| Echo protocol |
| Description | Glossary | RFCs | Publications | Obsolete RFCs |
| Protocol suite: | TCP/IP. |
| Type: | Application layer protocol. |
| Port: | 7 (TCP, UDP). |
| SNMP MIBs: | |
| Working groups: |
An Echo server returns whatever data is received to the originating source.
| MAC header | IP header | TCP header | Echo message |
| MAC header | IP header | UDP header | Echo message |
RFCs:
[RFC 347] Echo Process.
[RFC 862] Echo Protocol.
| Description | Glossary | RFCs | Publications | Obsolete RFCs |