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Router 1841 IOS

Hi,

Would like to know if is there any issue with the ios release ipbase-mz.12.4 1c?

My internet goes down and it comes up only if I restart the router?Should I upgrade the IOS on 1841?If yes which should I gto for.

Reg,

Sushil

6 REPLIES
Hall of Fame Super Gold

Re: Router 1841 IOS

Try 12.4(3j).

Re: Router 1841 IOS

Hi,

I haven't really checked if this IOS release is buggy.

But I would like to know a few things -

1) When you say the internet connectivity goes down, does the router hangs or it keeps on functioning normally.

2) Is the route accessible through console when the internet is down.

If you have configured any static/default route, kindly paste the configuration here.

-> Sushil

New Member

Re: Router 1841 IOS

Hi,

Let me answer your 2nd question first.

Yes,The router is accessible through console.

Once internet goes down router behaves pretty normally.

Yes I am using Static defualt route and routing like

0.0.0.0 0.0.0.0 Fastethernet0/0.

The router has only ip addresses configured on int 0/0 and 0/1.

0/0 connects to isp and 0/1 goes into my ASA.

Do let me know if I have bandwidth of some 2 mbps and my usage goes to 3 mbps or more,does even in that case my internet can go down?

Reg,

Sushil

Hall of Fame Super Gold

Re: Router 1841 IOS

You default static route is wrong.

Put the correct address of the default gateway instead of interface.

Re: Router 1841 IOS

Hi Sushil,

this is what I suspecled. Do what is suggested by Paolo.

Here's the doc for your reference with detailed explaination on what happens when the route is configured in the way you have done and why router stops responding -

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800ef7b2.shtml

Make the changes and hopefully the issue should be resolved.

-> Sushil

Super Bronze

Re: Router 1841 IOS

Try Paolo's second recommendation first (NB: what you're doing is "wrong" in the sense it can overload the router), and if you have maintenance, upgrading the IOS to Paolo's first suggestion is generally a good idea too.

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