ASA 8.4命令解析
前面发表了一篇文章是ASA 8.0版本的，后面用到8.4发现命令有很多不一样，特发一篇8.4版本的命令可以和前面命令做对比和参考
需要注意的是
1.这边没有nat 0，也就是说到DMZ区域不需旁路。
2.如果是ASA 5505的设备,则需定义vlan端口地址然后把防火墙相应端口加入对应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
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet5
shutdown
no nameif
no security-level
no ip address
!
ftp mode passive
object network inside //定义nat内部网段
subnet 0.0.0.0 0.0.0.0
object network outside //定义外网地址
host 221.222.1.2
object network telnet //定义需发布端口的内部服务器地址
host 172.16.1.2
object network www
host 172.16.1.1
object network towww //定义NAT转换的外部内址(此地址做静态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 //定义需要放行的流量
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 //定义动态多对一NAT
nat (dmz,outside) dynamic interface
object network telnet //定义端口转换
nat (dmz,outside) static interface service tcp telnet 2023
object network www //定义静态一对一NAT
nat (dmz,outside) static towww
access-group outtodmz in interface outside //应用ACL到端口进行流量放行
route outside 0.0.0.0 0.0.0.0 221.222.1.1 1 //默认路由
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 h423 0:05:00 h325 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 h423 h325
inspect h423 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 callhome@cisco.com
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
ASA QOS限速实例
access-list qos extended permitip host 192.168.1.10 host 192.168.2.10
access-list qos extended permitip host 192.168.2.10 host 192.168.1.10
class-map qos
match access-list qos
policy-map qos
class qos
police output 10000
police input 10000
service-policy qos interfaceinside
注意：
如果流量是已经建立的会话,那么数据包不会去找新建立的策略
只有在新建立的策略以后新生成的会话,才会撞击这个策略
http://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/113396-asa-packet-flow-00.html
8.3以后若有NAT， ACL需匹配源实际IP地址。
