Solved

Cisco 881G LAN cannot see WAN

Posted on 2010-09-15
2
558 Views
Last Modified: 2012-05-10
I have a newly configured 881G router with a 3G interface (Verizon). I can ping both LAN connections and WAN sites from "inside" the router but pinging any WAN site from the LAN side of the router fails. I am sure it is a configuration issue but don't know what. Can anyone help?
0
Comment
Question by:ChuckAzep
2 Comments
 
LVL 2

Expert Comment

by:joseleonardo
Comment Utility
can you put a diagram for your scenario, and the show run, in order to check for errors?
0
 
LVL 5

Accepted Solution

by:
StefanKamp earned 125 total points
Comment Utility
You should post your running config in order to be able to troubleshoot your issues, however:

If I understand correctly your able to ping outside when your logged on to the router itself, you are not able to ping from any client behind the router to the WAN. I assume that the client are even not able to get a single packet outside the WAN interface, you are probably unable to browse the internet?

If so; probably an access-list issue or something else easily to be solved, check wheter the following commands are applied (i only write down what at least has to be configured, don't remove any other existing commands)

!
interface WAN1 (not sure which WAN interface is used on your router)
 ip nat outside
!
interface VLAN1
 ip nat inside
!
ip nat inside source route-map ANYNAMEMAP interface WAN1 overload
!
access-list 100 permit ip ''your-subnet" 0.0.0.255 any
!
route-map ANYNAMEMAP permit 1
 match ip address 100
!
0

Featured Post

Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
VPN Connection Failure 22 92
Wireless WAP School 4 54
OSPF Routing Problems 9 64
PORT NUMBER FOR FIOS ROUTER 5 37
There are two basic ways to configure a static route for Cisco IOS devices. I've written this article to highlight a case study comparing the configuration of a static route using the next-hop IP and the configuration of a static route using an outg…
Getting hacked is no longer a matter or "if you get hacked" — the 2016 cyber threat landscape is now titled "when you get hacked." When it happens — will you be proactive, or reactive?
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now