slow internet in cisco 3660 router

Unanswered Question
Oct 9th, 2009


internet is very slow in cisco 3600 router.i changed some other higher end ios in my cisco router but the same problem continuing.i have attached my running configs.

I have this problem too.
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Giuseppe Larosa Sat, 10/10/2009 - 02:38

Hello Manivel,

please remove usernames and passwords and change public ip addresses in something else for your safety!

this is a public forum.

I don't see anything wrong in your configuration, what happens without the static nat entries, (if this test can be done)?

do you see errors on "WAN" interface with

sh int eth0/0

Hope to help


refik.becirovic Sun, 10/11/2009 - 14:23

From the output of the sh int e0

there is no congestion on your interface, no drops on ques, meaning wan interface is not overloaded, although there are some errors on output so contact your isp to check the situation.

And it would be helpful to provide a bit more detail regarding your slowness, as somebody mentioned is it delay or upload, download ... be more specific

manivelindian Sun, 10/11/2009 - 20:25

Dear Sir,

whenever im browsing any websites,it is taking take long time to complete and downloading also very slow.

Joseph W. Doherty Sat, 10/10/2009 - 05:22

It appears you may have just published Internet access to your router to the world. Suggest you immediately change your passwords and also consider "hardening" your router (SDM's security review might be a good place to start).

Could you expand what you mean by a "slow" Internet? (NB: I see about 300+ ms latency from my PC to your public IP, where are you located vs. the Internet sites you might be accessing? I.e. could it be just a distance latency issue?)


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