Learning OSPF with one Juniper SRX100 (basic)

One of the beauties of Jumiper SRX is it has a heritage function from ScreenOS called “virtual router”. Unlike ScreenOS, Junos has the ability link virtual routers up with logical interfaces (lt-0/0/0). With these 2 features, Virtual routers could have their own route tables, could simulate several routers within a single box of SRX, and could run routing protocols between them. (I have tried with Cisco VRF, but it doesn’t work as expected.)
Continue reading

DDNS at ScreenOS

Dynamic Domain Name Service (DDNS) is not anything new from the last decade. It associates a domain name to an IP address that changes over time. Users could access to the resources behind a dynamic IP address assigned CPE with an easily memorized domain name instead.

In this post, I ll post the procedure of setting up DDNS at ScreenOS using NO-IP DDNS service with SSL enabled in GUI. One of ScreenOS’ beauties is the GUI management.
Continue reading