To configure an EoGRE tunnel with LANconfig, navigate to , click EoGRE tunnel and select the appropriate tunnel.
- Interface
- Name of the selected EoGRE tunnel.
- Active
- Activates or deactivates the EoGRE tunnel. Deactivated EoGRE tunnels do not send or receive any data.
- Server address
- Address of the EoGRE tunnel endpoint (valid IPv4 or IPv6 address or FQDN).
- Routing tag
- Routing tag for the connection to the EoGRE tunnel endpoint. The device maps data packets to this EoGRE tunnel by means of the routing tag.
- Checksum
- Here you specify whether the GRE header should contain a check sum. With the check sum function enabled, the device calculates a checksum for the transmitted data and attaches this to the GRE tunnel header. If the GRE header of incoming data contains a checksum, the device checks this against the transmitted data. The device discards any data received with an erroneous or missing check sum. With the checksum function disabled, the device sends all tunnel data without a checksum and it expected data packets without a checksum. Incoming data packets with a checksum in the GRE header are discarded.
- Key present
- Here you specify whether the GRE header should contain a key for data-flow control. If you enable this feature, the device inserts the value set in the key field into the GRE header for this EoGRE tunnel. The device only maps incoming data packets to this EoGRE tunnel if their GRE header contains an identical key value. With this feature disabled, the GRE header of outgoing data packets does not contain a key value. The device only maps incoming data packets to this EoGRE tunnel if their GRE header similarly does not contain a key value.
- Key
- The key that assures data-flow control in this EoGRE tunnel. Two devices connected via several EoGRE tunnels use this key to map the data packets to the appropriate EoGRE tunnel.
- Sequencing
- Here you specify whether the GRE header contains information about the sequence of the data packets. With this feature enabled, the device includes a counter in the GRE header of outgoing data packets in order to communicate the sequence of the data packets to the EoGRE tunnel endpoint. The device analyses the sequence of incoming data packets and drops packets with an incorrect or missing packet sequence.
