

  inspect h323 h225

  inspect h323 ras

  inspect ip-options

  inspect netbios

  inspect rsh

  inspect rtsp

  inspect skinny

  inspect esmtp

  inspect sqlnet

  inspect sunrpc

  inspect tftp

  inspect sip

  inspect xdmcp

  inspect icmp                                       

service-policy global_policy global

prompt hostname context

no call-home reporting anonymous

call-home

 profile CiscoTAC-1

  no active

  destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService

  destination address email [email protected]

  destination transport-method http

  subscribe-to-alert-group diagnostic

  subscribe-to-alert-group environment

  subscribe-to-alert-group inventory periodic monthly

  subscribe-to-alert-group configuration periodic monthly

  subscribe-to-alert-group telemetry periodic daily

crashinfo save disable

Cryptochecksum:ceec7cf7a060a0ab5127d816542bb2db

: end

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