Knowledge is the Power at Work

 EIGRP Route Filtering - Distribute lists: Access list, Prefix list - Administrative Distance - Passive Interface EIGRP specific Route Filtering - Distribute Lists with Route-Maps - Route Tag Enhancements - Per Neighbor Prefix Limits - EIGRP is a Distance Vector IGP protocol. We can apply route filtering in anywhere where we want to be in Topology.

When you are facing the issues that the kernel errors something like firewall is rebooting auto or outage of power supply accidently. So all the LAN interfaces shut down in the firewall. Problem: The errors will be like this: EXT2-fs(sdb1):previous I/O error to superblock detected. EXT2-fs(sdb1):previous I/O error to superblock detected. EXT2-fs(sdb1):previous I/O error to superblock detected. Troubleshooting Commands: 1) Try to get the debug logs https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-download-debug-log-file-at-different/ta-p/193211 2) Get the result details #get hardware status #get system status #get system performance status # diagnose sys flash list # diagnose autoupdate status # diagnose autoupdate versions # diag debug crashlog read # diagnose hardware sysinfo memory # diagnose hardware sysinfo shm # diagnose hardware sysinfo slab # diagnose debug crashlog read # diagnose hardware deviceinfo disk # diagnose sys session stat Resolution: The issue is res...

  Layer 2 Ether Channel 1) Static Etherchannel SW(config-if-rang)#channel-group 1 mode on - Both switches have to configure using ON/ON - No negotation - Interface type must be the same(ethernet/giga) - Speed duplex must be the same (full/half) 2) LACP- Multi Vendor - Both switches must be Active/Active or Active/Passive - SW(config-if-range)#channel-group 1 mode Active 3) PAGP- Cisco Property - Both Switches must be Desirable(initiate)/Auto(response) Or Disable/Disable SW(config-if-range)#channel-group 1 mode desirable Layer 3 Ether Channel - Assign the ip address to the port channel group. SW(config-if-rang)#no switchport SW(config-if-rang)#channel-group 1 mode on SW(config-if-rang)#int po1 SW(config-if-rang)#ip add 10.10.10.1 255.255.255.252