My Network Security Journal

Sharing my learning and personal experience in IT Network Security.

Saturday, May 19, 2018

Troubleshooting Failover on Cisco Active-Standby ASA Firewall

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I've encountered failover flapping between an Active and Standby Cisco ASA firewalls which caused an IPSec VPN tunnels to go down. You...
Saturday, May 5, 2018

Site-to-Site IKEv2 IPSec VPN between Cisco IOS Router and ASA Firewall

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I usually configure IKEv1 Site-to-Site IPSec VPNs but I needed to do an IKEv2 this time between a Cisco IOS router and ASA firewall. Y...
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John Lloyd Lagura
I'm John Lloyd Lagura, a passionate Network Engineer, tech blogger and a lifelong learner. I specialize in routing, switching, security, wireless and cloud technologies. I currently hold CompTIA Network+, Security+, ITIL Foundation, Cisco CCNP Security, CCNP Enterprise, CCNA Cyber Ops, Juniper JNCIA-Junos, JNCIA-SEC, JNCIA-Design, Fortinet Network Security Professional (NSE4).
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