MCP/0x34/No Connection Detected (Tass Sucks at Topics)

[Tass]

why do you get No Battle.net connection detected? your not connected to bncs or mcp?

[UserLoser.]

BNCS?  How can MCP tell you if you're not connected to MCP?

[Tass]

What packets do you need to send before you start sendind packets through MCP?

[MyndFyre]

Well, BnetDocs discusses three packets used on the chat server related to realm communications: SID_QUERYREALMS, SID_QUERYREALMS2, and SID_LOGONREALMEX.  If I was interested I might have searched the forum for some information about these packets.

[Tass]

The documentation on 0x34 is poor can someone please make it clear to me


      
   
Message information: SID_QUERYREALMS (0x34)
   
   
Message ID:    0x34
Message Name:    SID_QUERYREALMS
Direction:    Client -> Server (Sent)
Used By:    Diablo II, Diablo II LOD

(DWORD)       Unused (0)
(DWORD)       Unused (0)
(STRING)     Unknown (empty)

What are Unusde (0) and Unknown (empty) equal too?

[Hdx]

There equil to 0x00 and NULL Respectivly.
Basically uour sending a packet with 9 null bytes.
FF 34 0D 00 00 00 00 00 00 00 00 00 00
~-~(HDX)~-~

[l2k-Shadow]

Use 0x40

[Tass]

So do you even have to send 0x34?

Right after you send 0x0A you send 0x40 and when you get 0x40 you send 3E when you pharse 3E you get the ip and connecto that that througt that and start sending MCP packets..

[l2k-Shadow]

0x40 replaces 0x34. The truth is you don't have to send either packet and just send 0x3E since you could make a function to determine which realm you are connecting to instead of sending the packet. Ex: if you connect to useast.battle.net, the realm would be USEast.

[LivedKrad]

Aren't there like 3 Asia servers though? Would you always connect to the same Asian Realm server or does it assign differently each time?

[Yegg]

Aren't there like 3 Asia servers though? Would you always connect to the same Asian Realm server or does it assign differently each time?

I know there is also a korea.battle.net. But I believe it just redirects to asia.battle.net.

[LivedKrad]

Aren't there like 3 Asia servers though? Would you always connect to the same Asian Realm server or does it assign differently each time?

I know there is also a korea.battle.net. But I believe it just redirects to asia.battle.net.

Well, my point was that if one were to make a function to choose a Realm server instead of receiving them from Battle.net, how would one determine which is the best if there is more than one? Sure the function obviously works for USEast, but what of the Asian Realm? I think the Realm server replies with 3 possible choices for Realms when using the SID_QUERYREALM packet.

[LivedKrad]

why do you get No Battle.net connection detected? your not connected to bncs or mcp?

Que?

[MyndFyre]

Have you sent SID_LOGONREALMEX yet?

[Hdx]

Well, my point was that if one were to make a function to choose a Realm server instead of receiving them from Battle.net, how would one determine which is the best if there is more than one? Sure the function obviously works for USEast, but what of the Asian Realm? I think the Realm server replies with 3 possible choices for Realms when using the SID_QUERYREALM packet.

It does.
ASIA1: 222.233.16.239
ASIA2: 222.233.48.9
ASIA3: 222.233.67.9
And from what i know, its just user prefance. Untill I select otherwise it ALWAYS logins to Asia1. No matter what account I use.

And for Tass, Heres the Full protocol from my notes. Learn it, Love it, Live it.
C->S BNCS: Protocol Byte (0x01)
C->S BNCS: (0x50) SID_AUTH_INFO
S->C BNCS: (0x25) SID_PING
C->S BNCS: (0x25) SID_PING
S->C BNCS: (0x50) SID_AUTH_INFO
C->S BNCS: (0x51) SID_AUTH_CHECK
S->C BNCS: (0x51) SID_AUTH_CHECK
C->S BNCS: (0x33) SID_GETFILETIME (Optional: bnserver-D2DV.ini)
S->C BNCS: (0x33) SID_GETFILETIME (Optional)
C->S BNCS: (0x3A) SID_LOGONRESPONSE
S->C BNCS: (0x3A) SID_LOGONRESPONSE
C->S BNCS: (0x40) SID_QUERYREALMS2
S->C BNCS: (0x40) SID_QUERYREALMS2
C->S BNCS: (0x3E) SID_LOGONREALMX
S->C BNCS: (0x3E) SID_LOGONREALMX
C->S MCP: Protocol Byte (0x01)
C->S MCP: (0x01) MCP_STARTUP
S->C MCP: (0x01) MCP_STARTUP
C->S MCP: (0x19) MCP_CHARLIST2
S->C MCP: (0x19) MCP_CHARLIST2
C->S MCP: (0x07) MCP_CHARLOGON
S->C MCP: (0x07) MCP_CHARLOGON
C->S MCP: (0x12) MCP_MOTD (Optional)
C->S BNCS: (0x0B) SID_GETCHANNELLIST (Optional)
C->S BNCS: (0x0A) SID_ENTERCHAT
S->C MCP: (0x12) MCP_MOTD (Optional)
S->C BNCS: (0x0B) SID_GETCHANNELLIST (Optional)
S->C BNCS: (0x0A) SID_ENTERCHAT
~-~(HDX)~-~