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ASDM

Cisco ASA – Inbound TCP connection denied from x.x.x.x to x.x.x flags SYN on interface Outside

October 15, 2018 by Phil

Problem: After setting up a site to site VPN tunnel on a Cisco ASA firewall, traffic was being dropped with the message “Inbound TCP connection denied from x.x.x.x to x.x.x flags SYN on interface Outside” The traffic inbound on this …

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Azure: Site-to-Site VPN with a Cisco ASA using ASDM

October 9, 2021July 2, 2018 by Phil

Overview: In this post, we are going to link an Azure Virtual Network to an on-premise network via a Cisco ASA. We will be creating a route-based connection using IKEv2 and a VTI interface. We are also going to focus …

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