Configure OPNsense and NSX-T to exchange routes using BGP

What am I trying to do? As per the diagram above, OPNsense is the gateway and firewall that allows all internal networks to talk to the internet. I have few logical L2 networks configured in NSX and I want them to talk to the internet and physical networks (vlan 20, vlan 30) connected to OPNsense. Routing information will be exchanged between NSX and OPNsense using BGP. BFD will be used to detect any faults between NSX and OPNsense....

June 20, 2024 · 2 min · Jahnin Rajamoni

NSX-T Edge Tunnels down

I ran into the same issue as described by Eric Sloof: https://www.ntpro.nl/blog/archives/3570-Edge-Tunnels-Down-when-hosting-NSX-T-on-the-same-DVS.html The problem I had was i did not have enough uplinks to create a new dvSwitch to get the tunnel to work. For the tunnel to work, the geneve traffic has to leave the host and get routed back in. I had a layer 3 physical switch and decided to make use of inter-vlan routing. Once logged into the switch:...

August 24, 2020 · 1 min · Jahnin Rajamoni

Creating a t0 edge in NSX-T to connect an internal physical network to an external physical network

Some notes from a recent lab I configured: My current lab looks like this -  I have few production VMs in one VLAN segment  External network access and Internet access is through another VLAN segment There is a jumpbox VM that is uplinked to both the VLAN segments. VMware vDS is currently being used and there are no free uplinks to make use of nvds. What do I want to accomplish?...

July 20, 2020 · 3 min · Jahnin Rajamoni

Manually configuring VLAN on a VMKernel interface managed by vNetwork Distributed Switch (vDS)

I accidentally used the wrong VLAN on a portgroup in vDS while playing with NSX-T.(long story) This caused vCenter to lose access to all the hosts in a cluster. There is a KB article that goes through a few hoops before we can get the hosts back into vCenter Server, Recovering from a management portgroup VLAN misconfiguration on a vNetwork Distributed Switch (vDS) To resolve the issue, As i still had access to vCenter, after configuring the right vlan in vCenter I used net-dvs to manually change the vlan on each vmkernel interface....

July 14, 2020 · 1 min · Jahnin Rajamoni

Reverting VLAN changes on a dvSwitch portgroup

I recently lost access to few of my ESXi hosts after using the incorrect VLAN on the dvSwitch portgroup. Was unable to find any command to change the VLAN of a dvSwitch portgroup from the command line. Luckily I came across the Network Restore Option in DCUI To restore VDS from DCUI: Connect to the DCUI. From the Network Restore Options menu, select Restore vDS. Type the correct values for VLAN uplink and blocked properties, where appropriate....

April 29, 2016 · 1 min · Jahnin Rajamoni