Stop IPv4 Point-To-Point Addressing your Networks

IPv4 addressing on links is no longer required to route IPv4. What you say?? Yes, you can stop IPv4 addressing your point to point links with Legacy…

IPv6 + Flow labels

Recently a teammate and I have come across a frame forwarding issue with ECMP on a hardware ASIC in a device I work on where the use…

IPv6 Tacacs+ Support (tac_plus)

Recently @ Facebook¬†we found that we required IPv6 access to TACACS for auth (AAA) for the majority of our production Network Equipment. Tacacs+ (tac_plus) is an old…

30 Levels of NAT Lab #2 – Juniper SRX100s

Well, I had the chance again to play with lots of Firewalls, so I did. A customer had ordered > than 30 SRX100s for clustered branch deployments…

RANCID with Junos Read-Only User

Here is the setting for a Junos device to create a user with read only privileges to allow RANCID to work. [plain] set system login class RANCID…

Updating Juniper QFabric

The follow post shows output obtained and the ¬†upgrade process performed recently on a clients QFabric system. This output was captured updating from 12.2X30 to 12.2X50 Junos…

Juniper SRX Chassis Cluster RG0 Nagios Check

I was required to check (as this customer did not have a trap collector) which node was active for redundancy group 0 on a SRX cluster. So…

SRX Branch Chassis Cluster Ports

Here is a table of the ports that are used for chassis cluster control link and management ports on Branch SRX devices. The quoted ports are the…

Backup your Junos configs TODAY !

Cooper’s tip of the moment, ALWAYS backup your Junos configurations. Hate when a customer does not, your router does not have raid (unless it has redundant REs,…

QFabric Part 2 – Lets get Down and Dirty Deploying and Configuring …

Juniper is selling QFabric as a bundle. Due to this the install has been templated and will be similar in regards to the control plane and getting…