OSPF hello-interval & DR선출,비선출 구분하여 전체통신가능하게 만들기

R1 ena  conf t no ip do loo line cons 0 exec-t 0 logg syn exit int s 1/0 encap fr no fr inverse-arp no shut exit int s 1/0.123 po ip add 11.11.123.1 255.255.255.0 frame-relay interface-dlci 102 exit int loo 0 ip add 1.1.1.1 255.255.255.0 exit router ospf 1 network 11.11.123.1 0.0.0.0 area 0 network 1.1.1.1 0.0.0.0 area 0 exit ==================================================== R2 ena  conf t no ip do loo line cons 0 exec-t 0 logg syn exit int s 1/0 encap fr no fr inverse-arp no shut exit int s 1/0.123 mul ip add 11.11.123.2 255.255.255.0 frame-relay map ip 11.11.123.1 201 broadcast frame-relay map ip 11.11.123.3 203 broadcast exit int loo 0 ip add 2.2.2.2 255.255.255.0 exit router ospf 1 network 11.11.123.2 0.0.0.0 area 0 network 2.2.2.2 0.0.0.0 area 0 exit int s 1/0.123 ip ospf network point-to-multipoint      ===> DR/BDR 비선출 모드로 바꿔준다. exit int s 1/0.123 ip ospf hello-interval 10                    ===> hello interval 조정해서 통신가능하게 만들기. exit ==================================================== R3 ena  conf t no ip do loo line cons 0 exec-t 0 logg syn exit int s 1/0 encap fr no fr inverse-arp no shut exit int s 1/0.123 po ip add 11.11.123.3 255.255.255.0 frame-relay interface-dlci 302 exit int s 1/0.34 mul ip add 11.11.34.3 255.255.255.0 frame-relay map ip 11.11.34.4 304 broadcast exit int s 1/0.43 po ip add 11.11.43.3 255.255.255.0 frame-relay interface-dlci 314 exit exit int loo 0 ip add 3.3.3.3 255.255.255.0 exit router ospf 1 network 11.11.123.3 0.0.0.0 area 0 network 11.11.34.3 0.0.0.0 area 0 network 3.3.3.3 0.0.0.0 area 0 exit ==================================================== R4 ena  conf t no ip do loo line cons 0 exec-t 0 logg syn exit int s 1/0 encap fr no fr inverse-arp no shut exit int s 1/0.34 mul ip add 11.11.34.4 255.255.255.0 frame-relay map ip 11.11.34.3 403 broadcast exit int s 1/0.43 po ip add 11.11.43.4 255.255.255.0 frame-relay interface-dlci 413 exit exit int loo 0 ip add 4.4.4.4 255.255.255.0 exit router ospf 1 network 11.11.34.4 0.0.0.0 area 0 network 11.11.43.4 0.0.0.0 area 0 network 4.4.4.4 0.0.0.0 area 0 exit router ospf 1 neighbor 11.11.34.3                             ====> NBMA이므로 neighbor 수동 설정 exit