Cato Client Last-Mile Support for IPv6

This article provides information about the Cato Client supporting IPv6.

Overview

Note

Note: To enable Last-Mile support for IPv6 in your account, contact Support. 

The Cato Client supports connecting to the Cato Cloud through ISPs that provide last-mile IPv6-only connections. This ensures compatibility with modern networking standards. The Client also supports last-mile connections in dual-stack environments, where IPv4 is disabled.

The Client performs NAT64 to translate IPv6 addresses to IPv4 addresses. The NAT64 prefix within an IPv6 address is collected by the Client allowing it to connect to the Cato Cloud.

For monitoring and troubleshooting purposes, the IPv6 address appears on the Statistics page in the Client.

Prerequisites

Supported on these Client versions:

  • Windows Client v5.11 and higher

  • macOS Client v5.7 and higher

  • iOS Client v5.4 and higher

Known Limitations

  • In dual-stack environments where IPv4 is blocked, the Time-to-Connect can be up to 12 seconds

  • The macOS Client does not support IPv6 in a captive portal

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