My Network Security Journal
Sharing my learning and personal experience in IT Network Security.
Friday, July 5, 2024
Changing a Cisco Switchport Mode From Access to Trunk
›
I had to reconfigure a Cisco switchport mode from access to a trunk in order to run multiple VLANs in a Cisco ASA firewall interface. I conf...
Sunday, June 2, 2024
Troubleshoot Cisco IPSec Anti-Replay Error
›
Here's a Cisco link for troubleshooting an IPSec anti-replay errors. I was troubleshooting and observed a lot %CRYPTO-4-PKT_REPLAY_ERR...
Saturday, May 4, 2024
Troubleshoot Cisco ASA MM_WAIT_MSG2 Stuck Issue
›
I had to troubleshoot a site-to-site IPSec VPN in a Cisco ASA firewall in Multiple Context mode. The IKE Phase 1 State was stuck in MM_WAIT_...
Saturday, April 6, 2024
Cisco ASA Firewall SSH Key Exchange
›
I had an issue wherein I couldn't SSH to a Cisco ASA firewall and received a key exchange error. I've checked the configured SSH key...
Saturday, March 9, 2024
Cisco Secure Firewall 3100 ASA Smart License
›
The license feature Encryption-3DES-AES was disabled by default and I needed to add the Standard Smart license (Essential license) for the...
Saturday, February 3, 2024
Cisco Secure Firewall 3100 ASA Software Upgrade
›
The Cisco Secure Firewall 3100 series is the latest Next-Generation Firewall (NGFW) product from Cisco. The 3100 can be deployed to run eit...
‹
›
Home
View web version
