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Thanks dude. &nbsp;That worked like a charm.
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Thanks dude.  That worked like a charm.

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I'm sure this is an easy one for router jocks, but I'm the new owner of a Cisco 804, and the port test at grc.com keeps telling me that my telnet (23) port is open. &nbsp;Have tried numerous fixes from the manual and off the web to no avail. &nbsp;I'm accessing the router through the serial monitor. &nbsp;Router password has been changed and &quot;supersecreted&quot;. &nbsp;Should I worry? &nbsp;If so, any tips for how to close the damn thing? <br />
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One would think they could find such info in the docs/on Cisco website, but no joy.<br />
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Thanks a bunch.
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I'm sure this is an easy one for router jocks, but I'm the new owner of a Cisco 804, and the port test at grc.com keeps telling me that my telnet (23) port is open.  Have tried numerous fixes from the manual and off the web to no avail.  I'm accessing the router through the serial monitor.  Router password has been changed and "supersecreted".  Should I worry?  If so, any tips for how to close the damn thing? 

One would think they could find such info in the docs/on Cisco website, but no joy.

Thanks a bunch.

How to close port 23 (telnet) on Cisco 800 router

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.