TEK@link

6 Minutes

Security

Static routing with intermediate address in Checkpoint firewall

atlink'admin January 23, 2018 0 Comment

Static routing is supported by CKP (Checkpoint firewalls or gateways). Let’s recall that a static route defines a destination subnet or network and the way to reach it: the outgoing interface on the gateway,...

6 Minutes

Network

Vlan propagation and Cisco FabricPath

atlink'admin November 21, 2017 0 Comment

In this post, we explore the operation of Cisco FabricPath (FP) and more specifically Vlan information propagation in this fabric in comparison with other platforms: Catalyst for example from the same vendor. The case...

4 Minutes

Network

At the begining, … it was not DMVPN!

atlink'admin November 20, 2017 0 Comment

The simplest way to interconnect 3 or more routers in the same broadcast domain (and the same subnet) is by attaching them to a switch (or hub) in the same vlan. In case they’re...

4 Minutes

Network

EIGRP over a vNET trunk

atlink'admin November 17, 2017 0 Comment

In this blog we’ll explore the operation of IGP interior routing protocol EIGRP over vNET trunks (another way to say networking trunking similar to vlan trunks used in L2 network by switches to trunks...

6 Minutes

Network

VPNv4 BGP AS-Override Feature into play!

atlink'admin September 17, 2017 0 Comment

Let’s put into play AS-Override feature in BGP: see when it applies and how it works. First, AS-Override feature applies to sites that have the same AS number but are linked by another different...

Featured Posts

Network

R&D

You May Have Missed!