IPv6 Info
Comparison of IPv6 application support
This is a comparison of popular Internet applications in regards to their support of the IPv6 protocol.
| Application | Category | IPv6 supported | Zone ID supported | Earliest version # with IPv6 support | Notes |
| AbsoluteTelnet SSH | SHH Cleint, Telnet Client, SFTP Client | Yes | No | 5.01 | Supports SSH, Telnet, and SFTP |
| Active Directory | LDAP server | - | - | - | - |
| Apache httpd | Web server | Yes | N/A | 2.0.14 | "Virtual hosts on IPv6 addresses are broken in versions until 2.0.28" |
| Apple Mail | e-mail client | Yes | - | - | - |
| BIND | DNS server | Yes | N/A | - | - |
| BSD Telnet | Console application | Yes | Yes | 1.2 | Telnet and telnetd from OpenBSD. |
| CUPS | Digital printing | Yes | - | 1.2 | - |
| cURL | File transfer software | Yes | - | - | - |
| ffproxy | Proxy server | Yes | - | 1.5 | Non-caching proxy. |
| ftp.exe | Console application | Yes | Yes | 5.1 (XP) | Standard Windows FTP client. |
| Hiawatha | Web server | Yes | N/A | 6.0 | - |
| IIS | Web server | Yes | N/A | 6.0 | - |
| Internet Explorer | Web browser | Yes | No | 4.01 | Versions before 7.0 may not be able to handle numerical addresses. Macintosh versions do not support IPv6. |
| Irssi | IRC client | Yes | - | 0.7.15 | - |
| Konqueror | Web browser | Yes | Yes | 2.2 | - |
| lighttpd | Web server | Yes | N/A | - | - |
| Linux CIFS VFS | SMB/CIFS client | Yes | - | 1.49 | cifs vfs version 1.48 is part of kernel 2.6.21 |
| Linux NetKit ftp | Console application | Yes | Yes | 0.17 | Standard Linux FTP client |
| Linux NetKit Telnet | Console application | Yes | Yes | 0.17 | Standard Linux telnet client and server |