Network Engineering
Jens Link
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About

Freelance computer geek, specialized in IPv6, monitoring (open source only), network troubleshooting.

Familiar with Linux (Debain GNU/Linux, Centos), Cisco Routing and Switching and JunOS Routing and Switching.

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94 PING port number? Jan 9 '17
34 Why are IPv4 addresses 32-bit? May 15 '14
31 Difference between sniffer tools Jul 23 '14
17 How can I calculate the number of internet routes myself? Apr 22 '14
11 Why are ethernet / mac -addresses in hex and ip numbers in decimals? Sep 23 '14
9 How does the transport layer tell UDP apart from TCP? Jan 19 '19
8 When doing 802.1X port authentication, how does the switch know how reach the authentication server? Sep 13 '18
8 Is there 64k range VLAN support? Apr 25 '18
8 Juniper Switching - Cheap Lab Aug 15 '14
7 When connecting 3 switch in Spanning tree, Should I use Switch port or SFP ports? May 20 '14
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