网络工程 - PC 无法 ping 路由器 2 跳（家庭实验室） - 吾爱随笔录

为了给出一些上下文，这是我的设置：

  ----(10.0.0.1 - S0/0/0) R1 (S0/1/0 - 10.0.1.1)----
  |                                                |
  |                                                |
  |                                                |
  (10.0.0.2 - S0/0/0)                              (10.0.1.2 - S0/0/0)
  R3                                               R2
  (172.16.0.1 - FE0/0)                             
  |                                                
  |                                                
  |
  S1
  |
  |
  (172.16.0.2)
  PC1

如果我尝试从 PC1 ping 到 R3，它可以正常 ping 172.16.0.1 和 10.0.0.2；但是如果我尝试从 PC1 ping 10.0.0.1，它不起作用。

这里有一些配置：

R3接口：

interface FastEthernet0/0
 ip address 172.16.0.1 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 ip address 10.0.0.2 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server

R3路线：

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is 10.0.0.1 to network 0.0.0.0

S*    0.0.0.0/0 [1/0] via 10.0.0.1
      10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        10.0.0.0/24 is directly connected, Serial0/0/0
L        10.0.0.2/32 is directly connected, Serial0/0/0
      172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C        172.16.0.0/24 is directly connected, FastEthernet0/0
L        172.16.0.1/32 is directly connected, FastEthernet0/0

R1接口：

interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 ip address 10.0.0.1 255.255.255.0
!
interface Serial0/1/0
 ip address 10.0.1.1 255.255.255.0
!

R1路由：

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is not set

      10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C        10.0.0.0/24 is directly connected, Serial0/0/0
L        10.0.0.1/32 is directly connected, Serial0/0/0
C        10.0.1.0/24 is directly connected, Serial0/1/0
L        10.0.1.1/32 is directly connected, Serial0/1/0