Cisco IOS – Setting Up DHCP Scopes
KB ID 0001112 I usually only have to do this on very small sites, or occasionally on the test bench. Most of the time we will have a server sat doing DHCP. The procedure below was carried out on a router, but the procedure is the same for a catalyst switch. By default DHCP is disabled, you have to turn it on, then create a ‘dhcp pool.’ Petes-Router(config)#service dhcp Petes-Router(config)#ip dhcp pool DATA-VLAN-10 Then...
HP Networking – Tracing Networks and Locating IP addresses
KB ID 0001110 After not touching one for a couple of years, I was back on HP switches recently, and I had to map out a clients switches. Now I could have used some software, but they didn’t have SNMP enabled so, I had to ‘re acquaint’ myself with LLDP. For a basic LLDP View of attached devices. HP-Switch-1# show lldp info remote-device LLDP Remote Devices Information LocalPort | ChassisId PortId PortDescr SysName...
Exchange – Message Not Sent ‘Because there are too many recipients’
When attempting to send an email to a large amount of recipients, you may see the following error; This message wasn’t delivered to anyone because there are too many recipients, the limit is {number}. This message has {number} recipients To check what the limit is set to launch the Exchange Management Shell, and ecxecute the following command; Get-TranportConfig To raise the limit (in this example to...
GNS3 – Initial Setup, Adding Routers, Hosts, and ASA Firewalls
KB ID 0000927 NOTE: THIS ARTICLE IS FOR THE OLD VERSION OF GNS3 GO HERE FOR THE NEW ONE Problem I dip into GNS3 every so often, (depending on what I’m working on). And each time I install it, I spend just as long remembering how to set it up, as I do using it! So, if for no other reason than I can use this page as a reference in future, here’s how to get it up and running. Solution Note: At time of writing he latest...
Build a PIX Firewall for your test network
Working with GNS3 and PEMU – (Part 2) KB ID 0000662 Problem In Part 1 we installed and Licensed our Virtual PIX, now we will give it an IP address and get the firewalls web management console running. To complete this procedure you will need to, 1. Have a TFTP server up and running (CLICK HERE). 2. Know how to connect to a Cisco Firewall (CLICK HERE). Solution Step 1 (Add an interface to your host machine) 1. On your host PC/VM...
I’m Going on Holiday, What do I need to Disable on my iPhone?
KB ID 0000622 Problem Here in Europe the big mobile Telco’s are being forced to keep roaming prices down. But going abroad with all your data services turned on can mean you might come back to a big bill. Solution 1. On most peoples phones “Data Roaming” is already disabled (Mines always off).Data Roaming is designed to let you use another provider’s phone network if your carrier signal is too weak. On some...
VMware Error – HARDWARE _VITRTUALIZATION WARNING
KB ID 0000570 Problem Seen while installing vSphere ESX 5 (In this case, on a Dell Power Edge). Warning(s) <HARDWARE_VIRTUALIZATION WARNING: Hardware Virtualization is not a feature of the CPU, or it is not enabled in the BIOS> Solution Unless you have a “quite old” server, you simply need to enable “virtualization Technology” in the machines BIOS. 1. On this machine (Dell PowerEdge T410) enter the BIOS...
Cisco Catalyst Switches – Adding Licenses
KB ID 0001012 Problem I had a load of Cisco Catalyst 3560 switches that needed ‘ipbase’ licenses adding to them today. I’ve messed about with plenty of ASA license upgrades before, but not switches. Solution 1. First thing you need is a Cisco PAK, this may be in an email or turn up in a cardboard envelope. 2. Go to http://www.cisco.com/go/license and log in (if you don’t already have a Cisco CCO account you...
Cisco AnyConnect – Adding Multiple VPN Devices to the Client
KB ID 0001011 Problem If you connect to a lot of different firewalls, then constantly having to change the address you are going to can be a pain. Particularly if some clients don’t have a host name for their device, and you can’t remember everyone’s IP addresses. Solution I do this slightly different to most other people, I create a connection file for every endpoint I want to go to, because a) I can transfer them...
Event ID 62464 ‘Source amdkmdag’
KB ID 0000613 Problem My laptop has an annoying habit of ‘freezing” and requiring a manual power off and back on again to get it working (HP Probook 6560b). A look in the system log yielded hundreds of event ID 62464 errors. Log Name: System Source: amdkmdag Date: xx/xx/xxxx xx:xx:xx PM Event ID: 62464 Task Category: DVD_OV Level: Information Keywords: Classic User: N/A Computer: xxxxxxxxx Description: UVD Information...