I.R.I.S. DC1100 - Manual (Page 21)

Coaxial Networks, Inc. Page 21 of 60
Configuration
Configuring IRIS
All IRIS systems can operate in Bridge or Routing mode with NAT enabled on the cable
interface. At the time of shipping the system IRIS is configured to work in the routing mode with
NAT enabled on the cable interface.
When NAT is enabled IRIS routes packets from its cable interface to the Ethernet interface and
vice-versa. The diagram below represents the IP network topology with such configuration.
The cable interface is defined as “en1” interface and the Ethernet interface is defined as “en2”
Logging into IRIS
To configure IRIS you will have to login to IRIS either using the serial console port or over the
network using the web interface or telnet program.
Connecting from Ethernet interface
You should have already connected the IRIS uplink Ethernet interface to a switch or to a PC
using a cross over Ethernet cable. Configure your PC to have static IP address such as
192.168.21.100 and subnet mask 255.255.255.0. Make sure no other device on this network has
this IP address.
Ethernet Interface
en2
IP: 192.168.21.1
Netmask: 255.255.255.0
Cable Interface
en1
CM Network
IP: 10.1.1.1
Netmask: 255.255.255.0
CPE Network
IP:10.71.0.1
Netmask: 255.255.252.0
IRIS DC1100