[Bug 845] Received disconnect from ???: 2: Corrupted MAC on input.

[bugzilla-daemon at mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=845

           Summary: Received disconnect from ???: 2: Corrupted MAC on input.
           Product: Portable OpenSSH
           Version: 3.8p1
          Platform: UltraSparc
        OS/Version: Solaris
            Status: NEW
          Severity: normal
          Priority: P2
         Component: sshd
        AssignedTo: openssh-bugs at mindrot.org
        ReportedBy: annisd at schneider.com


When copying small files (html pages) to web servers, we occasionally get a 
failure message: 

Received disconnect from xx.xx.xx.xx: 2: Corrupted MAC on input. 
(xx.xx.xx.xx is the IP address of one of the web servers)

We copy 6 files to 2 machines every hour. The failure happens 2 or 3 times a 
day. It's a different file each time, and occurs on either target machine. We 
have this failure using scp, sftp, and streaming tar file through stdin to ssh.

The source machine is AIX 5.1 ML05 using openssh 3.8p1, corporate internal DNS.

The target machines are SunOS 5.8, kernel 108528-18, They are outside our 
firewall, using our ISP's DNS. The source machine is not in the ISP's DNS. It 
is in the /etc/hosts file. X11Forwarding is turned off in sshd_config on the 
target machines.

The firewall's NICs are Sun qfe cards. The network switches are Cisco 6500



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