PPP协议封装、认证配置(doc 8页)

PPP协议封装、认证配置内容提要：
基本配置：
R1
Conf t
Ho R1
Int s0/0
Ip add 12.1.1.1 255.255.255.0
No sh
Encaps PPP
End
R2
Conf t
Ho R2
Int s0/0
Ip add 12.1.1.2 255.255.255.0
No sh
Encap  PPP
End
验证配置：
R1#sho int s0/0
Serial0/0 is up, line protocol is up
  Hardware is M4T
  Internet address is 12.1.1.1/24
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, LCP Open
  Open: IPCP, CDPCP, crc 16, loopback not set
  Keepalive set (10 sec)
  Restart-Delay is 0 secs
  Last input 00:00:03, output 00:00:02, output hang never
  Last clearing of "show interface" counters 00:05:56
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair

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