拓扑如图。
ASA1 配置如下：
ASA1(config)# sh run
: Saved
:
ASA Version 8.4(2)
!
hostname ASA1
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface GigabitEthernet0
nameif outside
security-level 0
ip address 100.1.1.2 255.255.255.0
!
interface GigabitEthernet1
nameif inside
security-level 100
ip address 10.1.1.1 255.255.255.0
!
interface GigabitEthernet2
shutdown
no nameif
no security-level
no ip address
!
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-all-outside
subnet 192.168.1.0 255.255.255.0
object network Internet-Mail
host 100.1.1.3
object network Mail
host 192.168.2.1
access-list ACL_IN extended permit ip any 192.168.1.0 255.255.255.0 要放行真实地址流量。
access-list ACL_IN extended permit ip any host 192.168.2.1
pager lines 24
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
icmp permit any echo inside
icmp permit any echo-reply inside
icmp permit any echo-reply outside
icmp permit any echo outside
no asdm history enable
arp timeout 14400
nat (inside,outside) source dynamic inside-all-outside interface
nat (inside,outside) source static Mail Internet-Mail
access-group ACL_IN in interface outside per-user-override
route outside 0.0.0.0 0.0.0.0 100.1.1.1 1
route inside 192.168.1.0 255.255.255.0 10.1.1.2 1
route inside 192.168.2.1 255.255.255.255 10.1.1.2 1
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
!
!
prompt hostname context
call-home reporting anonymous prompt 2
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:f7bcd91e681f64bf48949389f73a7bad
: end
ASA1(config)#
R1配置：
R1#sh run
Building configuration...
Current configuration : 901 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
ip subnet-zero
no ip icmp rate-limit unreachable
!
!
ip tcp synwait-time 5
!
!
no ip domain lookup
ip ssh break-string
ip audit notify log
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
no crypto isakmp enable
!
!
!
!
!
interface FastEthernet0/0
ip address 100.1.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 200.1.1.1 255.255.255.0
duplex auto
speed auto
!
ip classless
!
no ip http server
no ip http secure-server
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end
R2配置
R2#sh run
Building configuration...
Current configuration : 1184 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
username admin privilege 15 secret 5 $1$F/CN$2jRZOMetVkXKqQqMoWXab.
no aaa new-model
ip subnet-zero
no ip icmp rate-limit unreachable
!
!
ip tcp synwait-time 5
!
!
no ip domain lookup
ip ssh break-string
ip audit notify log
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
no crypto isakmp enable
!
!
!
!
!
interface Loopback0
ip address 192.168.1.1 255.255.255.0
!
interface Loopback1
ip address 192.168.2.1 255.255.255.255
!
interface FastEthernet0/0
ip address 10.1.1.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.1.1.1
!
no ip http server
no ip http secure-server
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
password 12345
login local
line vty 5 15
password 12345
login local
!
!
end
R2#
R3配置
R3#sh run
Building configuration...
Current configuration : 1101 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
username admin privilege 15 secret 5 $1$KU3j$.zpWsbfttmL8NCGFMZLLC1
no aaa new-model
ip subnet-zero
no ip icmp rate-limit unreachable
!
!
ip tcp synwait-time 5
!
!
no ip domain lookup
ip ssh break-string
ip audit notify log
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
no crypto isakmp enable
!
!
!
!
!
interface Loopback0
no ip address
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 200.1.1.2 255.255.255.0
duplex auto
speed auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 200.1.1.1
!
no ip http server
no ip http secure-server
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
password 12345
login local
line vty 5 15
password 12345
login local
!
!
end
R3#
