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  • Enterprise - Security

    First post in a long while, so I did a video on EIGRP OTP and GETVPN.

    August 12, 2022 - By Jon Major

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  • Enterprise - Security

    FlexVPN: Spoke-2-Spoke PSK

    July 11, 2019 - By Jon Major

    So in my last post I covered configuring FlexVPN with dynamic spoke to spoke communication using certificates for authentication. What if you wanted to use pre-shared-keys though? We can do that, it’s not nearly as secure as certificate based authentication, but we can do that. We’ll be using the exact…

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  • Enterprise - Security

    FlexVPN: Spoke-2-Spoke Tunnels

    July 11, 2019 - By Jon Major

    Let’s talk about FlexVPN, a prime contender as a DMVPN replacement and sometimes referred to as DMVPN phase 4. In this post, I’m going to explore the nuts and bolts of getting FlexVPN up and running between (3) routers and, for added flare, I’m going to also configure dynamic spoke-2-spoke…

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  • Security

    We need to talk about GETVPN

    April 23, 2018 - By Jon Major

    We really have to talk about GETVPN. Despite its drawbacks, I can’t seem to get it out of my head now and I’m constantly running through scenarios where using it might make sense. If you’re not too familiar with GETVPN, let me offer this high-level summary of the technology. GETVPN…

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  • Security

    Dynamic Site-2-Site VPNs with Cisco ASA

    August 15, 2016 - By Jon Major

    So let’s take a moment and assume your life is too easy, and you want to punish yourself. But how?! Here’s a way, let’s use the ASA for sites-2-site VPN. Even better, the spoke sites have be able to have dynamic IPs, and also need connectivity to other spokes. Also,…

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  • Security

    Jon’s Recipe for Encrypted Internet w/ ASA

    January 19, 2016 - By Jon Major

    Have you ever wanted to encrypt your entire home’s internet connection? Of course you have, don’t lie to yourself… you’ve at least thought about it. Now if you’re a PFSense user, you might go with purchasing service through Private Internet Access, and configuring your pfsense firewall to be an openvpn…

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Recent Posts

  • Cisco ACI // SQL AAG
  • First post in a long while, so I did a video on EIGRP OTP and GETVPN.
  • Cisco ISE and Azure AD – Part 1
  • Cisco IOS & SNMP: A backdoor into devices you can’t access.
  • FlexVPN: Spoke-2-Spoke PSK

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ACI ASA BGP Challenges Firepower VPN VxLAN WSA
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