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Re: bin/56129 (ftp(1) should keep control session duringlargexfer)

The following reply was made to PR bin/56129; it has been noted by GNATS.

From: =?UTF-8?B?SmFyb23DrXIgRG9sZcSNZWs=?= <>
To: "" <>
Subject: Re: bin/56129 (ftp(1) should keep control session duringlargexfer)
Date: Wed, 23 Jun 2021 22:46:19 +0200

 Le mer. 23 juin 2021 =C3=A0 22:35, RVP <> a =C3=A9crit :
 >  In any case, ftp(1) will have to be modified to either:
 >  a) send periodic keepalive commands during long xfers, or
 >  b) for non-nteractive xfers, re-connect and fetch the rest of the
 >      files in a list. (Most of the code for this is already there;
 >      just needs a bit of re-arrangement.)
 ftp client enables SO_KEEPALIVE, which should be the same as actually
 sending a dummy command every so often.
 I have no idea why it doesn't help. Maybe the keep-alive packets get
 ignored by the router, and it doesn't refresh it's NAT inactivity
 Did anyone confirm via tcpdump whether the keep-alive packets are
 actually sent by the kernel for the control connection?

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