3Com 3C13636 Configuration Manual page 1408

3Com Router 3000 Ethernet Family
Configuration Guide
II. Configuring link layer and network and routing protocols on the interface
Execute the link-protocol command and ip address command in the dial interface
view and perform other configurations in system view.
Table 1-2 Configure link layer and network and routing protocols on the interface
Set a link layer protocol on the dial
interface
Configure an IP address for the dial
interface
Configure RIP
Configure OSPF
Configure BGP
Where, linklayer-protocol-type is interface type dependent. For more information about
how to configure it, refer to the "Link Layer Protocol", "Network Protocol", and "Routing
Protocol" parts of this manual.
Note:
For an ISDN B channel enabled with RS-DCC, its initial encapsulation is PPP. After this
B channel is selected for communication, its encapsulation protocol changes
dynamically to accommodate to the dialer interfaces with different encapsulations. This
allows for great flexibility. After the B channel is released, its link protocol becomes
PPP automatically.
III. Associating a DCC dialer ACL with the interface
A properly configured dialer ACL can filter various packets that traverse the dial
interface. The packets fall into two categories, depending on whether the packets are in
compliance with the "permit" or "deny" statements in the dialer ACL.
The packet complies with the "permit" statements. If the corresponding link has
been set up, DCC will send the packet via this link and clear all the data in the
idle-timeout timer. If not, it will originate a new call.
The packet does not comply with the "permit" statements in the list. If the
corresponding link has been set up, DCC will send the packet via this link without
clearing the idle-timeout timer to zero. If not, it will discard the packet without
originating a call.
Operation
3Com Corporation
1-7
Chapter 1 DCC Configuration
Command
link-protocol linklayer-protocol-type
ip address ipaddress mask
rip
ospf [ process-id ]
bgp as-number