Author Archives: christianscholz
An era has ended and another era starts – taking my Juniper-Career to the next Level
Maybe some of you already heared it – Beginning tomorrow (1st of February 2018) I will no longer be working for Dimension Data. In the recent years the Juniper-Projects were… Read more »
Disable IPv6 Router-Advertisements on Windows Server 2012 / 2016
Lately I did a huge amount of IPv6-Setups and I noticed something in the vCenter: All the Boxes with static IP’s still had 2 IPv6-Adresses (one static and one per… Read more »
NAT64 with vSRX 15.1X49-D120
Yesterday, as part of my JNCIE-SEC Training, I reviewed NAT64 with the following Topology: I pinged from Win to Winserver with Traffic going over Gemini(vSRX 15.1X49-D120), Pisces (vMX 17.3R1-S1.6),… Read more »
vSRX D120 is out – and runs fine on EVE
The new vSRX15.1X49-D120 is out and of course I already spinned it up with EVE 😉 What should I say – it runs just fine – just like D100 and… Read more »
NAT64 – Practical Example
On my way to JNCIE, NAT64 is also a Topic – below you will find a working example of how I achieved this – comments are welcomed 🙂 Site 1… Read more »
JunOS Service restart via cronjob
Some days ago we had trouble on one of our QFXes where the jdhcpd deamon would consume 100% CPU and “crash” – resulting in users not getting IP’s anymore. While… Read more »
Firefly Perimeter – OSPF over GRE over IPsec
After attending the JNCIE-SEC bootcamp last week, I saw that one topic was barely mentioned: The way of running OSPF over GRE over IPsec. Since this setup is barely used… Read more »
From Quad to Hexa – DL360G7 CPU-Upgrade
Thanks to my Buddy Malte I was finally able to upgrade my Server from Quad-Core to Hexa-Core and I also replaced the SATA-Drives with SAS 6Gbit/s ones to Speed-Up the… Read more »
NAT64/46
Today I experimented with NAT64 / NAT46 a bit. The Setup to test this is relatively easy: I took 2 Windows-Servers (2008R2), one with only IPv4 and one with only… Read more »