HP MSR Router Series

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Associating a dial rule with a dialup interface
A dial rule determines when a dialup 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 performs one of the following tasks:
• Sends it out if a link is present and resets the idle-timeout timer.
• Originates a new call to establish 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 performs one of the following tasks:
• 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, configure a dial rule and associate it with the dialup interface.
To associate a dial rule with a dialup interface:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Create a dialer group and
configure a dial rule.
dialer-group group-number rule
{ protocol-name { deny | permit } |
acl { acl-number | name
acl-name } }
By default, no dialer group exists.
3. Enter dialup interface view.
interface interface-type
interface-number
N/A
4. Associate the dialer group
with the dialup interface.
dialer-group group-number
By default, a dialup interface is not
associated with any dialer group.
A dialup interface can be
associated only with one dialer
group.
Configuring traditional DDR
For traditional DDR, you can configure PAP or CHAP authentication (see "Configuring PPP and MP"). HP
recommends that you configure PAP or CHAP authentication for security purposes.
When you configure PAP or CHAP authentication, follow these guidelines:
• Configure PAP or CHAP authentication on a physical interface if you configure DDR parameters
directly on the physical interface.
• Configure PAP or CHAP authentication on the dialer interface if you configure DDR parameters
through a dialer circular group.