Date: Sat, 8 Mar 2025 17:15:54 +0100 From: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> To: Dan Langille <dan@langille.org>, net@freebsd.org Subject: Re: Errors over VPN - message authentication code incorrect Message-ID: <9ea41f25-5a89-47e3-8df2-f973d6f9e41d@plan-b.pwste.edu.pl> In-Reply-To: <78e829b4-3f53-4b63-ba0a-fe41b5a36203@app.fastmail.com> References: <78e829b4-3f53-4b63-ba0a-fe41b5a36203@app.fastmail.com>
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W dniu 8.03.2025 o 13:07, Dan Langille pisze: > Hello, > > I am getting errors when transferring data over my VPN. I'm not sure why. I've recently replace the gateway / firewall device. Previously, this VPN was stable and these types of transfers worked without error. > > Here is an example. mydev is behind the firewall. r720-02 is accessed over the VPN > > [12:04 mydev dvl ~/tmp] % time scp -r dvl@r720-02.vpn.unixathome.org:bacula.dump . > bacula.dump 0% 0 0.0KB/s --:-- ETAFssh_ssh_dispatch_run_fatal: Connection to 10.10.0.217 port 22: message authentication code incorrect > scp: Connection closed > scp -r dvl@r720-02:bacula.dump . 0.14s user 0.01s system 21% cpu 0.665 total > > If I try the scp direct, without using the VPN, the copy succeeds. > > Ideas please? Hello Dan, I'm not sure what type of VPN it is, but if it's OpenVPN, you might need to add "tun-mtu 1400" on the server side. Please refer to PR 276838. Cheers -- Marek Zarychta
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