A censored packet capture showing primary packet fragments but no secondary part.

Eduroam, EAP-TLS and a Dropped Packet Fragment

Students from a visiting school could not get onto eduroam using certificates. The cause turned out to be an ACL in our own network quietly dropping the non-initial fragments of large RADIUS packets.

L2TP/IPSec for Remote Access with VyOS

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IOS-XR Upgrades – PIEs, SMUs and Certificate Expirations

I recently had to upgrade an ASR9001 but found myself resolving a Cisco Field notice which prevented the installation of updates...