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Month: December 2018

Automate Let’s Encrypt SSL Cert to Cisco VPN router

Automate Let’s Encrypt SSL Cert to Cisco VPN router

If you would like to completely automate the renewal of a Let’s Encrypt (or other) SSL Certificate and then deploy this to your Cisco IOS router (or ASA Firewall) using simple bash scripts, keep reading. There are really three components to solving the issue, first of course is that your FQDN (vpn.yoursite.com) has to be registered with a DNS server – Google is best if you have a dynamic IP address. Here is how you would do that – https://support.google.com/domains/answer/6147083…

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SSL VPN (Webvpn) on Cisco 800 series router

SSL VPN (Webvpn) on Cisco 800 series router

I needed to get a VPN setup for a test case and after spending a considerable amount of time ironing out all the bugs (including the infamous Microsoft patch KB258554) which caused unnecessary headaches, I thought I’d just post it here if someone else can use it. Two things, I’ll suggest, One, make sure that you have a newer version of IOS and two don’t forget to explicitly specify ‘SSL Encryption type’ under your gateway configuration, So, here is the…

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