rofl0r / rofl0r/proxychains-ng

can't connect to an ipv6 though a proxy ipv4

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Dominant language
C
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Description

Test with only 1 proxy ipv4

my profixied app does connect to various servers which i don't know and can't change

all connects to an ipv4 are ok, but all connect to ipv6 fail

[proxychains] Strict chain ... 185.xxx.yyy.zzz:7492 ... 128.xxx.yyy.zzz:50002 ... OK
[proxychains] Strict chain ... 185.xxx.yyy.zzz:7492 ... xyz.com:50002 ... OK
[proxychains] Strict chain ... 185.xxx.yyy.zzz:7492 ... 2a03:zzzz:2:f0::c4:b001:50002 <--socket error or timeout!
[proxychains] Strict chain ... 185.xxx.yyy.zzz:7492 ... 2600:zzzz:4030:a25e:::50002 <--socket error or timeout!

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the reported failure with one IPv4 proxy and the IPv6 destinations shown in the issue, comparing it with the successful IPv4 connections. Inspect the proxychains-ng socket and connection handling; done means IPv6 connections through the IPv4 proxy succeed without socket errors or timeouts.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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