Ospf

ping OSPF 多播地址不工作時怎麼辦?

  • September 29, 2010

我正在向 OSPF 設置添加一個新路由器。配置似乎一切正常,但狀態仍為 INIT/DROTHER。當我從新路由器對 224.0.0.5 執行 ping 操作時,我得到的是:

CB# ping 224.0.0.5

鍵入轉義序列以中止。向 224.0.0.5 發送 1 個 100 字節的 ICMP Echo,超時為 2 秒:. CB#

在另一台路由器上使用 ping 到同一地址工作正常。

請指教。

路由器 CB - 3825 高級安全 12.4(7c)

ROUTER IG - 相同的路由器/IOS

ROUTER CB

version 12.4
!
hostname CB
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
ip cef
!
no ip dhcp use vrf connected
!
ip multicast-routing
!
interface Loopback1
ip address 10.200.204.1 255.255.255.224
!
interface GigabitEthernet0/0
description LAN Interface
ip address 192.168.1.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip virtual-reassembly
duplex auto
speed auto
media-type rj45
negotiation auto
no mop enabled
!
interface GigabitEthernet0/0/0
ip address 10.10.1.2 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
ip virtual-reassembly
negotiation auto
!
router ospf 1
log-adjacency-changes
network 10.10.1.0 0.0.0.3 area 0
network 192.168.1.0 0.0.0.255 area 0
!
ip route 0.0.0.0 0.0.0.0 10.10.1.1 permanent

ROUTER IG

version 12.4
!
service nagle
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
!
hostname IG
!
no aaa new-model
!
resource policy
!
no ip source-route
ip cef
ip tcp synwait-time 10
!
interface Loopback1
ip address 10.200.200.1 255.255.255.0
!
interface GigabitEthernet0/0
description LAN Interface
bandwidth 1048576
ip address 192.168.10.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip virtual-reassembly
ip route-cache flow
duplex auto
speed auto
media-type rj45
negotiation auto
no mop enabled
!
interface GigabitEthernet0/1
description to CCTV1
ip address 172.10.1.1 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip pim dense-mode
ip virtual-reassembly
ip route-cache flow
ip ospf cost 10
ip ospf hello-interval 1
ip ospf dead-interval 2
ip ospf retransmit-interval 3
ip ospf transmit-delay 3
duplex auto
speed auto
media-type rj45
negotiation auto
no mop enabled
!
interface GigabitEthernet0/1/0
description Service Provider Fiber Link
no ip address
negotiation auto
!
interface GigabitEthernet0/1/0.10
description to CCTV2
encapsulation dot1Q 10
ip address 172.10.2.1 255.255.255.252
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip ospf hello-interval 1
ip ospf dead-interval 2
ip ospf retransmit-interval 3
ip ospf transmit-delay 3
no snmp trap link-status
no cdp enable
!
interface GigabitEthernet0/1/0.32
description to CB
encapsulation dot1Q 32
ip address 10.10.1.1 255.255.255.252
no snmp trap link-status
no cdp enable
!
router ospf 1
log-adjacency-changes
network 10.10.1.0 0.0.0.3 area 0
network 172.10.1.0 0.0.0.3 area 0
network 172.10.2.0 0.0.0.3 area 0
network 192.168.10.0 0.0.0.255 area 0
! 
ip route 0.0.0.0 0.0.0.0 XXX.XXX.XXX.XXX

路由器啟動後需要重新啟動,一切都開始正常工作。

首先,我會 ping 同一個網路塊上的其他設備(在本例中為 10.10.1.1 和 10.10.1.2),看看是否有任何響應。如果您有基本的 L3 連接,我會開始查看 OSPF 事件調試或 OSPF 數據包調試。

不過,我不會依賴來自 OSPF 多播 IP 的任何 ping 響應。

編輯:啊,您已經在其中一台路由器上明確配置了各種 OSPF 間隔。這些在形成鄰接關係的所有路由器上都非常匹配,因此當發送 Hello 數據包時,它們會立即被丟棄為無效。

引用自:https://serverfault.com/questions/183604