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My scenario: I needed to move DHCP from server 2012 to server 2012 R2 with leases. I wanted to do this quickly and safely. You can run all of these commands from your new DHCP server: Install DHCP + MGMT tools on the new server. Install-windowsfeature DHCP -includemanagementtools Authorize the new server Add-DhcpServerInDC Backup the …
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What problem are we trying to solve? We want to prevent the rouge DHCP Server from assinging addresses out to our clients. Normally this would be your favorite wanna-be IT employee that brings his own Linksys router in the mix to fix the network 🙂 Of course it can also protect from malicious …
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The problem : What if we want to speak IPv6 but the whole path isn't IPv6? Here is our topology let's begin. IOSv1 and 2 are dual stacked, however the link between IOSv1 and IOSv2 is not IPv6. This link represents many routers. There's always a chance that they don't support IPv6 …
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Prefix-lists are typically used by router "features" to provide filtering. They "pass" permitted networks to a filtering feature which will actually do the filtering. They are used by distribute-lists, filter-lists, route-maps. Basics Some quick points which will guide you on understanding the basics. IP prefix list can match on sub netmask of route (ranges). They …
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Here is our topology... R1 has a loopback of 1.1.1.1/32 R2 has 2.2.2.2/32 R3 has 3.3.3.3/32 R4 has 4.4.4.4/32 R4 has 9.9.9.9/32 R1 to R2 is 10.0.1.0/24 (area 1) R2 to R3 is 10.0.2.0/24 (area 0) R3 to R4 is 10.0.3.0/24 (area 2) R3 which is our ABR, has been configured …
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