注：这个实验同样出现了上个实验所出现的问题，配置好后，接口怎么都起不来，不管它，过了10分钟左右自己莫名其妙的UP起来。郁闷！还是仅把配置贴出来。。

Router#show run Building configuration... Current configuration : 1031 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Router ! ! ip subnet-zero ! ! ! ! ! ! ! ! ! ! fax interface-type fax-mail mta receive maximum-recipients 0 ! ! ! ! interface FastEthernet0/0  no ip address  shutdown  duplex auto  speed auto ! interface FastEthernet0/1  no ip address  shutdown  duplex auto  speed auto ! interface Serial1/0  no ip address  shutdown  serial restart_delay 0 ! interface Serial1/1  no ip address  shutdown  serial restart_delay 0 ! interface Serial1/2  no ip address  encapsulation frame-relay  serial restart_delay 0  frame-relay lmi-type ansi ! interface Serial1/2.1 multipoint  ip address 172.16.1.1 255.255.255.0  frame-relay map ip 172.16.1.3 200  frame-relay map ip 172.16.1.2 100 ! interface Serial1/3  no ip address  shutdown  serial restart_delay 0 ! ip classless ip http server ip pim bidir-enable !          ! ! ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end

Router#show run Building configuration... Current configuration : 946 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Router ! ! ip subnet-zero ! ! ! ! ! ! ! ! ! ! fax interface-type fax-mail mta receive maximum-recipients 0 ! ! ! ! interface FastEthernet0/0  no ip address  shutdown  duplex auto  speed auto ! interface FastEthernet0/1  no ip address  shutdown  duplex auto  speed auto ! interface Serial1/0  no ip address  shutdown  serial restart_delay 0 ! interface Serial1/1  no ip address  shutdown  serial restart_delay 0 ! interface Serial1/2  ip address 172.16.1.2 255.255.255.0  encapsulation frame-relay  serial restart_delay 0  frame-relay map ip 172.16.1.1 101  frame-relay lmi-type ansi ! interface Serial1/3  no ip address  shutdown  serial restart_delay 0 ! ip classless ip http server ip pim bidir-enable ! ! ! ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end

Router#show run Building configuration... Current configuration : 946 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Router ! ! ip subnet-zero ! ! ! ! ! ! ! ! ! ! fax interface-type fax-mail mta receive maximum-recipients 0 ! ! ! ! interface FastEthernet0/0  no ip address  shutdown  duplex auto  speed auto ! interface FastEthernet0/1  no ip address  shutdown  duplex auto  speed auto ! interface Serial1/0  no ip address  shutdown  serial restart_delay 0 ! interface Serial1/1  no ip address  shutdown  serial restart_delay 0 ! interface Serial1/2  ip address 172.16.1.3 255.255.255.0  encapsulation frame-relay  serial restart_delay 0  frame-relay map ip 172.16.1.1 201  frame-relay lmi-type ansi ! interface Serial1/3  no ip address  shutdown  serial restart_delay 0 ! ip classless ip http server ip pim bidir-enable ! ! ! ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end

Router#show run Building configuration... Current configuration : 1292 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Router ! ! ip subnet-zero ! ! ! frame-relay switching ! ! ! ! ! ! ! fax interface-type fax-mail mta receive maximum-recipients 0 ! ! ! ! interface FastEthernet0/0  no ip address  shutdown  duplex auto  speed auto ! interface FastEthernet0/1  no ip address  shutdown  duplex auto  speed auto ! interface Serial1/0  no ip address  encapsulation frame-relay  serial restart_delay 0  clockrate 64000  frame-relay lmi-type ansi  frame-relay intf-type dce  frame-relay route 100 interface Serial1/1 101  frame-relay route 200 interface Serial1/2 201 ! interface Serial1/1  no ip address  encapsulation frame-relay  serial restart_delay 0  clockrate 64000  frame-relay lmi-type ansi  frame-relay intf-type dce  frame-relay route 101 interface Serial1/0 100 ! interface Serial1/2  no ip address  encapsulation frame-relay  serial restart_delay 0  clockrate 64000  frame-relay lmi-type ansi  frame-relay route 201 interface Serial1/0 200 ! interface Serial1/3  no ip address  shutdown  serial restart_delay 0 ! ip classless ip http server ip pim bidir-enable ! ! ! ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end