Enabling Mini Jumbo Frames (RFC4638) on OpenReach FTTC

I swapped out my single Fortigate 100D at home a while back for a cluster of two in active/passive, as part of this migration, that I have written about before I needed to terminate any DHCP or PPPoE interfaces on a different piece of kit than the clustered firewalls. I have had this in the lab for a while on a Cisco 2811 router set up pretty much exactly like I had in the previous article....

August 28, 2016 Myles Gray

Deploying Cisco VIRL on VMware Workstation – Caveats

I recently tried to deploy Cisco VIRL on VMWare Workstation 10 - the install instructions ↗ are for v8 - there are a few differences I noted. It doesn’t account for the host-only network installed by default so increment all vmnets by 1 The labelling for VT-x/EPT has changed, it now lives under Settings -> Hardware -> Processors -> Virtualisation engine -> Preferred mode: You need to explicitly select Intel VT-x/EPT or AMD-V/RVI mode After this entering the sudo kvm-ok command in the VIRL CLI still output KVM acceleration can NOT be used....

December 3, 2014 Myles Gray

Serial and USB Console on Mac OSX

Obviously nowadays when admining we mostly have laptops - laptops don’t tend to come with serial I/O ports anymore, so you buy a Serial -> USB adapter, say this one ↗ or any one with a legit (there are fakes) FDTI FT232RL chipset. Download and install the relevant drivers but where do we go from here? Specifically on mac, find your device’s tty name: cd /dev ls -ltr *usb* I added a handy little alias to my...

September 11, 2013 Myles Gray