D-Link DFL-260E User Manual page 185

4.5.3. OSPF Components
Reference Bandwidth
RFC 1583 Compatibility
Debug
Protocol debug provides a troubleshooting tool by logging OSPF protocol specific information to
the log.
• Off - Nothing is logged.
• Low - Logs all actions.
• Medium - Logs all actions that Low logs but with more detail.
• High - Logs everything with most detail.
Authentication
OSPF supports the following authentication options:
No (null) authentication
Passphrase
MD5 Digest
not the cluster.
Set the reference bandwidth that is used when calculating the
default interface cost for routes.
If bandwidth is used instead of specifying a metric on an OSPF
Interface, the cost is calculated using the following formula:
cost = reference bandwidth / bandwidth
Enable this if the NetDefend Firewall will be used in a
environment that consists of routers that only support RFC 1583.
Note
When using the High setting, the firewall will log a lot of information, even when just
connected to a small AS. Changing the advanced setting Log Send Per Sec Limit may
be required.
Note
When running OSPF on a HA Cluster there is a
need for a private master and private slave Router
ID as well as the shared Router ID.
No authentication is used for OSPF protocol exchanges.
A simple password is used to authenticate all the OSPF
protocol exchanges.
MD5 authentication consists of a key ID and 128-bit key.
When MD5 digest is used the specified key is used to produce
the 128-bit MD5 digest.
This does NOT mean that the OSPF packets are encrypted. If
the OSPF traffic needs to be encrypted then they must be sent
using a VPN. For example, using IPsec. Sending OSPF
packets through an IPsec tunnel is discussed further in
Section 4.5.5, "Setting Up OSPF".
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Chapter 4. Routing