#Configuring RIP routing protocol
router rip
network 200.200.1.0
network 172.200.1.0
On Device B, you can see the OSPF generates the following routes. Please note that the
external route type becomes ―E1‖.
O E1 200.200.1.0/24 [110/85] via 192.168.23.3, 00:00:33, Serial1/0
O IA 192.168.34.0/24 [110/65] via 192.168.23.3, 00:00:33, Serial1/0
O E1 172.200.1.0 [110/85] via 192.168.23.3, 00:00:33, Serial1/0
On Device B, you can see the link status database as shown below. Please note that the tag
of the external link has become ―34‖.
RouterB#show ip ospf 1 database
OSPF Router with ID (1.1.1.1) (Process ID 1)
Router Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Link count
1.1.1.1 1.1.1.1 2 0x80000011 0x6f39 2
3.3.3.3 3.3.3.3 120 0x80000002 0x26ac 1
Network Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum
192.88.88.27 1.1.1.1 120 0x80000001 0x5366
Summary Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Route
10.0.0.0 1.1.1.1 2 0x80000003 0x350d 10.0.0.0/24
100.0.0.0 1.1.1.1 2 0x8000000c 0x1ecb 100.0.0.0/16
Router Link States (Area 0.0.0.1 [NSSA])
Link ID ADV Router Age Seq# CkSum Link count
1.1.1.1 1.1.1.1 2 0x80000001 0x91a2 1
Summary Link States (Area 0.0.0.1 [NSSA])
Link ID ADV Router Age Seq# CkSum Route
100.0.0.0 1.1.1.1 2 0x80000001 0x52a4 100.0.0.0/16
192.88.88.0 1.1.1.1 2 0x80000001 0xbb2d 192.88.88.0/24
NSSA-external Link States (Area 0.0.0.1 [NSSA])
Link ID ADV Router Age Seq# CkSum Route Tag
20.0.0.0 1.1.1.1 1 0x80000001 0x033c E2 20.0.0.0/24 0
100.0.0.0 1.1.1.1 1 0x80000001 0x9469 E2 100.0.0.0/28 0
AS External Link States
Link ID ADV Router Age Seq# CkSum Route Tag
20.0.0.0 1.1.1.1 380 0x8000000a 0x7627 E2 20.0.0.0/24 0
100.0.0.0 1.1.1.1 620 0x8000000a 0x0854 E2 100.0.0.0/28 0
28.4.6 Example of configuring OSPF stub
area
Configuration requirements:
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