Fwd: 871 router NAT troubleshooting

From: Sam Wadhwa <mladka7_at_gmail.com>
Date: Tue, 19 Feb 2013 22:06:51 -0500

Hey guys - can someone help with this? It's a L3 problem and really suspect
NAT not working here

I've been struggling with some configs on this router I'm setting up for a
friend and just can't get Internet to work

- Wifi association works fine
- The router can ping the internet fine and tried with 4.2.2.2
- Client is getting IP address and gateway info fine
- Client can ping default gw but not an internet address like 4.2.2.2
- This router's gateway is 10.5.5.168 and that part of the network is fine
and tested out

jaybuddy#wr t
Building configuration...

Current configuration : 3157 bytes
!
! Last configuration change at 04:22:07 UTC Fri Mar 1 2002
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname jaybuddy
!
boot-start-marker
boot-end-marker
!
!
enable secret 4 U3m4oAxPL6U2QZg5dXhsBS7y6IpWl4NjAhg1.bHP0Vo
!
aaa new-model
!
!
!
!
!
!
!
aaa session-id common
!
crypto pki token default removal timeout 0
!
!
dot11 syslog
!
dot11 ssid GUESTRITS
 vlan 2
 authentication open
 authentication key-management wpa
 guest-mode
 wpa-psk ascii 0 test2231
!
dot11 ssid jaybuddy
 vlan 1
 authentication open
 authentication key-management wpa
 wpa-psk ascii 0 test2231
!
ip source-route
!
!
ip dhcp excluded-address 192.168.1.1
ip dhcp excluded-address 192.168.1.254
!
ip dhcp pool GUESTRITS
 network 192.168.1.0 255.255.255.0
 default-router 192.168.1.1
!
!
!
ip cef
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
bridge irb
!
!
!
interface FastEthernet0
 switchport trunk allowed vlan 1,2,1002-1005
 switchport mode trunk
 no ip address
!
interface FastEthernet1
 no ip address
!
interface FastEthernet2
 no ip address
!
interface FastEthernet3
 no ip address
!
interface FastEthernet4
 ip address dhcp
 ip nat outside
 ip virtual-reassembly in
 duplex auto
 speed auto
!
interface Dot11Radio0
 no ip address
 !
 encryption vlan 1 mode ciphers tkip
 !
 encryption vlan 2 mode ciphers tkip
 !
 ssid GUESTRITS
 !
 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 Dot11Radio0.1
 encapsulation dot1Q 1 native
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 spanning-disabled
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
!
interface Dot11Radio0.2
 encapsulation dot1Q 2
 bridge-group 2
 bridge-group 2 subscriber-loop-control
 bridge-group 2 spanning-disabled
 bridge-group 2 block-unknown-source
 no bridge-group 2 source-learning
 no bridge-group 2 unicast-flooding
!
interface Vlan1
 no ip address
 bridge-group 1
!
interface Vlan2
 no ip address
 bridge-group 2
!
interface BVI1
 ip address 10.0.0.2 255.255.255.0
!
interface BVI2
 ip address 192.168.1.1 255.255.255.0
 ip nat inside
 ip nat enable
 ip virtual-reassembly in
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat source list 100 interface FastEthernet4 overload
!
access-list 100 permit ip 192.168.1.0 0.0.0.255 any
!
!
!
!
!
!
!
control-plane
!
bridge 1 protocol ieee
bridge 1 route ip
bridge 2 protocol ieee
bridge 2 route ip
alias exec si show ip int brief
alias exec sir show ip route
alias exec fi show running-config | include
alias exec fb show running-config | begin
alias exec sri show run interface
alias exec sal show access-list
alias exec sib show ip bgp
alias exec sio show ip ospf
alias exec sie show ip eigrp top
alias exec srm show route-map
privilege exec all level 5 configure
privilege exec level 5 reload
!
line con 0
 no modem enable
line aux 0
line vty 0 4
 transport input all
!
scheduler max-task-time 5000
end

jaybuddy#show ip interface brief
Interface IP-Address OK? Method Status
 Protocol
BVI1 10.0.0.2 YES manual up
 up
BVI2 192.168.1.1 YES manual up
 up
Dot11Radio0 unassigned YES unset up
 up
Dot11Radio0.1 unassigned YES unset up
 up
Dot11Radio0.2 unassigned YES unset up
 up
FastEthernet0 unassigned YES unset up
 down
FastEthernet1 unassigned YES unset up
 down
FastEthernet2 unassigned YES unset up
 down
FastEthernet3 unassigned YES unset up
 up
FastEthernet4 10.5.5.106 YES DHCP up
 up
NVI0 192.168.1.1 YES unset up
 up
Vlan1 unassigned YES unset up
 up
Vlan2 unassigned YES unset up
 down

jaybuddy# show ip route
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 10.5.5.168 to network 0.0.0.0

S* 0.0.0.0/0 [254/0] via 10.5.5.168
      10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.0.0.0/24 is directly connected, BVI1
L 10.0.0.2/32 is directly connected, BVI1
C 10.5.5.0/24 is directly connected, FastEthernet4
L 10.5.5.106/32 is directly connected, FastEthernet4
      192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, BVI2
L 192.168.1.1/32 is directly connected, BVI2

If anybody can help out, I'll appreciate it

Thanks!

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Received on Tue Feb 19 2013 - 22:06:51 ART

This archive was generated by hypermail 2.2.0 : Fri Mar 01 2013 - 07:57:58 ART