If your local network topology changes frequently—new subnets are added or removed on a regular basis—manually maintaining static routes becomes error-prone and slow to converge. Open Shortest Path First (OSPF) eliminates this overhead by automatically adjusting routing in response to topology changes. Use OSPF on an SAG-1000 device to reduce convergence time and remove the need for manual route updates.
Prerequisites
Before you begin, make sure you have:
An SAG-1000 device
Configure OSPF protocol settings
Log on to the Smart Access Gateway console.
Open the Device Management tab using one of the following methods:
Click the ID of the target SAG instance. On the instance details page, click Device Management.
Find the target SAG instance. In the Actions column, choose
> Device Management.
Click the Manage Routes tab.
In the OSPF Protocol Settings section, click Edit.
On the Configure OSPF Protocol page, configure the following parameters. Authentication MD5 authentication is recommended for production environments. Plain text authentication sends credentials unencrypted and should only be used in isolated test networks.
Protocol parameters
Parameter Description Area ID The OSPF area identifier. Valid values: 1 to 2,147,483,647. Hello Time The interval at which Hello packets are sent to OSPF neighbors. Valid values: 1 to 65,535. Dead Time The interval after which an OSPF neighbor is declared down if no Hello packet is received. Valid values: 1 to 65,535. Router ID The IPv4 address that uniquely identifies this router in the OSPF domain. Example: 192.168.1.1.Area Type The OSPF area type. Default: NSSA. Parameter Description Authentication type The authentication method for OSPF neighbor exchanges. Options: - Disable Authentication — No authentication.
- Plain Text — Password-based authentication. The password must be 1–8 characters and can contain letters, digits, hyphens (
-), and underscores (_). - MD5 Authentication (recommended) — Cryptographic authentication. Requires an MD5 key ID (1 to 2,147,483,647) and an MD5 key (1 to 47).
In the WAN/LAN Dynamic Routing Settings section, select Enable OSPF Protocol.
Find the target port and click Edit in the Actions column.
On the Modify OSPF Dynamic Routing Settings page, select whether to enable OSPF for the port, then click OK:
Enable OSPF — Activates OSPF on the selected port.
Disabled — Deactivates OSPF on the selected port.