Configuring Ipoa - HPE FlexNetwork MSR series Configuration Manual

Configuring IPoA

To enable the upper-layer protocols to find a remote device by its IP address, map the IP address of
the remote device to the local PVC or PVC group.
To configure an IP mapping, use one of the following methods:
•
Static IP address mapping—Maps the IP address of the remote interface to the PVC or PVC
group.
•
Default mapping—If a packet cannot find the mapping for the next hop address, the packet is
transmitted through the PVC or PVC group configured with the default mapping.
•
InARP mapping—Uses Inverse Address Resolution Protocol (InARP) to resolve the IP
address of the remote interface that is connected to the local PVC or PVC group. You do not
need to configure a static IP address for the PVC or PVC group.
working process. The IP addresses are the IP addresses of the ATM interfaces to which the
PVC or PVC group belongs.
Figure 43 InARP working process
Host A
IP address = 10.20.30.1
Follow these guidelines when you configure IPoA:
•
All encapsulation types support IPoA mapping, but only aal5snap supports InARP mapping.
You cannot configure InARP mapping when aal5mux or aal5nlpid is used.
•
Multiple IP addresses can be mapped to the same PVC or PVC group. You can configure static
IP mapping, default mapping, and InARP mapping at the same time. Different PVCs or PVC
groups on the same interface cannot be mapped to the same IP address. The PVCs or PVC
groups on the same interface can be configured with only one default mapping.
•
If the interfaces of two routers are connected back-to-back, the local PVC mapped to the
remote IP address must have the same VPI/VCI value as the remote PVC mapped to the local
IP address.
To configure IPoA:
Step
1. Enter system view.
2. Enter ATM interface
view
subinterface view.
Host B
IP address = 10.20.30.2
InARP_Request
Source IP address = 10.20.30.1
Destination IP address = 0.0.0.0
InARP_Reply
Source IP address = 10.20.30.2
Destination IP address = 10.20.30.1
Command
system-view
interface atm { interface-number
or ATM
| interface-number.subnumber }
Remarks
N/A
N/A
132
Figure 43 shows the InARP