PREFER_IPV4_STACK
You can use PREFER_IPV4_STACK to return an IPV4 address of the host name used to connect to the Guardium appliance.
- Required
- No
- Default
- N
- Permitted Values
- N, Y
- Description
-
If set to Y, this keyword causes a request to be issued to the Domain Name Server (DNS) for an IPV4 address of the host name specified by the APPLIANCE_SERVER keyword:
- The DNS lookup request for an IPV4 address is attempted. If an IPV4 address is defined for the host name, the DNS responds with the value used to connect to the Guardium appliance.
- If the DNS defines only an IPV6 address, the DNS responds with the IPV6 address used to connect to the Guardium appliance.
- If both IPV4 and IPV6 addresses are defined at the Guardium appliance, the DNS responds with both addresses, and the IPV4 address is used to connect to the appliance.
If this keyword is set to N or omitted from configuration, a request for an IPV6 address is issued to the DNS for the host name specified by the APPLIANCE_SERVER keyword:- The DNS lookup request for an IPV6 address is attempted. If an IPV6 address is defined for the host name, the DNS responds with the value used to connect to the Guardium appliance.
- If the DNS defines only an IPV4 address, the DNS responds with the IPV4 address used to connect to the Guardium appliance.
- If both IPV4 and IPV6 addresses are defined at the Guardium appliance, the DNS responds with both addresses, and the IPV4 address is used to connect to the appliance.
- Notes
- Whether or not this keyword is used, an invalid address for the host name returned from the DNS results in failure to connect to the appliance, and the started task terminates.
- Syntax
-
PREFER_IPV4_STACK(N) - Example
-
PREFER_IVP4_STACK(Y)