[GH-ISSUE #4911] [Feature Request] Simple Proxy Protocol for UDP

gitea-mirror commented

2026-05-05 14:28:35 -06:00

Owner

Originally created by @akaboydeve on GitHub (Aug 6, 2025).
Original GitHub issue: https://github.com/fatedier/frp/issues/4911

Describe the feature request

like cloudflare spectrum implement this feature
https://developers.cloudflare.com/spectrum/reference/simple-proxy-protocol-header/
we can get proxy protocol in UDP and supported service can use them

struct {
    uint16_t magic;
    uint8_t  client_addr[16];
    uint8_t  proxy_addr[16];
    uint16_t client_port;
    uint16_t proxy_port;
};

Describe alternatives you've considered

No response

Affected area

Docs
Installation
Performance and Scalability
Security
User Experience
Test and Release
Developer Infrastructure
Client Plugin
Server Plugin
Extensions
Others

Originally created by @akaboydeve on GitHub (Aug 6, 2025). Original GitHub issue: https://github.com/fatedier/frp/issues/4911 ### Describe the feature request like cloudflare spectrum implement this feature https://developers.cloudflare.com/spectrum/reference/simple-proxy-protocol-header/ we can get proxy protocol in UDP and supported service can use them ``` struct { uint16_t magic; uint8_t client_addr[16]; uint8_t proxy_addr[16]; uint16_t client_port; uint16_t proxy_port; }; ``` ### Describe alternatives you've considered _No response_ ### Affected area - [x] Docs - [x] Installation - [x] Performance and Scalability - [ ] Security - [ ] User Experience - [ ] Test and Release - [ ] Developer Infrastructure - [ ] Client Plugin - [ ] Server Plugin - [ ] Extensions - [ ] Others

gitea-mirror

2026-05-05 14:28:35 -06:00

closed this issue
added the
lifecycle/stale
label

gitea-mirror commented

2026-05-05 14:28:38 -06:00

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Owner

@fatedier commented on GitHub (Aug 7, 2025):

Could you describe your requirements in more detail?

@fatedier commented on GitHub (Aug 7, 2025): Could you describe your requirements in more detail?

gitea-mirror commented

2026-05-05 14:28:39 -06:00

Author

Owner

@akaboydeve commented on GitHub (Aug 7, 2025):

@fatedier , i am running an UDP service lets say Minecraft Bedrock server and i want to protect it with udp reverse proxy but surrent udp dosenot have proxy protocol and i cannot get users real ip in the udp service

so using UDP Simple Proxy Protocol
backend can get users real ip ,
this is like tcp proxy protocol

you can refer to this https://developers.cloudflare.com/spectrum/reference/simple-proxy-protocol-header/

@akaboydeve commented on GitHub (Aug 7, 2025): @fatedier , i am running an UDP service lets say Minecraft Bedrock server and i want to protect it with udp reverse proxy but surrent udp dosenot have proxy protocol and i cannot get users real ip in the udp service so using UDP Simple Proxy Protocol backend can get users real ip , this is like tcp proxy protocol you can refer to this https://developers.cloudflare.com/spectrum/reference/simple-proxy-protocol-header/

gitea-mirror commented

2026-05-05 14:28:40 -06:00

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Owner

@fatedier commented on GitHub (Aug 7, 2025):

https://github.com/fatedier/frp?tab=readme-ov-file#proxy-protocol

@fatedier commented on GitHub (Aug 7, 2025): https://github.com/fatedier/frp?tab=readme-ov-file#proxy-protocol

gitea-mirror commented

2026-05-05 14:28:40 -06:00

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Owner

@akaboydeve commented on GitHub (Aug 7, 2025):

tcp only supports transport.proxyProtocolVersion = "v2"
udp dose not have proxy protocol
that is why i am requesting this feature

@akaboydeve commented on GitHub (Aug 7, 2025): tcp only supports transport.proxyProtocolVersion = "v2" udp dose not have proxy protocol that is why i am requesting this feature

gitea-mirror commented

2026-05-05 14:28:41 -06:00

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Owner

@github-actions[bot] commented on GitHub (Aug 22, 2025):

Issues go stale after 14d of inactivity. Stale issues rot after an additional 3d of inactivity and eventually close.

@github-actions[bot] commented on GitHub (Aug 22, 2025): Issues go stale after 14d of inactivity. Stale issues rot after an additional 3d of inactivity and eventually close.

gitea-mirror referenced this issue

2026-05-05 14:49:57 -06:00

[PR #3875] [MERGED] fix: duplicate call loginFunc (#3860) #4849