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Why You Can't Ignore DHCPv6 Anymore (And How It Actually Works)
CCNP 1 min read Apr 30, 2026
Why You Can't Ignore DHCPv6 Anymore (And How It Actually Works)

The transition to IPv6 isn't just a future concept anymore; it's the current reality of network engineering. While…

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How to setup Tailscale in opensense
Firewalls 2 min read Apr 6, 2026
How to setup Tailscale in opensense

Enable ssh on OPNsenseAfter login go to System > Administration > Secure Shell Server (check this box),…

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CCNP 1 min read Feb 16, 2026
VXLAN on cisco Nexus

Enable features nv overlay evpn feature ospf feature bgp feature interface-vlan feature vn-segment-vlan-based…

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CCNP Quiz 1 min read Aug 20, 2025
Quiz: Neighbors are placed in the same BGP update-group when they share:

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CCNP Quiz 1 min read Aug 20, 2025
Quiz: What is the main purpose of a BGP update-group in Cisco routers?

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Quiz: Why we do not see route for 2.2.2.2 on CE-2 Router?  We have this route on ISP-2 routerISP-2#show i…
CCNP Quiz 1 min read Aug 6, 2025
Quiz: Why we do not see route for 2.2.2.2 on CE-2 Router?  We have this route on ISP-2 routerISP-2#show i…

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BGP Summary lab
CCNP 1 min read Jul 25, 2025
BGP Summary lab

R1R1#sh running-config Building configuration... Current configuration : 1641 bytes ! hostname R1 ! ! ! interface…

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CCNA Quiz 1 min read Jul 23, 2025
Quiz: Which of the following is not a reason for an OSPF neighbor relationship to remain in the 2-way stat…

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CCNA Quiz 1 min read Jul 23, 2025
Quiz: A router receives an ARP reply for an IP address that’s already in its ARP table but with a differen…

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