openssh unix dev - Jun 2001 - how to specify cipher for ssh client ?

Hello,

I have:
SSH-1.5-OpenSSH_2.3.1p1

I find that this client displays error when I specify (from command line),
'-c' [cipher] for SSH1.  {for SSH2 looks okay}.
Thus, if I specify:
./ssh -v -l user -c des -1 host
or
./ssh -v -l user -c 3des -1 host

I get error:
bad cipher des [des]
or
error: bad cipher 3des [3des] 

respectively.... and client immediately exits !


But, this is okay:
./ssh -v -l user -c 3des-cbc -2 host


looks fine.

Any suggestions ?

Thank 
you,

Sunil.

On Fri, Jun 08, 2001 at 11:19:13AM -0700, Sunil K. Vallamkonda
wrote:
> I have:
> SSH-1.5-OpenSSH_2.3.1p1
upgrade your software.