<r1>dis cu
#
 version 5.20, Alpha 1011
#
 sysname r1
#              
interface Serial0/2/1
 link-protocol fr
#              
interface Serial0/2/1.1
 fr map ip 10.1.1.2 102
 fr dlci 102   
 ip address 10.1.1.1 255.255.255.0
#              
interface Serial0/2/1.2
 fr map ip 10.2.2.2 103
 fr dlci 103   
 ip address 10.2.2.1 255.255.255.0
[r2]dis cu
#
 version 5.20, Alpha 1011
#
 sysname r2
#              
interface Serial0/2/1
 link-protocol fr
 fr map ip 10.1.1.1 201
 ip address 10.1.1.2 255.255.255.0
<r3>dis cu
#
 version 5.20, Alpha 1011
#
 sysname r3
#
interface Serial0/2/1
 link-protocol fr
 fr map ip 10.2.2.1 301
 ip address 10.2.2.2 255.255.255.0
[fr-sw]dis cu
#
 version 5.20, Alpha 1011
#
 sysname fr-sw
#
interface Serial0/2/1
 link-protocol fr
 fr interface-type dce
 fr dlci 102
 fr dlci 103
#
interface Serial0/2/1.1
#
interface Serial0/2/1.2
#
interface Serial0/2/2
 link-protocol fr
 fr interface-type dce
 fr dlci 201

-------------------------------
做完以上配置的花在r1上可以分别ping通r2和r3
但是在r2或者R3上是没有对方路由的
我们可以先在r3上ping r2看看

[r3]ping 10.1.1.2
  PING 10.1.1.2: 56  data bytes, press CTRL_C to break
    Request time out
不通
查看下dis ip routing-table
[r3]dis ip routing-table
Routing Tables: Public
        Destinations : 5        Routes : 5

Destination/Mask    Proto  Pre  Cost         NextHop         Interface

10.2.2.0/24         Direct 0    0            10.2.2.2        S0/2/1
10.2.2.1/32         Direct 0    0            10.2.2.1        S0/2/1
10.2.2.2/32         Direct 0    0            127.0.0.1       InLoop0
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0
如果要ping通就还要做路由
分别在三台DTE路由设备上做rip
r1
#
rip 1
 peer 10.1.1.2
 peer 10.2.2.2
 network 10.0.0.0
r2
#
rip 1
 peer 10.1.1.1
 network 10.0.0.0
r3
#
rip 1
 peer 10.2.2.1
 network 10.0.0.0
然后在r3上ping r2
[r3]ping 10.1.1.2
  PING 10.1.1.2: 56  data bytes, press CTRL_C to break
    Reply from 10.1.1.2: bytes=56 Sequence=1 ttl=254 time=10 ms
OK通了，查看下dis ip routing-table
[r3]dis ip routing-table
Routing Tables: Public
        Destinations : 6        Routes : 6

Destination/Mask    Proto  Pre  Cost         NextHop         Interface

10.1.1.0/24         RIP    100  1            10.2.2.1        S0/2/1
10.2.2.0/24         Direct 0    0            10.2.2.2        S0/2/1
10.2.2.1/32         Direct 0    0            10.2.2.1        S0/2/1
10.2.2.2/32         Direct 0    0            127.0.0.1       InLoop0
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0

#
interface Serial0/2/3
 link-protocol fr
 fr interface-type dce
 fr dlci 301   
#

注意做rip的时候在network之后还要peer
因为rip是用广播或者组播方式通告的
但是在帧中继网络中是以单播发送