Current configuration : 1224 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname AdslRouter
!
enable password emart
!
memory-size iomem 25
ip subnet-zero
!
!
!
ip ssh time-out 120
ip ssh authentication-retries 3
vpdn enable
!
vpdn-group ppoe
request-dialin
protocol pppoe
!
!
crypto mib ipsec flowmib history tunnel size 200
crypto mib ipsec flowmib history failure size 200
!
!
!
“interface ATM0
mtu 1500
no ip address
atm vc-per-vp 256
no atm ilmi-keepalive
pvc 0/32
pppoe-client dial-pool-number 1
!
dsl operating-mode auto
hold-queue 224 in”
!
interface FastEthernet0
ip address 192.168.10.5 255.255.255.0
ip nat inside
speed auto
!
“interface Dialer1
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
pulse-time 0
ppp authentication pap callin
ppp pap sent-username ad50098043 password 7 022A357D230707035E”
!
ip nat inside source list 1 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip http server
ip pim bidir-enable
!
access-list 1 permit any
dialer-list 1 protocol ip permit
!
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
password emartshmc20020828
login
!
no scheduler allocate
end
以上是一台cisco1700系列路由器的配置，请说明一下配置中两部分“”内容的每条命令的含 义，同时在该配置中，存在着一个很明显配置漏洞，请指出漏洞，并给出修补漏洞用的命令。