R0106-HP MSR Router Series Layer 2 - WAN Command Reference(V7)

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Usage guidelines
A dial rule determines when an interface initiates DDR calls. You need to configure dial rules only on the
initiator of DDR calls.
You can configure a dial rule to match only IP packets or use an ACL to match packets.
Permitted protocol packets or packets that match a permit statement of an ACL are interesting packets.
When receiving an interesting packet, DDR does one of the following:
• Sends it out if a link is present and resets the idle-timeout timer.
• Originates a new call to set up a link if no link is present.
Denied protocol packets or packets that match a deny statement of an ACL are uninteresting packets.
When receiving an uninteresting packet, DDR does one of the following:
• Sends it out without resetting the idle-timeout timer if a link is present.
• Drops it if no link is present.
For DDR to forward packets correctly, you must configure a dial rule and associate it with the dialup
interface by using the dialer-group command.
Examples
#Create dialer group 1 and configure DDR to place calls for IP packets. Associate interface Serial
2/1/0 with dialer group 1.
<Sysname> system-view
[Sysname] dialer-group 1 rule ip permit
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] dialer-group 1
Related commands
dialer-group
display dialer
Use display dialer to display the DDR information for an interface.
Syntax
display dialer [ interface interface-type interface-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
interface interface-type interface-number: Specifies an interface by its type and number. If no interface is
specified, the command displays the DDR information for all interfaces.
Examples
# Display the DDR information for all interfaces.
<Sysname> display dialer
Dialer0: