2026.02.17 255364b8e serveraccess

Serveraccess Packets

Version: 2026.02.17-255364b8e

This category contains 3 packet(s).

Packet Index

ID	Name	Package	Compressed	Max Size
0xFA	RequestServerAccess	com.hypixel.hytale.protocol.packets.serveraccess	No	3 bytes
0xFB	UpdateServerAccess	com.hypixel.hytale.protocol.packets.serveraccess	No	1600 MB
0xFC	SetServerAccess	com.hypixel.hytale.protocol.packets.serveraccess	No	15.6 MB

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RequestServerAccess

Property	Value
Packet ID	0xFA (250)
Compressed	No
Fixed Block Size	3 bytes
Variable Field Count	0
Max Size	3 bytes
Variable Block Start	3

Fields

Name	Type	Offset	Size	Encoding	Nullable
access	Access	0	1	byte	No
externalPort	short	1	2	int16_le	No

Layout Notes: Fixed block contains 'access' at offset 0 and 'externalPort' at offset 1. No variable section or nullable bits.

access enum values:

• 0 = Private
• 1 = LAN
• 2 = Friend
• 3 = Open

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UpdateServerAccess

Property	Value
Packet ID	0xFB (251)
Compressed	No
Fixed Block Size	2 bytes
Variable Field Count	1
Max Size	1600 MB
Nullable Bit Field	1 byte(s)
Variable Block Start	2

Fields

Name	Type	Offset	Size	Encoding	Nullable
access	Access	1	1	byte	No
hosts	HostAddress[]	-1	var	nested:HostAddress	Yes

Layout Notes: Fixed block contains nullable bits at offset 0, access byte at offset 1. Variable data (hosts array) starts at offset 2, with count as varint.

access enum values:

• 0 = Private
• 1 = LAN
• 2 = Friend
• 3 = Open

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SetServerAccess

Property	Value
Packet ID	0xFC (252)
Compressed	No
Fixed Block Size	2 bytes
Variable Field Count	1
Max Size	15.6 MB
Nullable Bit Field	1 byte(s)
Variable Block Start	2

Fields

Name	Type	Offset	Size	Encoding	Nullable
access	Access	1	1	byte	No
password	String	-1	var	var_string:utf8	Yes

Layout Notes: Fixed block contains nullable bits at offset 0, access byte at offset 1. Variable data (password) starts at offset 2, with length prefix as VarInt.

access enum values:

• 0 = Private
• 1 = LAN
• 2 = Friend
• 3 = Open

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