| Name | Description | Type | Package | Framework |
| AbstractSocks4Message | An abstract Socks4Message. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| DefaultSocks4CommandRequest | The default Socks4CommandRequest. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| DefaultSocks4CommandResponse | The default Socks4CommandResponse. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4ClientDecoder | Decodes a single Socks4CommandResponse from the inbound ByteBufs. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4ClientEncoder | Encodes a Socks4CommandRequest into a ByteBuf. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4CommandRequest | A SOCKS4a CONNECT or BIND request. | Interface | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4CommandResponse | Interface | io.netty.handler.codec.socksx.v4 | Netty | |
| Socks4CommandStatus | The status of Socks4CommandResponse. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4CommandType | The type of Socks4CommandRequest. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4Message | A tag interface that all SOCKS4a protocol messages implement. | Interface | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4ServerDecoder | Decodes a single Socks4CommandRequest from the inbound ByteBufs. | Class | io.netty.handler.codec.socksx.v4 | Netty |
| Socks4ServerEncoder | Encodes a Socks4CommandResponse into a ByteBuf. | Class | io.netty.handler.codec.socksx.v4 | Netty |