Using Non-Cisco SFPs on a Cisco router switch

by | Aug 9, 2023 | Networking

If you use a Non-Cisco SFP on a Cisco switch or router, then you can potentially take down the entire network. When it happens, you will see that the entire line module is down or in other words, all the ports in that line module will go under err-diable state. Yes,...

Private IP address space

by | Dec 18, 2022 | Networking

RFC 1918 Address Allocation for Private Internets February 1996 3. Private Address Space The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets: 10.0.0.0 – 10.255.255.255 (10/8 prefix)...

what is Diffie Hellman

by | Dec 11, 2022 | Networking, Security

Diffie Hellman (DH) is a key agreement algorithm describes a means for two parties to agree upon a shared secret over a public network in such a way that the secret will be unavailable to eavesdroppers. The DH algorithm converts the shared secret into an arbitrary...

How to reset Cisco password

by | Jun 11, 2022 | Networking

Now that you are reading this blog, I know that you are in trouble. You have changed the password of your cisco and forgot to write it down. Let’s be honest we all have done this, there’s nothing to worry about. You can safely reset your Cisco password...