Auth-proxy 認証発信（Cisco IOS Firewall と NAT）の設定

Current configuration:
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname security-3640
!
aaa new-model
aaa group server tacacs+ RTP
 server 171.68.118.115
!
aaa authentication login default local group RTP none
aaa authorization exec default group RTP none
aaa authorization auth-proxy default group RTP
enable secret 5 $1$vCfr$rkuU6HLmpbNgLTg/JNM6e1
enable password ww
!
username john password 0 doe
!
ip subnet-zero
!
ip inspect name myfw cuseeme timeout 3600
ip inspect name myfw ftp timeout 3600
ip inspect name myfw http timeout 3600
ip inspect name myfw rcmd timeout 3600
ip inspect name myfw realaudio timeout 3600
ip inspect name myfw smtp timeout 3600
ip inspect name myfw sqlnet timeout 3600
ip inspect name myfw streamworks timeout 3600
ip inspect name myfw tftp timeout 30
ip inspect name myfw udp timeout 15
ip inspect name myfw tcp timeout 3600
ip inspect name myfw vdolive
ip auth-proxy auth-proxy-banner
ip auth-proxy auth-cache-time 10
ip auth-proxy name list_a http
ip audit notify log
ip audit po max-events 100
!
process-max-time 200
!
interface Ethernet0/0
 ip address 10.31.1.150 255.255.255.0
 ip access-group 116 in
 ip nat inside
 ip inspect myfw in
 ip auth-proxy list_a
 no ip route-cache
 no ip mroute-cache
!
interface Ethernet1/0
 ip address 11.11.11.11 255.255.255.0
 ip access-group 101 in
 ip nat outside
!         
ip nat pool outsidepool 11.11.11.20 11.11.11.30 netmask 255.255.255.0
ip nat inside source list 1 pool outsidepool
ip classless
ip route 0.0.0.0 0.0.0.0 11.11.11.1
ip route 171.68.118.0 255.255.255.0 10.31.1.1
ip http server
ip http authentication aaa
!
access-list 1 permit 10.31.1.0 0.0.0.255
access-list 101 deny   ip 10.31.1.0 0.0.0.255 any
access-list 101 deny   ip 127.0.0.0 0.255.255.255 any
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 unreachable
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 echo-reply
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 packet-too-big
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 time-exceeded
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 traceroute
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 administratively-prohibited
access-list 101 permit icmp any 11.11.11.0 0.0.0.255 echo
access-list 116 permit tcp host 10.31.1.47 host 10.31.1.150 eq www
access-list 116 deny   tcp host 10.31.1.47 any
access-list 116 deny   udp host 10.31.1.47 any
access-list 116 deny   icmp host 10.31.1.47 any
access-list 116 permit tcp 10.31.1.0 0.0.0.255 any
access-list 116 permit udp 10.31.1.0 0.0.0.255 any
access-list 116 permit icmp 10.31.1.0 0.0.0.255 any
access-list 116 permit icmp 171.68.118.0 0.0.0.255 any
access-list 116 permit tcp 171.68.118.0 0.0.0.255 any
access-list 116 permit udp 171.68.118.0 0.0.0.255 any
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
tacacs-server host 171.68.118.115
tacacs-server key cisco
radius-server host 171.68.118.115 auth-port 1645 acct-port 1646
radius-server key cisco
!
line con 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 password ww
!
end