The anatomy of a network router’s routing table
A route table is essentially a database used by a router to determine the optimal path for forwarding data packets. It consists of a collection of entries, each representing a destination network or a specific host. These entries contain essential …
Network Routers are ….
Network routers are a bit like vampires—they thrive in the dark and cool. When heat waves strike, they huddle in server rooms, longing for winter or a polar vortex to save the day. Anything to escape the blistering heat that …
What is TCAM memory in a router? and is it still needed?
Many higher-end routers have a specialized type of memory known as TCAM (Ternary Content Addressable Memory). In this post, I will explain the intricacies of TCAM memory in routers, exploring what it is, how it works, and its critical role …
Packets Down Range #6:OpenWifi, iOT, RDOF,CBRS
Welcome to issue #6 of Packets Down Range. The thing I am excited about lately is the 100 Gig passive mux by solid optics. One of the hats I wear is running an IX. We are always looking for ways …
WIFI calling port forwarding
Recently I came across a need to do some port forwarding for wifi calling. I have assembled a resource guide to help you if you need to do such things. IPSEC should be allowed per RFC 5996 https://tools.ietf.org/html/rfc5996 for all …
CCR1016 BGP route pull down
This morning I had a Mikrotik CCR1016 where I had to change the router ID, which caused all the sessions to reset. The following is a screenshot of the time it took to re-learn all of the peers. Obviously, the …
Ultimate DD-WRT router guide
Custom firmware, such as DD-WRT makes the process easier, and provides you with a lot of additional options as well
Edgerouter config shortcuts by Willie Howe
My buddy Willie Howe has some configuration tips on using spreadsheets to help creating large amounts of VLANs and such on Ubiquiti Edge Routers
Guest Article:Routers can catch viruses
Our friends over at TechWarn have their take on routers vulnerable to virus attacks
How VRFs work
virtual routing and forwarding (VRF) is a technology that allows multiple instances of a routing table to co-exist within the same router