Networking
IP Infusion powering the world from behind the scenes
Founded by Kunihiro Ishiguro and Yoshinari Yoshikawa the founders of GNU Zebra , came together to form IP …
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PCAP or it didn’t happen…. The t-shirt!
Some days I don’t know why I do things… But last night I was playing around with creating a PCAP meme when my friend Josh Kittle said he’d be interested in a t-shirt like that. I …
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Using Discontiguous Wildcard Masks in ACLs
Unlike subnet masks, wildcard masks allow you to use discontiguous bits which enable you to match on a range of values. Using these within routing protocols is typically frowned …
Read MorePoor man's VPN connection
Have you ever needed to access a site that had an IP restriction, or one inside your remote network? Recently I need to access a customers remote monitoring site, but its …
Read MoreNetcat – secret weapon
Netcat or nc, is a forgotten tool in too many arsenals these days. It lays dormant waiting at the command line to make connections across the globe for you. Knowing how to use it, …
Read MoreUsing /31 subnets for point-to-point interfaces
Recently a “colleague”, I use that term very loosely here, was reviewing my recommendations for changes on his network. Since they’re rather tight on public IP space, and require …
Read MoreHow does latency effect throughput?
One of the questions I get asked several times a week by my clients is as such. While most people never associate latency with the amount of data they can send across a single TCP …
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