帧中继  PPP2  用户接入
r1:
 en
 config t
 hostname R1
 no ip domain-lookup
 lin 0
 exec-timeout 0 0
 logging syn
 exit

r2:
 en
 config t
 hostname R2
 no ip domain-lookup
 lin 0
 exec-timeout 0 0
 logging syn
 exit

r3:
 en
 config t
 hostname R3
 no ip domain-lookup
 lin 0
 exec-timeout 0 0
 logging syn
 exit

r1 config t
   frame-relay switching
   inter s1/0
   encapsulation frame-relay
   fram-relay intf-type dce
   clockrate 64000
   no shutdown
   exit
   int s2/0

   encapsulation frame-relay
   frame-relay intf-type dce
   clockrate 64000
   no shutdown
   exit

r1 int s2/0
   frame-relay route 203 int s1/0 302
   int s1/0
   frame-relay route 302 int s2/0 203
   end
r1 show frame-relay route

r2 config t
   int s1/0
   encapsulation frame-relay ?
   encapsulation frame-relay  默认是cisco 但你要确定所要设备都是 否

则不通
   int s2/0
   encapsulation frame-relay
   end
r2 show interface s1/0

r3 config t
   int s2/0
   encapsulation frame-relay
   no shutdown
   end
r3 show frame-relay route
   (看接口有没有起来,要注意所有的接口要noshutdown)
r2 show ip interface s1/0
   (看有没UP起来)
r3 show frame-relay route
   (看接口的状态)
r3 show int s2/0
   (看看它的封装格式)
---------------------------------------------------------------
step 2
pvc 通了 咱就做测试 配上IP地址

r2 config t
   int s1/0
   ip add 192.168.0.2 255.255.255.0
   no shutdown
   end
r3 config t
   int s2/0
   ip add 192.168.0.1 255.255.255.0
   no shutdown
   end
r2 ping 192.168.0.1
   .....

r2 show frame-relay lmi ?  查看LMCI 号码number
   show frame-relay lmi
r2 config t
   int s1/0
   frame-relay lmi-type  默认CISCO 配置时要记得两边一致 但同一路由

器的两个接口可以不一样
r1 config t
   int s2/0
   frame-relay lmi-type
 

r1 show frame-relay lmi

r2 show frame-relay lmi

r2 debug frame-relay lmi ?
r2 debug frame-relay lmi
   unde all
  
r1 debug frame-relay lni ints2/0
   unde  all
r2 show frame-relay pvc  查看DLCI号码
r2 ping 192.169.0.1
   !!!!!
r2 config t
   int s1/0
  
   end
r2 show frame-relay map  (帧中继映谢)

r3 ping 192.168.0.1   (ping不通自己因为frame-relay要封装先要查映谢)
   .....
---------------------------------------------------------------
现在我们给R3自己做条映谢
r3 config t
   int s2/0
   frame-relay map ? ()
   frame-relay map ip ?    (第三层协议)
   frame-relay map ip 192.168.0.1 ?   (目标地址)
   frame-relay map ip 192.168.0.1 302 ?      (DLCI号码)
   frame-relay map ip 192.168.0.1 302 broadcast  (支持广播)
   end
r3 show frame-relay map

r3 ping 192.168.0.1
   !!!!!
-------------------------------------------------------------------
现在我们要关掉动态这个映谢 因为动态的不稳定
r2 config t
   int s1/0
   no frame-relay inverse-arp
   end
r3 config t
   int s2/0
   no frame-relay inverse-arp
   end
r3 show frame-relay          (看看那条命令是不是确实敲进来了)

r2 show frame-relay map

r2 clear frame-relay map      (清除缓存)
  
r2 ping 192.168.0.1
   ....
我们需要做静态映谢
r2 config t
   int s1/0
   frame-relay map ip ?
   frame-relay map ip 192.168.0.1 ?
   frame-relay map ip 192.168.0.1 203 broadcast
   end
r2 show frame-relau map

r3 config t
   int s2/0
   frame-relay map ip 192.168.0.2 302 broadcast
   end
r3 show frame-relay map

r2 ping 192.168.0.1
   !!!!

r2 config t
   int lo 0
   ip add 2.2.2.2 255.255.255.255
   exit

r3 config t
   int lo 0
   ip add 3.3.3.3 255.255.255.255
   exit

r2 config t
   router rip
   ver 2
   no auto-summary
   network 2.0.0.0
   network 192.168.0.0
   end

r3 config t
   router  rip
   ver 2
   no auto-summary
   network 3.0.0.0
   network 192.168.0.0
   end

r2 show ip route rip
r3 show ip route rip

r2 debug ip rip
   clear ip route *

   可以看到它发出了192.168.0.0 这说明水平分割split horizon没效啊
   unde all
r2 show ip int s1/0
   里面有一句split horizon is disabled它默认就关闭了
r2 config t
   int s1/0
   ip split-horizon  (打开水平分割)
   end
 

 


  

    

 

 

---------------------------------------------------------
frame-relay inverse-arp  反ARP 动态映谢 默认的
r1-r3首先要ip地址 以太网 还有MAC地址 而frane-relay 是个二层的在

frame-relay是以DLCI号码来区分的
它由LMI协议动态获取
PVC在二层就隔离了 所以你和别的企业ip地址一样也没关系 它看DLCI号码的