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it does and thanks alot. great explaination!
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it does and thanks alot. great explaination!

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Great, glad to hear it! Don't forget to accept the answer if you're happy with the outcome! :) 
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Great, glad to hear it! Don't forget to accept the answer if you're happy with the outcome! :)

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The aux port is also used if you want to reverse telnet or ssh into another device. You would connect a rollover cable from the router's aux port to another router or switches console port. After configuring the aux port you could then telnet or ssh into the router and then console into the second router or swith. This is useful during changes where you want to have console access to devices that needs rebooting or may have possible network disconnects.
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The aux port is also used if you want to reverse telnet or ssh into another device. You would connect a rollover cable from the router's aux port to another router or switches console port. After configuring the aux port you could then telnet or ssh into the router and then console into the second router or swith. This is useful during changes where you want to have console access to devices that needs rebooting or may have possible network disconnects.

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What is the purpose of the auxillary port on the back of a cisco router 1841 and how do you access it or use it. it doesn't seem to show in the show intefaces or show ip int brief.
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What is the purpose of the auxillary port on the back of a cisco router 1841 and how do you access it or use it. it doesn't seem to show in the show intefaces or show ip int brief.

cisco 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.

Routers

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.