配置PPP验证时CISCO路由器CHAP认证配置

来源:网络发布时间:2010-04-22

  在配置PPP验证时有PAP和CHAP的选择,其中PAP为明文传送用户名和口令,不安全。而CHAP则采用哈希值进行验证,口令不会在网上传送,所以安全性比较高。

  CHAP认证也是CCNA课程PPP教学时所需掌握的基本配置,其配置如下:

  拓扑: RA DTE--------DCE RB

  --------------------------------------

  RA#conf t

  RA(config)#username RB password hello

  RA(config)#int s0

  RA(config-if)#encap ppp

  RA(config-if)#ppp au chap

  RA(config-if)#end

  -------------------------------

  Router(config)#host RB

  RB(config)#username RA password hello

  RB(config)#int s0

  RB(config-if)#encap ppp

  RB(config-if)#ppp auth chap

  %LINK-3-UPDOWN: Interface Serial0, changed state to up

  %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to up

  ------------------------------------------------------

  RA#sh int s0

  Serial0 is up, line protocol is up              -------第一层二层UP

  Hardware is HD64570

  Internet address is 1.1.1.1/30

  MTU 1500 bytes, BW 1544 Kbit, DLY 1000 usec, rely 255/255, load 1/255

  Encapsulation PPP, loopback not set, keepalive set (10 sec)

  LCP Open                                      -----------打开

  Open: IPCP, CDPCP                             -----------打开

  Last input 00:00:00, output 00:00:00, output hang never

  Last clearing of show interface counters never

  Queueing strategy: fifo