Cisco: How Set Time and Date

Here is a quick and simple way to set up time and date for your cisco router.

Check your router clock;

     router#show clock

     *08:20:41.428 ph Thu Oct 30 2014

If this is right then our done, but if not next step

        go to global configuration mode from privileged EXEC mode.

        then execute the following command.

    cisco(config)#clock timezone [word] [timezone]

                   where; [word] is the name of timezone, [timezone] is the hours offset from UTC

    cisco(config)#do write

and your done.

How to Block BitTorrent and other P2P application in Cisco Router

Here is an example on how to block bittorrent and other P2P application using Network-Based Application Recognition (NBAR) in cisco router.

Procedure:

1.  Enable the Cisco Express Forwarding, P2P traffic cannot be blocked when CEF is disabled.

Service-Router#Config t

Service-Router(config)#ip cef

How to Configure DHCP on a Cisco Router

When would you need this: When using the router as a DHCP server to provide IP addresses and related information to DHCP clients.

1.     Define the DHCP address pool,

Router(config)#ip dhcp pool POOLNAME

Router(dhcp-config)#network XXX.XXX.XXX.XXX YYY.YYY.YYY.YYY

How to block P2P and Chat by router

Here are some basic Guides in blocking ports in Cisco Router

Block Gnutella

To block Gnutella, you should close 6346 6347 udp tcp

I assume the network address is 202.0.0.0/28

Installation Guide: Cisco Router - Static Routing

Static routing describes a system that does not implement adaptive routing. In these systems, routes through a data network are described by fixed paths 

(statically). These routes are usually entered into the router by the system administrator. 

Installation Guide: Cisco Router - Frame Relay

In the context of computer networking, frame relay consists of an efficient data transmission technique used to send digital information. It is a message forwarding "relay race" like system in which data packets, called frames, are passed from one or many start-points to one or many destinations via a series of intermediate node points.