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Darrell Root

I'm a retired network engineer. Since retiring I've been writing Swift applications for MacOS and iOS as an independent developer. Most of these are applications useful for network engineers:

  1. Etherdump: Packet capture and analysis tool
  2. Network Mom ACL Analyzer: Analyzes Cisco ACLs
  3. Network Mom Availability: Monitors devices and reports availability metrics
  4. Netrek: A reimplementation of the classic internet game using Swift and SpriteKit (open-sourced)

Binaries for all three are in the MacOS 10.14 Mojave App Store. Etherdump and Netrek sources are public in my GitHub repository.

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45 Usage of 192.168.xxx, 172.xxx and 10.xxx in private networks Jan 20 '20
5 VLAN Filtering not working Aug 5 '20
5 Reccomended set up for wifi in dense apartment block? Mar 26 '20
5 Why the network switch drop the frame acording to ethertype/length? Feb 13 '20
5 How can I legally get a software upgrade for my Cisco Wireless controller without a service contract so it supports my more recent access-point? Jan 26 '20
5 Unknown EtherType Jan 23 '20
5 Can a single subnet work across several switches? Jan 19 '20
5 packet routing between subnets on same vlan Dec 1 '19
5 Cisco Nexus 9300 TCAM carving Oct 31 '19
5 Why ICMP Destination Port Unreachable error messeage is generated for unreliable UDP packets? Oct 11 '19
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