BNETDocs 
| Message Id: | 0x25 |
|---|---|
| Message Name: | SID_PING |
| Direction: | Client to Server |
| Used By: | Diablo II, Diablo II Lord of Destruction Diablo Retail, Diablo Shareware Starcraft Japanese, Starcraft Broodwar Starcraft Shareware, Starcraft Original Warcraft II BNE, Warcraft III The Frozen Throne Warcraft III Reign of Chaos |
| 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.