L-IP User Manual
46
LOYTEC
Version 6.1
LOYTEC electronics GmbH
8 - MD5 authentication, 9 - MD5 secret
If authentication is required enable MD5 authentication and enter the 16-byte MD5 secret.
Note that for security purposes the active MD5 secret is not displayed. Either enter the 16
bytes as one string or with spaces between each byte.
e.g. 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
0 - Location string
Enter a location string with a maximum length of 255 characters. This is optional and for
informational purposes only.
a - NAT Address
If the L-IP is used behind a NAT router the public IP address of the NAT router or firewall
must be known. This address can either be entered manually or can be determined
automatically. Automatic NAT router discovery allows operating the L-IP behind a NAT
router or firewall, which has a dynamic public IP address, and determines the correct NAT
address from the L-IP CS. This is the default setting.
Enable automatic NAT router discovery (y/n):
Figure 36: Enable/Disable automatic NAT router discovery
To enable/disable automatic NAT router discovery select this menu option. The question in
Figure 36 will be prompted on the console. Choose ‘y’ to enable automatic NAT router
discovery. To manually enter a NAT address, choose ‘n’ and enter the NAT address when
requested to do so. To completely disable the NAT router support, choose ‘n’ and enter the
IP address 0.0.0.0 when requested to enter the NAT address.
Important:
Automatic NAT router discovery does not work if the local CEA-852 configuration server
is enabled! If the configuration server is operated behind a NAT router or firewall enter
the NAT address manually! The configuration server needs a fixed IP address!
Automatic NAT router discovery only works with LOYTEC CEA-852 configuration
servers!
If an L-IP uses automatic NAT router discovery and the NAT address is known beforehand
then the L-IP can simply be added to the channel in the L-IP configuration server by
specifying the NAT address and correct port. To add more than one L-IP behind a NAT
refer to Section 7.3.2.
If the NAT address is not known, take the following steps to add the L-IP to an IP-852
channel in the configuration server:
On the L-IP turn on automatic NAT router discovery (this is the default setting). The
NAT address should show “
Auto (no NAT)
”.
Enter the IP address of the configuration server in the CEA-852 device configuration
menu. Exit and save but do not reboot.
Go back to the main menu. Wait 15 seconds.
Go to the CEA-852 device configuration menu. The NAT address should show the
public IP address of the NAT router or firewall (e.g. “
Auto (198.18.76.1)
“).
On the configuration server add the L-IP to the configuration server using this IP
address.