Nets menu contains commands for managing networks and VLANs (Layer-2 networks). Normal user can only see list of networks that have lower or same privilege level set than the user has. VLAN information is by default visible only for users with privilege level 5 or above (this can be controlled via ALEVEL_VLANS variable in configuration file).
Networks are divided into two types "Net" and "Subnet". Where "Net" is used for networks that are delegated for your use (and you generate reverse zones for). "Subnet" is used for networks (subnets) within these "Nets" (networks). This information is used (along with VLAN information) to generate network topology for DHCP configuration.
VLANs are used to describe the "Layer-2 network" topology of your network. Each network can be assigned to one VLAN. All networks that don't have VLAN set are part of virtual VLAN called "CHAOS" (normal VLAN names are always lower case).
Networks command lists all the networks that are defined for active server. To view details of a network, just click on the network. To edit or delete selected network use Edit or Delete buttons. For information about selected network use Net Info button that displays technical information about given network and map of IPs currently in use.
Add net command is used to create a new "Net" (network) for active server. This should be used only for networks that are delegated for your use. This command is only available for administrator.
Add subnet command is used to create a new "Subnet" for active server. This should be used for all subnets within your official networks. This command is only available for administrator.
Edit button is used to modify existing network. See Table 5-8 for information about fields used in this dialog. This button is only available for administrator when viewing network details.
Table 5-8. Edit Net Dialog
| Field | Description | Example |
|---|---|---|
| Net name | Network (subnet) name (handle that can contain only letters and numbers and hyphen) | sales-net |
| Description | Long description of network | Sales Deparment Network |
| Net (CIDR) | Network defined as CIDR block | 192.168.1.0/24 |
| VLAN | VLAN (Layer-2 network) this network belongs to | None |
| Authorization level | Authorization level required for user to see this network | 0 |
| Private (hide from browser) | Private network (hide from browser.cgi) | No |
| Comment | Optional comments aobut this network | |
| Range start | Auto assign address range start (Sauron will automatically assign new IP addresses from a network that are inside the auto assign range). | 192.168.1.1 |
| Range end | Auto assign address range end. | 192.168.1.254 |
| DHCP | DHCP enabled flag; this network is "visible" to DHCP server only if this is enabled | Enabled |
| Net specific DHCP entries | DHCP configuration options lines specific to this network (don't use semicolon at the end of these lines). |
VLANs command lists all VLANs (Layer-2 networks) that are defined for active server. To view details of a VLAN, just click on the network. To edit or delete selected network use Edit or Delete buttons. This command is only available for users with sufficiently high authorization level.
Add vlan command is used to create a new VLAN (Layer-2 network) entry for active server. This command is only available for administrator.