System Management
Cyberoam User Guide
System Management
Configure Network
Configure Network
Network setting consists of Interface Configuration, DHCP Configuration and DNS Configuration.
Configure Network from Console and update if required, from GUI. For details, refer to the
Installation Guide for Network.
The first step is to specify DNS (Domain Name Server), update DHCP if required and update
Interface Configuration if required from Console.
To configure, follow the steps:
Note
Before you configure network, make sure that you have the correct information and any needed IP addresses. If you configure incorrectly, the server will not be able to connect to the network (Internal or external)
Configure DNS
A Domain Name Server translates domain names to IP addresses. You can configure domain name server for your network as follows.
At the time of installation, you configured the IP address of a single primary DNS server. You can change this primary DNS server any time and also define additional DNS servers.
Select
System Æ Configure Network Æ Configure DNS
Screen – Configure DNS
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System Management
Cyberoam User Guide Configure Network
Screen Elements Description
DNS List
Add button
Displays list of Domain name servers
List order indicates preference of DNS. If more than one
Domain name server exists, query will be resolved according to the order specified.
Allows to add IP address of Domain Name Server
Multiple DNS server can be defined
Click Add
Type IP address
Click OK
Remove button
Move Up button
Allows to remove IP address of Domain Name Server
Click IP address to select
Click Remove
Changes the order of server when more than one DNS server defined
Moves the selected Server one step up
Click IP address which is to be moved up
Click MoveUp
Move Down button Changes the order of server when more than one DNS server is defined
Moves the selected Server one step down
Click IP address which is to be moved down
Click Move Down
Save button Updates the DNS details and order, if modified
Click Save
Redirect DNS traffic to local DNS Server
redirection
Click Enable to redirect
Table - Configure DNS
To add multiple DNS repeat the above-described procedure. Use Move Up & Move Down buttons to change the order of DNS. If more than one Domain name server exists, query will be resolved according to the order specified.
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System Management
Cyberoam User Guide
Configure DHCP
Configure Network
Dynamic Host Configuration Protocol (DHCP) is a protocol that assigns a unique IP address to a device, releases and renews the address as device leaves and re-joins the network. The device can have different IP address every time it connects to the network.
In other words, it provides a mechanism for allocating IP address dynamically so that addresses can be re-used.
Select
System → Configure Network → Configure DHCP
Screen - Configure DHCP
Screen Elements Description
DHCP Details
Network Interface
Interface IP
Netmask
IP address
From – To
Displays Network Interface i.e. Internal or External
Displays IP address assigned to Interface
Displays Netmask
Displays IP address range for clients, modify if required
The DHCP server assigns an available IP address in the range to the client upon request
Domain name
Subnet Mask
Gateway
Displays domain name for the specified subnet, modify if required
Displays subnet mask for the client/network, modify if required
Displays IP address of Gateway, modify if required
Domain name server Displays IP address of Domain name server, modify if required
Update DHCP button Updates the modified details
Table - Configure DHCP screen elements
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System Management
Cyberoam User Guide
View Interface details
Configure Network
Use to view the Interface configuration
Select
System Æ Configure Network Æ View Interface details
Screen – Cyberoam as Gateway - View Interface details
Screen – Cyberoam as Bridge - View Interface details
Screen Elements Description
Internal Interface name
IP address
Net mask
Displays list of all the Internal Interface(s)
Internal Interface connects server with clients.
By default, eth0 is termed as Internal Interface
Displays IP address of Internal Interface
Displays Net mask
Displays list of all External Interface(s)
External Interface name External Interface connects server to the external network
By default, eth1 is termed as External Interface
IP address
Net mask
Displays IP address of External Interface
Displays Net mask
Table – View Interface details screen elements
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System Management
Cyberoam User Guide
Manage Gateway
Manage Gateway
Gateway routes traffic between the networks and if gateway fails, communication with outside
Network is not possible. In this case, organization and its customers are left with significant downtime and financial loss.
By default, Cyberoam supports only one gateway. However, since organizations opt for multiple gateways to cope with gateway failure problems, Cyberoam also provides an option for supporting multiple gateways. However, simply adding one more gateway is not an end to the problem.
Optimal utilization of all the gateways is also necessary.
Cyberoam not only supports multiple gateways but also provides a way to utilize total bandwidth of all the gateways optimally.
At the time of installation, you configured the IP address for a default gateway. You can change this configuration any time and configure for additional gateways. You can configure for additional
Gateways only if Multiple Gateway add-on module is registered.
To view the Gateway details, select
System Æ Gateway Æ Manage Gateway(s)
Screen – Gateway Configuration
Screen Elements Description
Gateway Details
Gateway Name Displays Gateway name address
Save button
Cancel button
IP address of a device Cyberoam uses to reach devices on different
Network, typically a router
Saves the modified details
Click to save
Cancels the current operation and returns to Manage Gateway page
Click to cancel
Table - Gateway Configuration screen elements
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