A whitelist is a list of entities that are authorized to access a service or application; it’s like being on the guest list for a party.
In CAST, you can create an IP address whitelist, so that only the IP addresses on that list are allowed to connect to CQG trading applications, such as CQG Integrated Client and CQG Trader. This list also applies to traders connecting through FIX.
On a trader-by-trader basis, you can add either an individual IP address or an IP address range (IPv4 format). If whitelist filtering is turned on, then requests to log on that come from IP addresses not on the list are denied connection. (Traders receive an error message stating why.)
Note: Existing traders are not automatically added to the whitelist and the default for new traders is to be excluded from the list.
To turn on IP whitelisting for a trader
IP information is entered on the Trader Info page. Again, we recommend that you ask your network administrator for assistance.
1. On the Trader Info page in the IP Address Whitelisting section, click the Add new IP Address button.
2. Type the IP address network portion.
3. Type the IP address subnet mask.
4. Click Save.
These steps store the IP information. Turning whitelisting on requires an additional step, allowing you the flexibility to turn whitelisting on and off without having to remove the IP information.
To turn off IP whitelisting, clear the Engage checkbox, then click Save.
To remove the IP address, click the Remove checkbox, then click Save.
Permission required: CAST Users > CAST Permissions > Administration > Modify > Modify CAST User's IP Whitelist