!
hostname R1
!
no ip domain lookup
!
interface Loopback0
?ip address 1.1.1.1 255.255.255.255 router ospf 1
?network 0.0.0.0 255.255.255.255 area 0 在這里可以看到，在R1上可以動態獲得到達R1，R2的DLCI號，因為在幀中繼交換機上配置了PVC：
R1#show frame-relay map
Serial1/0 (up): ip 192.168.1.2 dlci 100(0x64,0x1840), static,
????????????? broadcast,
????????????? CISCO, status defined, active
Serial1/0 (up): ip 192.168.1.3 dlci 200(0xC8,0x3080), dynamic,
????????????? broadcast,, status defined, active R1#show ip route Gateway of last resort is not set 1.0.0.0/32 is subnetted, 1 subnets
C?????? 1.1.1.1 is directly connected, Loopback0
???? 2.0.0.0/32 is subnetted, 1 subnets
O?????? 2.2.2.2 [110/65] via 192.168.1.2, 00:02:19, Serial1/0
???? 3.0.0.0/32 is subnetted, 1 subnets
O?????? 3.3.3.3 [110/65] via 192.168.1.3, 00:02:19, Serial1/0
C??? 192.168.1.0/24 is directly connected, Serial1/0 R1#show ip ospf neig Neighbor ID???? Pri?? State?????????? Dead Time?? Address???????? Interface
2.2.2.2?????????? 0?? FULL/DROTHER??? 00:00:37??? 192.168.1.2???? Serial1/0
3.3.3.3?????????? 0?? FULL/DROTHER??? 00:00:32??? 192.168.1.3???? Serial1/0
R1#ping 192.168.1.2 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 168/262/472 ms R1#ping 192.168.1.3 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:
!!!!!
!
hostname R2
!
interface Loopback0
?ip address 2.2.2.2 255.255.255.255
!
interface Serial1/0
?ip address 192.168.1.2 255.255.255.0
?encapsulation frame-relay
//將NBMA設置成廣播類型的網絡
?ip ospf network broadcast
?ip ospf priority 0
!
router ospf 1
?log-adjacency-changes
?network 0.0.0.0 255.255.255.255 area 0
R2#ping 192.168.1.1 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!! Serial1/0 (up): ip 0.0.0.0 dlci 100(0x64,0x1840)
????????????? broadcast,
????????????? CISCO, status defined, active
Serial1/0 (up): ip 192.168.1.1 dlci 100(0x64,0x1840), dynamic,
????????????? broadcast,, status defined, active R2#show ip route
Gateway of last resort is not set 1.0.0.0/32 is subnetted, 1 subnets
O?????? 1.1.1.1 [110/65] via 192.168.1.1, 00:10:54, Serial1/0
???? 2.0.0.0/32 is subnetted, 1 subnets
C?????? 2.2.2.2 is directly connected, Loopback0
???? 3.0.0.0/32 is subnetted, 1 subnets
O?????? 3.3.3.3 [110/65] via 192.168.1.3, 00:10:54, Serial1/0
C??? 192.168.1.0/24 is directly connected, Serial1/0 R2#show ip ospf neig Neighbor ID???? Pri?? State?????????? Dead Time?? Address???????? Interface
1.1.1.1?????????? 1?? FULL/DR???????? 00:00:33??? 192.168.1.1???? Serial1/0 //可以在路由表中看到R3的RID號，但是，在R2上卻PING不通R2的接口IP
//這是因為在R2中沒有到達R3接口DLCI號，沒有辦法封裝 R2#ping 192.168.1.3 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5) 但是在R2的接口inter s 1/0配置了Frame-relay map ip 后：
R2(config)#inte s 1/0 R2(config-if)#frame-relay map ip 192.168.1.3 100 broadcast //這個 broadcast 必須指定，因為該網絡為NBMA廣播 //可以從下面看到已經PING得通了
R2#ping 192.168.1.3 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:
!!!!! !
hostname R3
!
interface Loopback0
?ip address 3.3.3.3 255.255.255.255
interface Serial1/0
?ip address 192.168.1.3 255.255.255.0
?encapsulation frame-relay
?ip ospf network broadcast
?ip ospf priority 0
?serial restart-delay 0
?frame-relay map ip 192.168.1.1 200 broadcast
?frame-relay map ip 192.168.1.2 200 broadcast?? //必須指定
!
router ospf 1
?network 0.0.0.0 255.255.255.255 area 0 R3#show ip ospf neig Neighbor ID???? Pri?? State?????????? Dead Time?? Address???????? Interface
1.1.1.1?????????? 1?? FULL/DR???????? 00:00:37??? 192.168.1.1???? Serial1/0
R3#show ip route Gateway of last resort is not set 1.0.0.0/32 is subnetted, 1 subnets
O?????? 1.1.1.1 [110/65] via 192.168.1.1, 00:04:36, Serial1/0
???? 2.0.0.0/32 is subnetted, 1 subnets
O?????? 2.2.2.2 [110/65] via 192.168.1.2, 00:04:36, Serial1/0
???? 3.0.0.0/32 is subnetted, 1 subnets
C?????? 3.3.3.3 is directly connected, Loopback0
C??? 192.168.1.0/24 is directly connected, Serial1/0 R3#show frame-relay map
Serial1/0 (up): ip 192.168.1.1 dlci 200(0xC8,0x3080), static,
????????????? broadcast,
????????????? CISCO, status defined, active
Serial1/0 (up): ip 192.168.1.2 dlci 200(0xC8,0x3080), static,
????????????? broadcast,
????????????? CISCO, status defined, active
R3#ping 192.168.1.2 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!

轉載于:https://blog.51cto.com/xiaomu205/150889

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