Stop IPv4 Point-To-Point Addressing your Networks
cooperleesIPv4 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 IP and route…
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 of Flow labels…
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 daemon released by…
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 so I took…
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. set system login class RANCID permissions access set system…
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 release via a…
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 I thought I…
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 'stand alone' non…
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, VC or is…
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 the fabric up…