I want to implement a redundancy solution. I have two subnets all windows XP machines – each with their own DHCP server – joined by a bridge. Currently – all machines get DHCP leases from the one DHCP server with the other disabled. For when the bridge goes down – I want to split my DHCP scope among multiple servers. How can I do this on Windows XP client machines? The most common way to [...]

Given a LAN with default gateway of 10.5.1.1 and subnet of 255.255.0.0 The DHCP range is currently set in the range of 10.5.2.1 to 10.5.3.254 The 10.5.1.x range is reserved for static IP’s. I want to increase the DHCP pool ( the 10.5.2.x – 10.5.3.x range is too small ) Is this DHCP scope limited to the 2.x and 3.x range because of the 255.255.0.0 subnet? I cannot change the subnet in this scenario. When [...]

Given a LAN with default gateway of 10.5.1.1 and subnet of 255.255.0.0 The DHCP range is currently set in the range of 10.5.2.1 to 10.5.3.254 The 10.5.1.x range is reserved for static IP’s. I want to increase the DHCP pool ( the 10.5.2.x – 10.5.3.x range is too small ) Is this DHCP scope limited to the 2.x and 3.x range because of the 255.255.0.0 subnet? I cannot change the subnet in this scenario. When [...]

I have a problem in one of my shell scripts. Asked a few colleagues, but they all just shake their heads (after some scratching), so I’ve come here for an answer. According to my understanding the following shell script should print “Count is 5″ as the last line. Except it doesn’t. It prints “Count is 0″. If the “while read” is replaced with any other kind of loop, it works just fine. Here’s the script: [...]

I’m running Windows Server 2008 R2 for my DHCP server. We are about to switch over to a VoIP system and Cisco VoIP phones. I would like to assign a specific range of IPs to these phones which will have a common MAC prefix (ex. 00:01:02). I would prefer to have them in the same scope as our computers if possible. Does anyone have any suggestions? You can use reservations to map specific IP addresses [...]