Di Posting Oleh : Simple Learning
Kategori : HCv1.0 Intermediate OSPF
Pic. 1 - Topology Diagram.
Task 1
On R1 create loopback 1 interface with the address 1.1.1.1/24. Advertise this subnet into OSPF area 13 and ensure other OSPF routers receive it with the network mask configured on R1 (/24).
Questions
Questions
- What is the default network mask of loopback network when advertised into OSPF?
- How can you advertise loopback network with its actual network mask?
Lab Solution
Solution configuration below:
https://docs.google.com/file/d/0BwE5C95tpjZOWEFGdmtGYWhZbmc/edit?usp=sharing
Task 1
On R1 create loopback 1 interface with the address 1.1.1.1/24. Advertise this subnet into OSPF area 13 and ensure other OSPF routers receive it with the network mask configured on R1 (/24).
R1 Config:
!
interface Loopback1
ip address 1.1.1.1 255.255.255.0
ip ospf network point-to-point
ip ospf 1 area 13
!
Notice!
The statement 'ip ospf network point-to-point' allows OSPF to advertise loopback network with the actual (configured) network mask
Study Drill
Check ip ospf database to see what the loopback interfaces (e.g. 10.0.1.1). Compare this output with the 1.1.1.0/24 loopback network you have configured in the lab solution. Use 'show ip ospf database router' on R1
� Jarek Rek 2013
0 Response to "OSPF Network Loopback"
Post a Comment