环回口的用法

Hanson1990814

哪位大神可以告诉我，pc怎样才能够ping通R1上的环回口。r3上面用了NAT，现在pc能够ping通R1上面的
f0/0口。谢谢

motive6

木有设备配置，怎么知道你问题出在哪儿呢，谁知道你配的对不对啊
你可以把相关设备的cfg文件导出来贴在附件里，要不无法帮你

Hanson1990814

motive6 发表于 2015-11-13 15:04
木有设备配置，怎么知道你问题出在哪儿呢，谁知道你配的对不对啊
你可以把相关设备的cfg文件导出来贴在附 ...

R3#end
Translating "end"

Translating "end"

% Unknown command or computer name, or unable to find computer address
R3#show run
Building configuration...

Current configuration : 1444 bytes
!
upgrade fpd auto
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
ip source-route
no ip icmp rate-limit unreachable
ip cef
!
!
ip dhcp excluded-address 192.168.3.3
!
ip dhcp pool net30
   network 192.168.3.0 255.255.255.0
   default-router 192.168.3.3
   dns-server 202.96.209.133
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
archive
log config
  hidekeys
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
interface FastEthernet0/0
ip address 192.168.23.3 255.255.255.0
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
ip address 192.168.3.3 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex half
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.23.2
no ip http server
no ip http secure-server
!
!
ip nat inside source list 3 interface FastEthernet0/0 overload
!
logging alarm informational
access-list 3 permit any
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
gatekeeper
shutdown
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
!
end

Hanson1990814

R1上面就一条默认路由指向internet，internet路由器上面就配置了接口，

星辰angel

在Internet上可能少一条去往R3 loopback口的路由，你在Internet路由器加上一条静态指向loopbavk口试试

motive6

internet上有R1和R3上面所有地址的路由吗

mychong888

你得从R1环回口方向和internet路由器上做静态路由，这样就可以通了！
想想吧，R3做了NAT，但R1和internet自身不能通，所以……

问舟

少路由了

dadasq

在这个环境下：
IP是逐条转发的，所以呢，每一跳都要查路由表，每个设备上都要有数据报文的源IP和目的IP，按照这个思路去查看你的设备路由表，找出问题所在，祝楼主早日成为大神