--transproxy with --ftp=both can't connect to ftp

[laodc]

Can --transproxy work with --ftp?

/usr/bin/redir -nsp -I ftp21p --ftp=both :21 192.168.1.1:2100
ftp21p[27900]: Failed binding to outbound address: Cannot assign requested address

Without the -p it works as intended.

[troglobit]

Hi, this feature has not been tested by my since I took over the project. There is more information in the manual and the file transproxy.txt, included in the tarball.

[laodc]

Hi, this feature has not been tested by my since I took over the project. There is more information in the manual and the file transproxy.txt, included in the tarball.

Thanks for those links. It clarifies some things.

But it doesn't seem related to the error message. Why is it trying to bind to the outbound address?

[troglobit]

Really no clue, that was part of the original commit 9da9b3c from back in 1999. I've never taken the time to explore or test that part of the code. I've kept it intact though waiting for this day. You're as well equipped as I am to figure it out, and maybe help document it better.

If I'd have to venture a guess, it's either a bug, or it's something I don't understand related to the kernel's transparent proxy feature.

If it's a bug you could try removing the || transproxy part from the if-statement in target_connect()

[laodc]

I'll play around tonight and see what happens.

[troglobit]

@laodc hey, did you ever figure this one out?