Saving Cisco Router Configuration

A team operating system sent an email today morning asked, is there a way to save configs to all devices on the network as a step in the safety net to lose if this configuration is registered, or if the power goes in one place. I took a look at NetMRI, an analysis of the problem was specific to this case. He began the timestamp for the moment that SNMP configuration has been changed and the time that the configuration was last saved. It creates a problem when a device to save the configuration timestamp later than the timestamp of the last.

Indeed, there were five units with configurations that have not been saved, so it was easy to take care of the problem without resorting to a network device with a ‘write mem “command. NetMRI is an even easier way Ordering the set of devices to run in the exhibition. All it took was based on all the devices of the question, please click on the button to execute a command on it and give you, “write mem “the command to execute. I do not start with “copy”, because it is a confirmation of the transfer request, a control input line required to run completely different. Executing the set of five devices only lasted a few minutes to install and run.

During the execution of storing five devices do not last very long is a manual process, it would not be much more significant savings of time before the instruments, in particular how to monitor this system and what have you done to . For more complex sets of commands, variables needed to be used in the commands to execute. My point is that the simple approach command execution does not always work. Sometimes you need a scripting language you determine the value of variables, such as an interface or an IP address can. A script may be necessary to collect and process data from the current configuration of the new set of commands to create the run on the device. That is one of NetMRI I have not seen in many other configuration items are made.

Cisco-Linksys WRT160NL Wireless-N Broadband Router with Storage Link


Internet-sharing Router and 4-port Switch, with a built in speed and range enhanced Wireless Access Point

Great for media-intensive applications like streaming video or music, and gaming
MIMO technology uses multiple radios to create a robust signal that travels farther and helps reduce dead spots

Storage Link lets you connect a hard drive or flash-based USB storage device to allow access to your music, video, or data files from anywhere within your network
Product Description

The Wireless-N Broadband Router with Storage Link is really four devices in one box. First, there’s the Wireless Access Point, which lets you connect to the network without wires. There’s also a built-in 4-port full-duplex 10/100 Switch to connect your wired-Ethernet devices together. The Storage Link feature lets you connect a hard drive or flash-based USB storage device directly to your network to easily add gigabytes of storage. Access your music, video.

Cisco Router Will Play Flip Videos on Your TVPosted

All those people running around taking videos with their Flip video cameras can now see their handiwork appear on the big screen. Well, a bigger screen.

Cisco Systems, which acquired the Flip products in March, has come out with the FlipShare TV –- a set of products that helps people transfer their videos from a Flip camera to a PC and then to a television.

The FlipShare TV has three parts. First, there’s basically a small router that connects to a TV via composite cables (the red, white and yellow ones) or an HDMI cable for better quality. Then, there’s a USB stick that plugs into a home computer. Finally, there’s a remote control.

GRE Tunnels on a Cisco Router

One of my projects involved the configuration of GRE (Generic Routing Encapsulation) tunnels, encrypted by IPSec, between two locations. I was having some problems getting the tunnels to work properly, but now I’ve managed to resolve that problem, and the configuration is working well. Here’s some additional information on the problem and how it was finally corrected.

This was my first project using GRE tunnels. I’d used IPSec tunnels many times, and on many different platforms, but this time around we needed an interface that could be tracked for HSRP (Hot Standby Router Protocol) purposes, and until recently Cisco didn’t offer IPSec tunnel interfaces. (I just came across some documentation last night that indicated very recent releases of IOS offer this functionality.) So, the idea was to use GRE tunnels, track the GRE tunnels using HSRP for failover with another router, and encrypt the traffic using IPSec in transport mode.

The GRE tunnel configuration (scrubbed for sensitive data) looked something like this originally:

interface Tunnel0

description GRE tunnel to other location
ip address 192.168.254.1 255.255.255.252
tunnel source FastEthernet0/0
tunnel destination 172.31.254.1
crypto map tunnel-ipsec-map

Of course, there was an appropriately configured interface at the other end of the tunnel as well. The tunnels came up, and appeared to work just fine, until we added the keepalive statement. (The keepalive statement is required for the tunnel to report an actual up/down status, necessary for HSRP interface tracking.) Then they went down and stayed down.

A “debug tunnel” statement showed that the keepalives were being sent, but none were being received. Thinking perhaps the IPSec configuration was incorrect, I removed the “crypto map” statement from the tunnel interface. It still didn’t work.

After reviewing the configuration again, I began to suspect an MTU issue—the “show int tun0″ output listed an MTU of 1514. I consulted with a Cisco expert (recently obtained his CCIE), and he confirmed that it was most likely an MTU issue. So I modified the configuration to look like this:

New Cisco router | Cisco 877 Integrated Services Router

Today I put in production on my secondary Internet connection the new Cisco 877 Integrated Services Router. Since the previous model was quite older (C837), I’m pretty impressed by the power of this new machine, which features a fully managed 4 ports FastEthernet switch. Thanks to VLAN support, this router will even be able to survive to the current ADSL line, since I can easily configure one FastEthernet port to be the WAN interface.

All unmatched great features of the Cisco IOS 12.4T bring this router among ones best priced in the SME market.