BNETDocs 
| Message Id: | 0x25 |
|---|---|
| Message Name: | SID_PING |
| Direction: | Client to Server |
| Used By: | Starcraft Original, Starcraft Broodwar Starcraft Shareware, Starcraft Japanese Diablo Retail, Diablo Shareware Diablo II, Diablo II Lord of Destruction Warcraft II BNE, Warcraft III Reign of Chaos Warcraft III The Frozen Throne |
| Format: | |
Ping response. Ping Value is the UINT32 received in the server's initial ping message.
The ping displayed when in chat can be artificially inflated by delaying before sending this packet, or deflated by responding before requested. Ping can be set to -1 (Strictly speaking, 0xFFFFFFFF, since ping is unsigned) by not responding to this packet at all.
The UINT32 received from the server is not what determines your ping, but it is actually a cookie for the Battle.net server. You should never change the UINT32.