>
>
> On 12 May 99, at 9:45, David A. Ranch wrote about
> "Re: [Masq] Re: please help with ip":
>
> | >| FTP needs the special FTP module and to have port 20 forwarded as well.
> | >
> | >I thought this too at first, but there is no need to set up port
> | >forwarding for port 20. The FTP masq module sets up masq entries for
> | >data ports as needed.
> |
> | This is specific to your port of IP_MASQ_FTP correct?
>
> I wouldn't say so. Certainly it is a moot point for a masqueraded
> server without my version of ip_masq_ftp.c.
>
> But as I understand it, the same issue applies to a masqueraded
> client in active mode - the data connection is actually opened from
> the outside, so there would seem to be a need for port forwarding.
> But there is not, because the ip_masq_ftp module sets up a masquerade
> entry for the data connection *as if* it had been initiated by an
> outgoing packet. So the *actual* first packet, which is incoming,
> looks to the masquerade code like a reply.
>
Fred, this paragraph seems to answer a question I've been wondering
about. Could you explain to which system this answer applies?
Are you guys talking about a stock 2.2.x system or about a patches
system or about specific kernel modules that you're using but that are
not in wide-spread circulation?
Thanks,
- Godmar
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