Configure the OSPF router ID. SEFOS(config-router)# router-id 10.0.0.1 Configure the desired area associated with the OSPF address range as a stub area. SEFOS(config-router)# area 0.0.0.6 stub SEFOS(config-router)# end Ensure that the stub area is created. SEFOS# show ipv6 ospf area...
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Define a Not-So-Stubby Area In order to make a stub area into an NSSA, issue this command under the OSPF configuration: Router(config)#router ospf 1Router(config-router)#area 1 nssa This command must be configured on every single router in Area 1. After you define Area 1 as an NSSA,...
R4(config-if)#ip ospf cost 10 检查转发度量。它显示,现在到达ASBR R1的开销为11: R4#show ip ospf border-routers OSPF Router with ID (10.4.4.4) (Process ID 1) Base Topology (MTID 0) Internal Router Routing Table Codes: i - Intra-area route, I - Inter-area route i 10.3.3.3 [10] v...
Configure OSPF directly onto all interfaces, including the loopback All interfaces go in area 0, apart from FastEthernet0/1 which goes into area 1 Configure FastEthernet1/0 and the loopback as passive interfaces Make area 1 a stub area ...
OSPF has been configured on all routers in the network. However, rou ter R1 does not receive a default route to router R2 as in tended. Which configuration change would ensure that R1 would receive a default route from R2? () A. Add the area 1 stub command on routers R1. B. Add ...
If you want summarization for OSPF, you will have to configure it yourself. I will show you how to do this for inter-area and external prefixes. Let’s start with an example: Look at the topology above. If we don’t use summarization (which is the default), there will be an LSA fo...
OSPF Process 1 with Router ID 192.168.200.208 Routing Tables Routing for Network Destination Cost Type NextHop AdvRouter Area 2.1.1.0/24 1 Transit 2.1.1.1 192.168.200.208 0.0.0.0 2.2.2.2/32 0 Stub 2.2.2.2 192.168.200.208 ...
Shortest Path First (SPF) Algorithm Explained OSPF Stub area, Totally Stub area, NSSA, and Totally NSSA OSPF Virtual Links Explained OSPF Authentication Password and MD5 Explained OSPF Multi-Area Configuration Explained
Let’s start configuring our simple OSPF topology with a single area 0 in autonomous system (AS) 10 as shown in Figure 1. We will not go into the details of IP address configuration and assume that all IP addresses have been pre-configured on all interfaces including the Loopback interfaces...