ospf virtual link

How to configure ospf virtual link on cisco

OSPF means open shortest path fast. OSPF all area must be connected with backbone area 0. some scenario not possible to connected with backbone area 0. in this case we need to configure ospf virtual link for connect backbone 0. now we share how to configure ospf virtual link. R1#conf t R1(config)#int e0/1 R1(config-if)#no sh R1(config-if)#ip address 192.168.1.1 255.255.255.0 R1(config-if)#int e0/0 R1(config-if)#ip address 172.16.10.2 255.255.255.252 R1(config-if)#no sh R1(config)#router ospf 1 R1(config-router)#network 192.168.1.0 0.0.0.255 area 0… Read More

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GRE

How to configure GRE tunnel on cisco router

GRE means generic routing encapsulation. GRE is a tunneling technique where we put ‘packets into packets’ over certain networks.GRE protocol initially developed by cisco but later become industry standard. GRE tunnel create a logical interface called tunnel interface. this “tunnel interface” can be created by using normal interface configuration commands. now we share how to configure GRE on Cisco Router. IOU2#conf t IOU2(config-if)#hostname Brance1 Brance1(config)#int e0/0 Brance1(config-if)#no sh Brance1(config-if)#ip address 172.16.10.2 255.255.255.252 Brance1(config)#int e0/1 Brance1(config-if)#no… Read More

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cisco abr asbr

HOW TO ABR AND ASBR CONFIGURATION

 ABR and ASBR Configure on cisco Interface IP Address Configuration      R1   Interface    IP Address  Subnet Mask S0/2/0       1.1.1.1           255.0.0.0 E0             10.1.1.1         255.0.0.0 R2   Interface    IP Address  Subnet Mask S0              1.1.1.2          255.0.0.0 S1              2.2.2.1    … Read More

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inter-vlan cisco

How To Configure Inter-Vlan Routing in Cisco Router

Configure Inter-Vlan Routing in Cisco Router vlan divide broadcast domain. when need one vlan communicate to other vlan that time traffic must be routed between them. this called inter-vlan routing. Step 1 Configure sub interface in Router. IOU1#conf t Enter configuration commands, one per line. End with CNTL/Z. IOU1(config)#int e0/0 IOU1(config-if)#int e0/0.10 IOU1(config-subif)#en IOU1(config-subif)#encapsulation do IOU1(config-subif)#encapsulation dot1Q 10 IOU1(config-subif)#ip add IOU1(config-subif)#ip address 192.168.10.1 255.255.255.0 IOU1(config-subif)#no sh IOU1(config-subif)#int e0/0.20 IOU1(config-subif)#encapsulation dot1Q 20 IOU1(config-subif)#ip address 192.168.20.1 255.255.255.0… Read More

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How To Configure Inter-Vlan Routing in Cisco Router

  Configure Inter-Vlan Routing in Cisco Router vlan divide broadcast domain. when need one vlan communicate to other vlan that time traffic must be routed between them. this called inter-vlan routing. Step 1 Configure sub interface in Router. IOU1#conf t Enter configuration commands, one per line.  End with CNTL/Z. IOU1(config)#int e0/0 IOU1(config-if)#int e0/0.10 IOU1(config-subif)#en IOU1(config-subif)#encapsulation do IOU1(config-subif)#encapsulation dot1Q 10 IOU1(config-subif)#ip add IOU1(config-subif)#ip address 192.168.10.1 255.255.255.0 IOU1(config-subif)#no sh IOU1(config-subif)#int e0/0.20 IOU1(config-subif)#encapsulation dot1Q 20 IOU1(config-subif)#ip address 192.168.20.1… Read More

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