JUNOSe 9.1.x Link Layer Configuration Guide > Configuring Point-to-Point Protocol over Ethernet > Configuring PADM Messages

Configuring PADM Messages

You can configure PPPoE to issue and display a PPPoE Active Discovery Message (PADM). The PADM message is a control message that servers send to clients. The clients may act on the control message, but are not required to do so. There are two types of PADM messages:

• Message of the minute (MOTM)—Informs clients of interesting system information
• URL—Typically spawns an Internet browser with the specified URL as the initial page

You can configure the router to send PADM messages as follows:

• Send MOTM messages to all clients connected to the router.
• Send MOTM and URL messages to all clients connected to a subinterface.
• Configure profiles to send MOTM and URL messages to new clients created when the profile is dynamically attached to an IP interface.
  

  NOTE: You can use the pppoe motm command at three different points in the configuration process: Privileged Exec, Interface Configuration, and Profile Configuration modes. You can use the pppoe url command at two different points in the configuration process: Interface Configuration and Profile Configuration modes. Note the differences described in guidelines below.

  
  

pppoe motm

• Use to cause the PPPoE application to send a PADM message of the minute (MOTM) message to all PPPoE clients connected to the router. The MOTM string is passed with no changes.
• The message string is not saved in nonvolatile storage (NVS).
• Use in Privileged Exec mode.
• Example

host1#pppoe motm Router going down at 10:00 p.m.

• Use the no version to disable the message.

pppoe motm

• Use in the context of a PPPoE subinterface to cause the PPPoE application to send the specified PADM message to the client as it is configured (if connected).
• The message is also sent whenever the subinterface transitions from down to up.
• The message string is saved in nonvolatile storage (NVS).
• Use in Interface Configuration mode.
• Example

host1(config-if)#interface fastEthernet 1/0.1.1 

host1(config-if)#pppoe motm Router going down at 10:00 p.m.

• Use the no version to disable the message.

pppoe motm

• Use in a profile to cause the PPPoE application to send the string to the new client that is created when the profile is dynamically attached to an IP interface.
• The message string is saved in nonvolatile storage (NVS).
• Use in Profile Configuration mode.
• Example

host1(config-profile)#pppoe motm Router going down now

• Use the no version to disable the message.

pppoe url

• Use in the context of a PPPoE subinterface to cause the PPPoE application to send the specified PADM message to the client as it is configured (if connected).
• The message is also sent whenever the subinterface transitions from down to up.
• The message string is saved in nonvolatile storage (NVS).
• Use in Interface Configuration mode.
• Example

host1(config-if)#interface fastEthernet 1/0.1.1 

host1(config-if)#pppoe url http://www.relevanturl.com

• Use the no version to disable the message.

pppoe url

• Use in a profile to cause the PPPoE application to send the string to the new client that is created when the profile is dynamically attached to an IP interface.
• The message string is saved in nonvolatile storage (NVS).
• PPPoE substitutes the following characters for information in the specified URL string before transmitting:

• %U user and domain name
• %u user name
• %d domain name
• %D profile name
• %% % character

• Use in Profile Configuration mode.
• Example

host1(config-profile)#pppoe url http://www.relevanturl.com

• Use the no version to disable the message.