Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

can't get past my Cable modem to DNS servers

Hello all I have googled several items regarding this problem and have tried about all of them to no avail.

Setup-

1 cable modem (lynksys wcg200)No DHCP

1 cisco router 4500

1 linux box

I have the linux box connected to the cable modem with static IP all good here.

I have the cisco router connected to the cable modem throught FastEthernet 0 up up

I can ping from the router to both cable modem and linux box. WOOT!

Can't ping past the cable modem. :(

Current configuration : 1324 bytes

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

no service dhcp

!

hostname BCBehind

!

logging queue-limit 100

enable secret xxx

!

ip subnet-zero

no ip domain-lookup

ip domain-name lookup

ip name-server 24.x.80.36

ip name-server 24.x.176.38

!

partition flash 3 8 4 4

!

!

!

!

interface Ethernet0

ip address 192.168.1.1 255.255.255.0

ip nat inside

media-type 10BaseT

!

interface Ethernet1

ip address 10.0.1.1 255.255.255.252

media-type 10BaseT

!

interface Ethernet2

no ip address

shutdown

media-type 10BaseT

!

interface Ethernet3

no ip address

shutdown

media-type 10BaseT

!

interface Ethernet4

no ip address

shutdown

media-type 10BaseT

!

interface Ethernet5

no ip address

shutdown

media-type 10BaseT

!

interface Serial0

no ip address

shutdown

!

interface Serial1

no ip address

shutdown

!

interface Serial2

no ip address

shutdown

!

interface Serial3

no ip address

shutdown

!

interface FastEthernet0

ip address 192.168.0.2 255.255.255.0

ip nat outside

full-duplex

!

router rip

version 2

network 10.0.0.0

network 192.168.0.0

no auto-summary

!

ip default-gateway 192.168.0.1

ip classless

ip route 192.168.0.0 255.255.255.0 192.168.0.1

no ip http server

!

!

line con 0

line aux 0

line vty 0 4

login

!

end

Any help is greatly appreciated

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Blue

Re: can't get past my Cable modem to DNS servers

Hi Bruce

Could you add a static default route to your router

"ip route 0.0.0.0 0.0.0.0 192.168.0.1"

I don't believe the router will use your ip default-gateway command when in routing mode.

I assume that your cable modem is Natting all outbound traffic to an Internet routable address.

HTH

Jon

2 REPLIES
Hall of Fame Super Blue

Re: can't get past my Cable modem to DNS servers

Hi Bruce

Could you add a static default route to your router

"ip route 0.0.0.0 0.0.0.0 192.168.0.1"

I don't believe the router will use your ip default-gateway command when in routing mode.

I assume that your cable modem is Natting all outbound traffic to an Internet routable address.

HTH

Jon

New Member

Re: can't get past my Cable modem to DNS servers

Thanx mate I am now able to ping outside using IPs now to fix the pesky dns issue

288
Views
0
Helpful
2
Replies