GAR router PPP Experiment

The configuration steps of the PPP experiment on the GAR router are the same as that of R2. The following uses R1 as an example. R1> enable // Enter enablePassword in user mode: // Enter the password zteR1 # R1 # config t Enter configuration commands, one per line. end with CTRL/Z. r1 (config) # R1 (config) # controller ce1_2/3 // enter the ce1 configuration mode R1 (config-control) # channel-group 1 timeslots 1-31 // configure the time slot R1 (config-control) # framing frame // configure the frame format of E1 R1 (config-control) # exit R1 (config) # interface ce1_2/3.1 // enter the sub-interface R1 (config-subif) # ip address 100.1.1.1 255.255.255.0 // configure the interface address R1 (c Onfig-subif) # encapsulation? Frame-relay Frame Relay networkshdlc Serial HDLC synchronousppp Point-to-Point Protocolx.25 X.25 networksR1 (config-subif) # encapsulation ppp // encapsulate pppR1 (config-subif) # ppp authentication? Chap Challenge handshake authentication protocolmode PPP authentication modepap Password authentication protocolserver PPP radius serverR1 (config-subif) # ppp authentication chap // configure the ppp authentication mode to chapR1 (config-subif) # ppp chap hostname zte // configure the authenticated user name zteR1 (config-subif) # ppp chap password zte // configure the authenticated password zteR1 (config-subif) # exit 15.7 verification method R2 after related configuration, on R1 observe Interface status R1 # show ip int brief // Check Interface Status Interface IP-Address Mas K AdminStatus PhyStatus failed/1 unassigned up down downserial_1/2 unassigned failed up down downserial_1/3 minutes failed up down downserial_1/4 unassigned failed up down failed/1 unassigned up down failed/ 3.1 100.1.1.1 255.255.255.0 up: we can see that the physical status and Protocol Status of ce1_2/3.1 are up, the two vrouters are successfully negotiated through PPP. In addition, you can ping the R2 interface address on R1, indicating that the link layer ppp protocol works normally. R1 # ping 100.1.1.2sending 5,100-byte ICMP echos to 100.1.1.2, timeout is 2 seconds !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 0/8/20 ms15.8 experiment conclusion PPP (Point-to-Point Protocol) is a widely used Wan protocol. It implements point-to-point connections from routers to routers over synchronous and asynchronous circuits. In most cases, the vro adopts the PPP Wan protocol as a non-authentication method. Try the non-Authentication and PAP authentication method again.