Configuring PPPoE - Cisco

1 CHAPTER 17-1 Cisco 910 Industrial Router Software Configuration Guide, Release PPPoE This section describes how to configure the Point-to-Point over Ethernet ( PPPoE ) client on the Cisco 910 Industrial routers (hereafter referred to as the router). It includes the following topics: PPPoE Client Overview, page 17-1 Configuring PPPoE , page 17-1 Monitoring the PPPoE Client, page 17-3 PPPoE Client OverviewThe Point-to-Point over Ethernet ( PPPoE ) is a network protocol for encapsulating PPP frames inside Ethernet frame. PPPoE combines Ethernet and PPP, to provide an authenticated method of assigning IP addresses to client systems. The Cisco 910 Industrial Router can be configured as a PPPoE client, so that a tunnel can be established for the router to access the WAN. At system initialization, the PPPoE client establishes a session with the access concentrator by exchanging a series of packets. Once the session is established, a PPP link is set up, which includes authentication using Password Authentication protocol (PAP).

2 Once the PPP session is established, each packet is encapsulated in the PPPoE and PPP PPPoEThis section contains the following information: Configuring VPDN Group, page 17-2 Configuring Ethernet WAN Interface, page 17-2 Configuring the Dialer Interface, page 17-2 Connecting to the PPPoE Service, page 17-3 17-2 Cisco 910 Industrial Router Software Configuration Guide, Release 17 Configuring PPPoE Configuring PPPoEConfiguring VPDN GroupBeginning in privileged EXEC mode, follow these steps to configure the VPDN group: Configuring Ethernet WAN InterfaceBeginning in privileged EXEC mode, follow these steps to configure the Ethernet WAN interface: Configuring the Dialer InterfaceBeginning in privileged EXEC mode, follow these steps to configure the dialer interface:Specifies the dialing pool to use to connect to a specific destination subnetworkCommandPurposeStep 1configure terminalEnter global configuration 2vpdn-group numberCreate and associate a Virtual Private Dialup network (VPDN) group with a customer or VPDN number, enter the group 3request dialinCreate a request dial-in VPDN subgroup that configures the router to request the establishment of a dial-in tunnel to a tunnel server, and enters VPDN request-dialin group configuration 4protocol pppoeSpecify the PPPoE tunneling protocol that a VPDN subgroup will 5exitReturn to global configuration 6copy running-config startup-config(Optional)

3 Save your entries in the configuration 1configure terminalEnter global configuration 2interface type numberEnter interface configuration mode for the WAN 3pppoe-client dial-pool-number numberConfigure the PPPoE client and specifies the dialer interface to use for cloningStep 4exitReturn to global configuration 5copy running-config startup-config(Optional) Save your entries in the configuration 1configure terminalEnter global configuration 2interface dialer numberEnter interface configuration mode for the dialer 3ip address negotiatedSpecify that the IP address for a particular interface is obtained via PPP/IPCP address 4dialer-pool numberSpecify the dialer pool to use to connect to a specific destination 5dialer-group numberAssign the dialer interface to a dialer group. This command applies the interesting traffic definition to the interface. 17-3 Cisco 910 Industrial Router Software Configuration Guide, Release 17 Configuring PPPoE Monitoring the PPPoE ClientConnecting to the PPPoE ServiceBeginning in privileged EXEC mode, follow these steps to connect to the PPPoE service:To disconnect from the PPPoE service, use the no PPPoE privileged EXEC the PPPoE ClientUse the show interface Dialer global configuration command to display the dialer interface statistics.

4 The following example shows a sample output of the show interface Dialer command:Router# show interface Dialer 0 Link encap:Point-to-Point Protocolinet P-t- POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1RX packets:10 errors:0 dropped:0 overruns:0 frame:0TX packets:10 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:3 RX bytes:125 ( B) TX bytes:113 ( B)Step 6ppp authentication chapSet the PPP authentication method to Challenge Handshake Authentication Protocol (CHAP)Step 7ppp chap hostname usernameDefine an interface-specific CHAP 8ppp chap password passwordDefine an interface-specific CHAP 9exitReturn to global configuration 10copy running-config startup-config(Optional) Save your entries in the configuration 1configure terminalEnter global configuration 2pppoe profile_nameConnect to the PPPoE profile_name, specify the target tunnel 3exitReturn to global configuration 4copy running-config startup-config(Optional) Save your entries in the configuration file.

5 17-4 Cisco 910 Industrial Router Software Configuration Guide, Release 17 Configuring PPPoE Monitoring the PPPoE Client