User Guide

4 Installing 7signal Sapphire 10
7signal Solutions Inc., 526 S. Main Street, Akron, Ohio 44311, USA, 855-763-9526, [e-mail],
www.7signal.com
7signal Sapphire Deployment Guide Release 5.0
Step 6: Check network interface naming rules
If the laptop has multiple WLAN cards (e.g. an internal and an USB card), rules related to network
interface naming need to be checked in order to get correct names for network interfaces. Network
interfaces used by Sapphire Eye Software must be “wlan0” and “wlan1”.
Open file /etc/udev/rules.d/70-persistent-net.rules in an editor
Lines concerning WLAN devices could be like the following:
# PCI device 0xxxxx:0xxxxx (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:27:10:xx:xx:xx",
ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
# USB device 0xxxx:0xxxx (usb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="50:46:5d:xx:xx:xx",
ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"
As it can be seen, “wlan0” is allocated for PCI device, and “wlan1” is allocated for USB device. If USB
WLAN card is to be used, change the name of network interface of the PCI device to “wlan10”, and name
of the USB device to “wlan0”. Using “wlan10” for PCI device leaves “wlan1” free, as “wlan1” will be later
created by Sapphire Eye Software:
# PCI device 0xxxxx:0xxxxx (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:27:10:xx:xx:xx",
ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan10"
# USB device 0xxxx:0xxxx (usb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="50:46:5d:xx:xx:xx",
ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
Save the file and reboot the system. After reboot, verify that “wlan0” is dedicated for USB WLAN card:
# ifconfig –a
…
wlan0 Link encap:Ethernet HWaddr 50:46:5D:xx:xx:xx
BROADCAST MULTICAST MTU:1500 Metric:1
…
wlan10 Link encap:Ethernet HWaddr 00:27:10:xxx:xxx:xx
BROADCAST MULTICAST MTU:1500 Metric:1
Step 7: Verify network interface configuration
Open file /etc/sysconfig/networking/devices/ifcfg-eth0 in an editor
 Check and change if necessary:
o Change "NM_CONTROLLED" to "no"
o Change "ONBOOT" to "yes"
 Save file
 If the file “/etc/sysconfig/networking/devices/ifcfg-wlan0” exists:
o Open file /etc/sysconfig/networking/devices/ifcfg-wlan0
o Change "NM_CONTROLLED" to "no"
o Change “HWADDR” to contain MAC address of the WLAN card, if necessary
 Save file