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jhicks4
Asked: 2012-02-07 19:12:48 +0800 CST

Cannot ping outside Fa4 on cisco 871w Router

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After starting fresh after a write erase and a reload on a cisco 871w. I cannot ping outside of the wan (fa4).

I gave vlan1 (default) an ip because apparently the built in "4 port switch" is a layer 2 device so you cannot directly add IPs to the ports like on the 2800 series.

Fa4 (wan port) is actually a layer3 port so I add the settings(ip, mask, speed, duplex) to fa4.

there are no ACLs set up.

I can ping another device connected to one of the ports and also the vlan from a connected computer. I can ping anything from inside the router other than the vlan. I cannot ping fa4 from a connected computer nor can I ping anything outside the fa4.

I would prefer to console in and use the command line interface if possible but i can also use the http interface.

   ip source-route
!
!
!
!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
bridge irb
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
 ip address 65.191.147.200 255.255.254.0
 ip nat outside
 ip virtual-reassembly
 no ip route-cache cef
 duplex auto
 speed auto
 no cdp enable
!
interface Dot11Radio0
 no ip address
 shutdown
 speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
 station-role root
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
 bridge-group 1
!
interface BVI1
 ip address 192.168.1.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly
!
ip forward-protocol nd
ip http server
no ip http secure-server
router cisco ios

2 Answers

  1. In short: 

    no ip route 192.168.1.0 255.255.255.0 61.190.146.1
no ip route 192.168.1.0 255.255.255.0 61.190.147.0

interface vlan 1 
  no ip address 192.168.1.1 255.255.255.0
  bridge-group 1

interface bvi1
  ip address 192.168.1.1 255.255.255.0
  ip nat inside 
  exit 

bridge 1 route ip
ip route 0.0.0.0 0.0.0.0 <your default gateway> 
! (if you don't get a default route via RIP) 
ip nat inside source list 1 interface FastEthernet4 overload
ip access-list 1 permit 192.168.1.0 0.0.0.255

    Are you sure that you want to enable RIP and NAT?

    • 2

  2. Did you try adding the ip routing command in configuration mode? Also do you have a default route?

    • 0