This article will explain how to add a security zone with a dedicated VLan, DHCP scope and DNS proxy rule. For the purpose of this example, we will add a guest zone with the following parameters : VLan ID : 40 Subnet : 10.10.40.0/24 Gateway IP (layer 3 interface) : 10.10.40.1 DHCP Scope : 10.10.40.128/25… Read More »
If you have an Intel card and the necessary “Advanced Network Services (ANS)”, that is bundled with the Intel driver, you have the capability to manage VLans for your network interface with PowerShell. 1. Use the “ipconfig” command to find out the name of your adapter. Example : PS C:\WINDOWS\system32> ipconfig Windows IP Configuration Ethernet… Read More »
Here is how to configure DHCP relay on the QFX platform. 1. Define a DHCP server group with DHCP servers IP address(es) : set forwarding-options dhcp-relay server-group <server-group-name> <ip.address> Example : If you want to name the group as “PRD-dhcpSrv” and the IP of the server is 10.1.1.10 : set forwarding-options dhcp-relay server-group PRD-dhcpSrv 10.1.1.10… Read More »
If you are running a Virtual Chassis on EX, QFX or MX platform and end up in a situation where one of the vc-port show up on one unit, and down on the other, this lecture is for you! Let’s do a quick recap on the behavior : 1. Interface set as vc-port (SFP+ or… Read More »
Under some rare circumstances, you may require to change the default route metric. The first way of doing should be through the “ifcfg-ethX” configuration file by adding the “METRIC=” statement. However it has been found to be inefficient for me and had to apply it using “ip route” as followed : ip route del default… Read More »
Encountering the following error in the logs of your Juniper device? /kernel: Buffer management parity error detected in mpfe1, value 0x4001, re-init the PFE /kernel: Buffer management parity error detected in mpfe1, value 0, re-init the PFE This is most likely pointing toward defective hardware, more specifically memory issue. If this message showed only once,… Read More »
A friend of mine who was used to the legacy and EOL SSG/ScreenOS platform and he just jumped into the new world of SRX/JunOS gave me the motivation to write this article. As the syntax is quite different between the two platform, it may be harder to get at first and the following example should… Read More »
Getting the following error on your Juniper EX/MX/QFX virtual chassis? fpc1 CMLC: Going disconnected; Routing engine chassis socket closed abruptly This message is informational and does not necessary indicate any serious issue, for example in a graceful Routing Engine switchover (GRES) context / if you flipped the routing-engine (RE) on purpose. However if this is… Read More »
I ran into a weird issue trying to adopt several Ubiquiti UniFi AP Mesh Pro access points on a newly created site within the UniFi controller lately. Here is the behavior encountered : – Newly UniFi access point deployed showed up in the controller for adoption ; – Clicking “Adopt” did started the provisioning process… Read More »
If your Power over Ethernet (PoE) device(s) connected to an EX 4300-48p switch suddenly lose power unexpectedly after some time working just fine, you may be experiencing PoE controller software issue. First of all, verify if you are not over your PoE power budget (this could be sometimes the case when you have a LOT… Read More »