Monthly Archives: November 2013

Cisco 5921 Embedded Service Router (ESR) on i386 Hardware in my DMVPN lab

Cisco released an embedded service router (ESR) which runs as a piece of software on a i386 hardware. Official Notes can be found here. The first time I heard of it I was very excited .. Just for a simple testing I do not have to fire up real router anymore instead I could reuse […]

DMVPN in an IPv4 and IPv6 mixed environment

As the IPv6 migration moves on, more and more Internet providers use IPv6 addresses for their customers to connect them. Due to the fact that the provider is doing the translation to enable the communication to the legacy IPv4 Internet, it may affect some VPN clients or VPN connections. At least I personally know some […]