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Generate Code: All packets
Packets

Packet Information


Message ID:0x25
  
Message Name:SID_PING
  
Direction:Server -> Client (Received)
  
Used By:Starcraft Shareware, Starcraft Broodwar, Diablo Shareware, Diablo II, Warcraft II, Warcraft III: The Frozen Throne, Starcraft, Starcraft Japanese, Diablo, Diablo, Warcraft III
  
Format:(DWORD) Ping Value
  
Remarks:Used to calculate Client's ping. The received DWORD should be sent directly back to Battle.net.

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 received DWORD is not what determines your ping, but it is actually a cookie for the Battle.net server. You should never change the DWORD.
  
Related:[0x25] SID_PING (C->S)

User Comments


For detailed questions and discussion, visit the Battle.net Research Forum

Jailout2000
Feb 25, 2009
11:16 PM

On Starcraft Broodwar, I theorize that this is sent by the server if you never send any data back to Battle.net when Battle.net expects you to. How I theorize this? I debugged Starcraft, and made it 'Pause'. I resumed it and Battle.net had sent SID_PING multiple times. It never sent SID_PING ever again until I paused for about 10-20 seconds then resumed.

If you do not send any data back to Battle.net after a certain period of time, but Battle.net knows you WERE sending data, Battle.net will send this packet to you.
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