PuTTY artifact netscreen-command

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summary: Trouble with netscreen firewalls and remote command
difficulty: taxing: Needs external things we don't have (standards, users etc)
present-in: 0.53b 2003-04-02

Apparently when plink or PuTTY connects to a netscreen firewall with a remote command such as "save", the session hangs after "Started session".

Interactive connections with no command (with both plink and PuTTY) work fine.

Some other clients (e.g. SecureCRT) are fine, but OpenSSH also has trouble: 

bash-2.05a# ssh 256.256.256.256 -l netscreen -v -v -v save
OpenSSH_2.9 FreeBSD localisations 20011202, SSH protocols 1.5/2.0, OpenSSL 0x0090601f
...
netscreen@257.257.257.257's password:
debug3: clear hostkey 0
debug3: clear hostkey 1
debug1: Sending command: save
debug1: Entering interactive session.
Disconnecting: protocol error: rcvd type 15
debug1: Calling cleanup 0x8059d60(0x0)

(These firewalls claim a version string of SSH-1.5-SSH Protocol Compatible Server SCS 2.0. All connections are therefore SSH-1.)

Reports:

We've had one report that this applies to Netscreen 4.x and previous, but that it works fine in newer versions (as well as SSH-2).

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Audit trail for this artifact.
(last revision of this bug record was at 2005-02-16 23:54:10 +0000)