Router configuration point to multi-point OSPF settings

Vro subinterface is a technology that divides physical interfaces into multiple logical interfaces. A physical interface can be set with many logical subinterfaces, but each sub-interface is regarded as independent. there are two types of router sub-interface technology: point-to-point interface and multi-point interface. we have established a logical channel. Only two nodes in a logical channel can communicate with each other. How can we achieve mutual communication between the Logical Channel and the logical channel?
At this time, we need to use our routing protocol. you can choose the protocol you want to use. You need to understand that the routing protocol enables nodes in different logical channels to communicate with each other, so that all nodes in the entire frame relay can communicate with each other. in the same way as our VLANs, the routing protocol implements communication between VLANs. we can also understand that our routing protocol implements communication between physical channels and logical channels. as long as you understand the writing principles, we need to practice the syntax more, and your experiment should be fine.
Configure R1> enR1 # conf tR1 (config) # interface loopback 100R1 (config-if) # ip address 10.1.1.1 255.255.255.0R1 (config-if) through the point-to-point interface) # no shut www.2cto.com R1 (config-if) # exitR1 (config) # interface s0R1 (config-if) # encap frame-relay defines the Encapsulation Format R1 (config-if) # no frame-relay inverse-arp disable frame relay reverse arp R1 (config-if) # interface serial 0.2 multipoint sub-interface to enter s0 is defined as the point-to-Multi-Point Mode R1 (config-subif) # ip add 192.168.1.1 255.255.255.0 define ipR1 (config-subi F) # bandwidth 64R1 (config-subif) # frame map ip 192.168.1.2 102 broadcast defines a ing between the frame relay and the ip address. R1 (config-subif) # frame map ip 192.168.1.3 103 broadcastRouter1 (config-subif) # exitR1 (config-if) # exitR1 (config) # configure ospf router R1 (config-router) # net 10.0.0.0 0.0.0.255 area 0R1 (config-router) # net 192.168.1.0 0.0.0.255 area 0R2> enR2 # conf tR2 (config) # interface loopback 100R2 (config-if) # ip address 10.1.2.1 255.255.255.0R2 (config-if) # no shutR2 (config-if) # exitR2 (config) # interface s0R2 (config-if) # Ip address 192.168.1.2 255.255.255.0R2 (config-if) # encap frame-relay defines the Encapsulation Format R2 (config-if) # no frame-relay inverse-arp disables reverse frame relay arpR2 (config-if) # frame map ip 192.168.1.1 201 broadcast defines a ing between a frame relay and an ip address. R2 (config-if) # bandwidth 64R2 (config-if) # frame-relay interface-dlci 201 sets the DLCI value R2 (config-if) # no shutR2 (config-if) # exitR2 (config) # router ospf 101 configure ospf route R2 (config-router) # net 10.1.2.0 0.0.0.255 area 0R2 (config-router) # net 192.168.1.0 0.0.0.255 area 0 R3> enR3 # conf tR3 (config) # interface loopback 100R3 (config-if) # ip address 10.1.3.1 255.255.255.0R3 (config-if) # no shut www.2cto.com R3 (config-if) # exitR3 (Config) # interface s0R3 (config-if) # ip address 192.168.1.3 255.255.255.0R3 (config-if) # encap frame-relay defines the Encapsulation Format R3 (config-if) # no frame-relay inverse-arp disable frame relay reverse arpR3 (config-if) # frame map ip 192.168.1.1 301 broadcast defines a ing between the frame relay and the ip address. R3 (config-if) # bandwidth 64R3 (config-if) # frame-relay interface-dlci 301 set the DLCI value R3 (config-if) # no shutR3 (config-if) # exitR3 (config) # router ospf 101 configure ospf route R3 (config-router) # net 10.1.3.0 0.0.255 area 0R3 (config-router) # net 192.168.1.0 0.0.0.255 area 0 note: the VLSM technology needs to use no auto-summary In r (config-router) # mode When configuring the VPN protocol (disable the automatic route aggregation function of the VPN protocol ). Only in this way can we see the information of the subnets of the Class A and Class B networks. This article is from the fat shark network.