Hi, I got also "derive_ssh1_session_id: bad server modulus (len 48)" when I try to login from my debian to a J6350.
My .ssh directory is empty.. any ideas?
hostname:~# ssh 172.16.1.130 -l usaername -v -1
OpenSSH_5.1p1 Debian-5, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for *
debug1: Connecting to 172.16.1.130 [172.16.1.130] port 22. debug1: Connection established.
debug1: permanently_set_uid: 0/0 debug1: identity file /root/.ssh/identity type -1
debug1: Remote protocol version 1.5, remote software version OpenSSH_4.4
debug1: match: OpenSSH_4.4 pat OpenSSH_4*
debug1: Local version string SSH-1.5-OpenSSH_5.1p1 Debian-5 debug1: Waiting for server public key.
debug1: Received server public key (384 bits) and host key (512 bits).
debug1: Host '172.16.1.130' is known and matches the RSA1 host key.
debug1: Found key in /root/.ssh/known_hosts:15
derive_ssh1_session_id: bad server modulus (len 48)