问题描述：
[RT3]display ospf peer
OSPF Process 1 with Router ID 3.3.3.3
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time Interface State
2.2.2.2 192.168.18.2 1 35 Vlan3 Full/BDR
[RT3]
------------------------------
[RT3]display ospf brief
OSPF Process 1 with Router ID 3.3.3.3
OSPF Protocol Information
RouterID: 3.3.3.3 Router Type:
Route Tag: 0
Multi-VPN-Instance is not enabled
Applications Supported: MPLS Traffic-Engineering
ISPF is not enabled
SPF-schedule-interval: 5
LSA generation interval: 5
LSA arrival interval: 1000
Transmit pacing: Interval: 20 Count: 3
Default ASE parameters: Metric: 1 Tag: 1 Type: 2
Route Preference: 10
ASE Route Preference: 150
SPF Computation Count: 5
RFC 1583 Compatible
Graceful restart interval: 120
Area Count: 1 Nssa Area Count: 0
ExChange/Loading Neighbors: 0
Area: 0.0.0.0 (MPLS TE not enabled)
Authtype: None Area flag: Normal
SPF Scheduled Count: 5
ExChange/Loading Neighbors: 0
Interface: 3.3.3.3 (LoopBack0)
Cost: 0 State: Loopback Type: PTP MTU: 1536
Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1
Interface: 192.168.3.1 (Vlan-interface1)
Cost: 1 State: DR Type: Broadcast MTU: 1500
Priority: 1
Designated Router: 192.168.3.1
Backup Designated Router: 0.0.0.0
Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1
Interface: 192.168.18.3 (Vlan-interface3)
Cost: 1 State: DR Type: Broadcast MTU: 1500
Priority: 1
Designated Router: 192.168.18.3
Backup Designated Router: 192.168.18.2
Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1
[RT3]
----------------------------------------------------
[RT3]display ip routing-table
Routing Tables: Public
Destinations : 12 Routes : 12
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/0 Static 60 0 192.168.88.1 GE0/0
2.2.2.2/32 OSPF 10 1 192.168.18.2 Vlan3
3.3.3.3/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.2.0/24 OSPF 10 2 192.168.18.2 Vlan3
192.168.3.0/24 Direct 0 0 192.168.3.1 Vlan1
192.168.3.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.18.0/24 Direct 0 0 192.168.18.3 Vlan3
192.168.18.3/32 Direct 0 0 127.0.0.1 InLoop0
192.168.88.0/24 Direct 0 0 192.168.88.253 GE0/0
192.168.88.253/32 Direct 0 0 127.0.0.1 InLoop0
[RT3]
-----------------------------------------------------------
RT2]display os br
OSPF Process 1 with Router ID 2.2.2.2
OSPF Protocol Information
RouterID: 2.2.2.2 Router Type:
Route Tag: 0
Multi-VPN-Instance is not enabled
Applications Supported: MPLS Traffic-Engineering
ISPF is not enabled
SPF-schedule-interval: 5
LSA generation interval: 5
LSA arrival interval: 1000
Transmit pacing: Interval: 20 Count: 3
Default ASE parameters: Metric: 1 Tag: 1 Type: 2
Route Preference: 10
ASE Route Preference: 150
SPF Computation Count: 5
RFC 1583 Compatible
Graceful restart interval: 120
Area Count: 1 Nssa Area Count: 0
ExChange/Loading Neighbors: 0
Area: 0.0.0.0 (MPLS TE not enabled)
Authtype: None Area flag: Normal
SPF Scheduled Count: 5
ExChange/Loading Neighbors: 0
Interface: 2.2.2.2 (LoopBack0)
Cost: 0 State: Loopback Type: PTP MTU: 1536
Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1
Interface: 192.168.2.1 (Vlan-interface1)
Cost: 1 State: DR Type: Broadcast MTU: 1500
Priority: 1
Designated Router: 192.168.2.1
Backup Designated Router: 0.0.0.0
Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1
Interface: 192.168.18.2 (Vlan-interface3)
Cost: 1 State: BDR Type: Broadcast MTU: 1500
Priority: 1
Designated Router: 192.168.18.3
Backup Designated Router: 192.168.18.2
Timers: Hello 10, Dead 40, Poll 40, Retransmit 5, Transmit Delay 1
[RT2]
[RT2]display ip routing-table
Routing Tables: Public
Destinations : 12 Routes : 12
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/0 Static 60 0 192.168.88.1 GE0/0
2.2.2.2/32 Direct 0 0 127.0.0.1 InLoop0
3.3.3.3/32 OSPF 10 1 192.168.18.3 Vlan3
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.2.0/24 Direct 0 0 192.168.2.1 Vlan1
192.168.2.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.3.0/24 OSPF 10 2 192.168.18.3 Vlan3
192.168.18.0/24 Direct 0 0 192.168.18.2 Vlan3
192.168.18.2/32 Direct 0 0 127.0.0.1 InLoop0
192.168.88.0/24 Direct 0 0 192.168.88.252 GE0/0
192.168.88.252/32 Direct 0 0 127.0.0.1 InLoop0
[RT2]
-------------------------------------------
[RT2]display ospf peer
OSPF Process 1 with Router ID 2.2.2.2
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time Interface State
3.3.3.3 192.168.18.3 1 39 Vlan3 Full/DR
[RT2]
组网及组网描述：
从PC-4可以ping 通与 访问 192.168.3.20 共享。 但 从PC-5就不能 ping通 192.168.2.20.不能访问共享。都没有设置防火墙。 可以ping通 192.168.2.1 与 192.168.18.2。贴了配置如上。请教大神指点。谢谢。
- 2023-10-10提问
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没有开防火墙。电脑、路由器均没开。。谢谢 回复。
telnet一下相应端口通吗
确实 是防火墙问题。只 查看了win自带的。后面还有其他 的软件防火墙导致。谢谢。