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Page 71 / 237 Scroll up to view Page 66 - 70
OxyGEN
mini
Office
Administrator’s Guide
Addresses
Each of the Interface Groups supporting the different services has its own private (LAN) IP address. The
Addresses
configuration menu allows the modification of this IP address for each Interface Group.
Figure 7.2: LAN Addresses
To configure the LAN IP address of a broadband service:
1. Make sure that the
Enabled
checkbox is checked
2. Enter the
IP Address
. For example, enter
192.168.1.254
3. Enter the
Netmask
. For example, enter
255.255.255.0
4. Click
Apply
.
Alternatively, you can use a DHCP client for automatic configuration of the LAN IP address of the
OxyGEN
mini
Office. Enable/Disable the DHCP client by selecting/deselecting the corresponding
DHCP
Client
checkbox.
Note
The default LAN IP address for the Data Interface Group is 192.168.1.254.
IPv6 Addresses
In IPv6-enabled products you can enable or disable the IPv6 functionality of the OxyGEN
mini
Office by
using the respective radio button that appears under IPv6 addresses. Note that enabling the generic
IPv6 functionality is necessary in order for subsection
IPv6 Options
to appear in page
62
.
Moreover, through the
Status
drop-down list, you can choose between
Off
,
Fixed
and
Auto
states for
each Interface Group. This option refers to the Unique Local Address (ULA) configuration. When option
Auto
is selected, a ULA address is configured for the respective interface based on a pseudo-random
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OxyGEN
mini
Office
Administrator’s Guide
Figure 7.3: IPv6 Addresses
algorithm that combines NTP time and the so-called EUI-64 identifier according to RFC 4193. Otherwise,
you may choose the
Fixed
mode of operation, where the administrator may define their own ULA format
by inserting the corresponding entries in the
Address
and
Mask
fields.
Finally, you can disable ULA
addresses by selecting
Off
option for the respective Interface Group.
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OxyGEN
mini
Office
Administrator’s Guide
DHCP
The embedded DHCP server of the OxyGEN
mini
Office allows the automatic network configuration of
all LAN devices on each Interface Group.
Figure 7.4: DHCP Server Configuration
To configure the DHCP Server:
1. Enable/Disable the DHCP server by selecting
On/Off
from the drop-down menu of
Status
column.
The status of the DHCP sever is changed accordingly. A third option is
Relay
, where the local
DHCP server is deactivated and all DHCP requests received on the LAN are forwarded to an
external DHCP server.
2. Specify the IP Address range by entering the
Start IP
and
End IP
values. In case of
Relay
operation,
only the
Start IP
entry field is active and must contain the IP address of the external DHCP server.
3. Configure the validity period of each assigned IP address under the
Lease Time
parameter. The
default lease time value is
86400
seconds (1 day).
4. Click
Apply
.
Note
By default the DHCP server is activated only for the Data Interface Group with an
address pool from 192.168.1.51 to 192.168.1.100.
Static DHCP Leases
The embedded DHCP server of the OxyGEN
mini
Office assigns IP settings to every device on each
Interface Group using the available addresses from the corresponding address pool in a dynamic way.
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OxyGEN
mini
Office
Administrator’s Guide
In some cases, however (e.g. port forwarding), it is required that a PC or some other network device
will always obtain the same IP address. In this case, the DHCP server is required to assign a fixed IP
address based on the physical (MAC) address of the device. The
Static DHCP Leases
configuration
page enables this functionality. Following the corresponding link, the following page appears:
Figure 7.5: Static DHCP Leases
At the top of the page, a list of the configured address reservations is displayed. You can
Delete
configured reservations by clicking on the icon
of
Action
column.
In order to make a new static DHCP lease, fill in the
MAC
address of the device along with the
desired
IP Address
and
Hostname
(optional)
and finally click
Save
. If the host has already got an IP
address automatically through the DHCP server, the MAC, IP Address and Hostname values can be
automatically filled in, through the
Host
drop-down list.
LAN IPv6 Addresses
For IPv6 enabled products, a second menu appears, entitled
LAN IPv6 addresses
. Here, you can specify
the method of IPv6 addressing to the LAN hosts.
In particular, for each Interface Group there is a
possibility of different options.
1. Stateless Address Configuration (SLAAC) method may be used for LAN addressing. To enable
this method,
Router Advertisements
(
RAs
) must be enabled by selecting option
On
in the
corresponding drop-down list.
With this option, Router Advertisements that contain Prefix and
LifeTime information are sent to the LAN hosts that belong to the specific Interface Group.
Moreover, RDNSS option is enabled, which means that supporting hosts may obtain DNS server
information as well.
If RAs are desirable but RDNSS option is not required, you may choose
option
On(no DNS)
. Finally, option
Off
disables router advertisements. Moreover, in the
Router
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OxyGEN
mini
Office
Administrator’s Guide
Advertisements
part of the page, detailed parameters, such as the
Maximum RA interval
,
Valid
and
Preferred Lifetime
may be configured (in seconds). Default values for these parameters are
600 secs, 86400 and 14400 secs respectively.
2. Stateless/Stateful
DHCPv6
method may be used. When
DHCPv6
drop-down list is set to
On
and
RA
option is enabled, the Router Advertisement packets have the so-called Other Configuration
Flag set to 1. Subsequently, the LAN host is dictated to start a DHCPv6 request and the OxyGEN
mini
Office provides it with stateless configuration parameters, such as DNS server, NTP, SIP servers,
AFTR server etc. If
DHCPv6
is
On
and
RA
option is
Off
, the Router Advertisement packets have
both Managed and Other Configuration Flags set to 1, which means that both prefix information
and stateless information are transmitted over DHCPv6. Finally, when
DHCPv6
is enabled, you may
choose whether the device will automatically assign the /64 prefixes to the LAN hosts derived from
the WAN-side obtained prefix (this may be done by selecting
Auto
from the list) or may be done
manually by selecting
Manual
and inserting the desired /64 subnet in the
Subnet
box. Finally, in
the
Manual
mode, you may also configure the
Lease
in seconds for each Interface Group.
Figure 7.6: LAN IPv6 Addresses
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75

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