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NB5Plus4/W User Guide
YML754Rev1
5³
www.netcomm.com.au
Idle Timeout:
If there is no activity by the admin user
logged into the modem for the number
of minutes specified in this field, the
user will be required to login again.
Apply:
Click
Apply to save the changes.
WARNING: It is strongly recommended that you change the default username and
password to something unique.
Tools>Update Firmware
To update your NB5Plus4/W’s firmware, browse an update image file or configura
-
tion file and then click the Update Gateway button.
Additionally, you may download your configuration file from the system by clicking
“Get Configuration” so that you can store a backup of your configuration to restore
it at a later date.
Tools>Ping Test
The Ping test allows you to ping local and remote IP addresses to check for connec-
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YML754 Rev1
NB5Plus4/W User Guide
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57
To edit an existing Bridge Filter Rule, click the radio button adjacent to the Filter
Rule name.
The Rule will then appear in the top half of the Bridge Filter control
screen where it can be edited. When editing is complete, click ‘Add’ to return the
Rule to the list of existing rules.
To delete Bridge Filter Rules, click on the ‘Delete’ tick box; multiple deletions can be
made by shift-clicking Delete tick boxes; Select All will select every rule.
When the
desired selections are made, effect deletion by clicking on Apply.
To save changes, click on Apply.
Hidden Bridge Filter Rules
The Bridge filter table contains three hidden rules. These rules are built into the
Router to ensure the user does not become locked out by entering a rule which
prevents further access to the router.
The first rule allows any and all ARP frames through the system.
The second rule allows all IPv4 frames with the destination Bridge address of the
bridge to go through.
The third rule allows all IPv4 frames with the source MAC address of the bridge to
go through.
TIP:
To find the MAC address of a Windows-based computer, at the DOS prompt
type: ipconfig /all.
Advanced > Multicast
IGMP [=Internet Group Management Protocol] Multicast enables communication
Page 58 / 112
NB5Plus4/W User Guide
YML754Rev1
5´
www.netcomm.com.au
between a single sender and multiple receivers on a network. It is used when data
needs to be sent from one to many devices. Typical uses might include the updat-
ing of mobile personnel from a home office or the periodic publishing of an online
newsletter. Multicasting provides efficiencies which enable it to use less network
bandwidth than the sending of the same data by other means [e.g. SMTP].
To access Multicasting, click on Advanced>Multicast.
Page 59 / 112
YML754 Rev1
NB5Plus4/W User Guide
www.netcomm.com.au
5µ
To enable Multicast, open the multicast screen and select the Enable IGMP Multicast.
If you have multiple connections setup on your modem you will be able to choose
which connection to enable IGMP Multicast for.
Click the Apply button to save the settings.
Advanced > Static Routing
If the Router is required to serve more than one network, you will need to set up a
Static Route between the networks. Static routing can be used to allow users from
one IP domain to access the Internet through the Router in another domain.
A
Static Route provides the defined pathway that network information must travel to
reach the specific host or network which is providing Internet access .
To access the Static Routing controls, click on Advanced> Static Routing.
Configuring Static Routing:
Choose a Connection: presents list of Saved Connections.
Select appropriate con-
nection from list.
The New Destination IP is the address of the remote LAN network or host to which
you want to assign a static route. Enter the IP address of the host for which you
wish to create a static route here. For a standard Class C IP domain, the network
address is the first three fields of the New Destination IP, while the last field should
be 0. The Subnet Mask identifies which portion of an IP address is the network por
-
tion, and which portion is the host portion. For a full Class C Subnet, the Subnet
Mask is 255.255.255.0. The Gateway IP address should be the IP address of the
gateway device that allows for contact between the Gateway and the remote net-
work or host.
Gateway: IP address refers to the IP address of the near device that is to connect
with the remote network or host. If the Modem is fulfilling this function then its IP
address will be entered in this field.
Page 60 / 112
NB5Plus4/W User Guide
YML754Rev1
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www.netcomm.com.au
To save changes, click on Apply.
Advanced>Dynamic Routing
Dynamic Routing makes use of the RIP Protocol to allow the ADSL Router to au-
tomatically adjust to physical changes in the network. The NB5Plus4/W, using the
RIP protocol, will determine the network packet route based on the least number of
hops between the Source and the Destination. The RIP protocol regularly broadcasts
routing information to other Routers on the network and is part of the IP Suite.
To access Dynamic Routing click Advanced>Dynamic Routing.
Option
Description
E°able RIP:
If this box is checked, Dynamic Routing
is enabled.
Protocol:
Choice is dependent upon the network
environment. Most networks support Rip
v1. If RIP v1 is selected, routing data
will be sent in RIP v1 format. If Rip V2 is
selected, routing data will be sent in RIP
v2 format using Subnet Broadcasting. If
Rip V1 Compatible is selected, routing
data will be sent in RIP v2 format using
Multicasting.
E°able Password:
Enable to password protect the Dynamic
Routing settings.
Directio°:
Determines the direction that RIP routes
will be updated.

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