帧中继配置
实验环境：Dynamips搭的虚拟环境，帧中继交换机由3640模拟
实验目的：实现各网络在帧中继的环境下互通
R2(帧中继交换机)#sh run
......
!
frame-relay switching //全局模式下将路由器模拟成帧中继交换机
!
interface Serial1/0
no ip address
encapsulation frame-relay //指定接口下封装FR
serial restart-delay 0
clock rate 64000 //必须配置DCE时钟才能与DTE路由器连接
frame-relay lmi-type cisco //指定FR的LMI类型
frame-relay intf-type dce //在当前接口下指定该设备为DCE设备
frame-relay route 104 interface Serial1/1 401 //FR到达其他路由器的路径，frame-relay route 本地DLCI interface 目的DLCI的出接口 目的DLCI
frame-relay route 105 interface Serial1/2 501
!
interface Serial1/1
no ip address
encapsulation frame-relay
serial restart-delay 0
clock rate 64000
frame-relay lmi-type cisco
frame-relay intf-type dce
frame-relay route 401 interface Serial1/0 104
frame-relay route 405 interface Serial1/2 504
!
interface Serial1/2
no ip address
encapsulation frame-relay
serial restart-delay 0
clock rate 64000
frame-relay lmi-type cisco
frame-relay intf-type dce
frame-relay route 501 interface Serial1/0 105
frame-relay route 504 interface Serial1/1 405
!
......
============================================
R1#sh run
!
......
interface Serial1/0
ip address 23.1.1.1 255.255.255.0
encapsulation frame-relay
serial restart-delay 0
frame-relay map ip 23.1.1.3 104 bro //映射目的网络与本地DLCI
frame-relay map ip 23.1.1.4 105 bro
frame-relay lmi-type cisco
router eigrp 90
network 10.1.1.1 0.0.0.0
network 23.1.1.1 0.0.0.0
no auto-summary
......
!
============================================
R3#sh run
......
interface Serial1/1
ip address 23.1.1.3 255.255.255.0
encapsulation frame-relay
serial restart-delay 0
frame-relay map ip 23.1.1.1 401 bro
frame-relay map ip 23.1.1.4 405 bro
frame-relay lmi-type cisco
router eigrp 90
network 172.16.1.3 0.0.0.0
network 23.1.1.3 0.0.0.0
no auto-summary
......
!
============================================
R4#sh run
......
interface Serial1/2
ip address 23.1.1.4 255.255.255.0
encapsulation frame-relay
serial restart-delay 0
frame-relay map ip 23.1.1.1 501 bro
frame-relay map ip 23.1.1.3 504 bro
frame-relay lmi-type cisco
router eigrp 90
network 23.1.1.4 0.0.0.0
network 192.168.1.4 0.0.0.0
no auto-summary
......
!
===========================================
注：
no fram inv arp 禁止动态生成PVC列表，因为在真实环境中不会存在这样的情况（租用PVC都是要钱的，都是静态指定的），建议在接口上配置。 配合使用的命令有no arp frame-relay
