Posts Tagged ‘CISCO’

Modular QoS CLI (MQC)

April 19th, 2010 No comments

The Modular QoS CLI (MQC) command structure found in Cisco IOS® Software requires a class map is built incorporating the ACLs that identify the traffic that will have QoS applied to them. Read more…

Categories: Network Design Tags: ,

Basic IPv6 Routing Setup – Example

March 21st, 2010 No comments

This is a simple example and step-by-step configuration of two LAN segments connecting over a Frame Relay WAN link.  IPv6 Addressing is used. Read more…

Categories: CISCO Tags: ,

Port Forwarding using Static NAT

November 25th, 2009 No comments

I was recently asked a question about port numbers on web servers. This answer will apply to any DMZ host, whether http, ftp, telnet or ssh.

The question as phrased was:

If you decided to use a different port for your web server (say port 8080), how would a user make requests to your web server?

Read more…

Categories: CISCO Tags: ,

Cisco Unified Expert Advisor

July 30th, 2009 No comments

Cisco Unified Expert Advisor is a very good alternative to traditional call-handling and would be especially good for call centres, avoiding the frustration of CTI (press 1 for this, 2 for that, etc.) and also having to take pot-luck, hoping that you’ll eventually speak to somebody who has relevant expertise. Read more…

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Configuring 802.1x on Cisco CatOS

July 25th, 2009 No comments

Here is an example of how to configure 802.1x on a Cisco 6500-series running CatOS:  (if you wish to configure dot1x on IOS, read this post)

Read more…

Categories: CISCO, Security Tags:

Network Diagram – Typical Medium Enterprise

July 21st, 2009 No comments

Shows examples of router redundancy / failover capabilitiesat Layer 3 and also Layer 2 spanning-tree root bridge configuration to enable pseudo-load balancing by using PVST.

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Categories: CISCO Tags:

Hacking Cisco NAC (BlackHat Video)

July 19th, 2009 No comments

Cisco NAC (Network Admission Control) enable security policy enforcement on end-devices attaching to the network.  This video produced by reveals a critical vulnerability:

Read more…

Categories: CISCO, Security Tags:

Cisco Routers in Space!

July 9th, 2009 No comments

Cisco announced more details on its plans to bring IP routers to the world of satellites (or shall we say ‘solar system of satellites’?).

At its Cisco Live user conference last week, the company said that it was about to launch a trial run of its Internet Routers In Space (IRIS) program with the US defense department.  READ MORE AND VIEW VIDEO:

Read more…

Categories: CISCO Tags:

Freeradius – and Cisco 802.1x configuration

July 8th, 2009 No comments

If you want to practice radius configuration, or if you are testing a Cisco RADIUS setup without having access to the production server, here is a nice solution and sample config.

The Cisco configuration is for the IOS.  If you want to know how to configure on CatOS, read this post Read more…

Categories: CISCO, Security Tags:

Configuration change tracking

July 8th, 2009 No comments

This has been available since IOS 12.3(4)T/12.2(25)S. For each configuration command that is executed, the following information will be logged:

• The command that was executed
• The configuration mode in which the command was executed
• The name of the user that executed the command
• The time at which the command was executed
• A configuration change sequence number
• Parser return codes for the command

You can have this information stored in a local buffer or sent to a syslog server.  Here’s a basic configuration that will get you going:

Read more…

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