[lug] ssh Bad packet length?

[Anders Knudsen]

Calling all SSH gurus...

Am having some SSH problems. When I SSH to my machine at home, I am
getting "bad packet length" drops, after some time. The disconnect never
happens immediately, but is not at a consistent time either.
I am using openssh-3.1p1-3 on the client side, and
openssh-server-3.1p1-3 on the server (home machine) side (Redhat both
sides.)
Appended is output from a session using ssh -v.

Anyone have any insight to this? Or is it a known problem? I've hunted
around for answers, but have not found anything yet. Also I've tried
forcing protocol 2, and tried dsa and rsa keys, but still the problem
exists. Also, the number reported after the "Bad packet length" message
is never the same.
I am alone? :)

TIA,
-Anders.

[anders at anders anders]$ ssh -v home
OpenSSH_3.1p1, SSH protocols 1.5/2.0, OpenSSL 0x0090602f
debug1: Reading configuration data /home/anders/.ssh/config
debug1: Applying options for home
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Rhosts Authentication disabled, originating port will not be
trusted.
debug1: restore_uid
debug1: ssh_connect: getuid 1000 geteuid 0 anon 1
debug1: Connecting to xxx.yyy.zzz.107 [xxx.yyy.zzz.107] port 22.
debug1: temporarily_use_uid: 1000/1000 (e=0)
debug1: restore_uid
debug1: temporarily_use_uid: 1000/1000 (e=0)
debug1: restore_uid
debug1: Connection established.
debug1: read PEM private key done: type DSA
debug1: read PEM private key done: type RSA
debug1: identity file /home/anders/.ssh/id_rsa type 1
debug1: identity file /home/anders/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version
OpenSSH_3.1p1
debug1: match: OpenSSH_3.1p1 pat OpenSSH*
Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.1p1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: dh_gen_key: priv key bits set: 128/256
debug1: bits set: 1523/3191
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'xxx.yyy.zzz.107' is known and matches the RSA host key.
debug1: Found key in /home/anders/.ssh/known_hosts2:2
debug1: bits set: 1552/3191
debug1: ssh_rsa_verify: signature correct
debug1: kex_derive_keys
debug1: newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: waiting for SSH2_MSG_NEWKEYS
debug1: newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: done: ssh_kex2.
debug1: send SSH2_MSG_SERVICE_REQUEST
debug1: service_accept: ssh-userauth
debug1: got SSH2_MSG_SERVICE_ACCEPT
debug1: authentications that can continue:
publickey,keyboard-interactive
debug1: next auth method to try is publickey
debug1: try pubkey: /home/anders/.ssh/id_rsa
debug1: input_userauth_pk_ok: pkalg ssh-rsa blen 277 lastkey 0x8090528
hint 0
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Enter passphrase for key '/home/anders/.ssh/id_rsa': 
debug1: read PEM private key done: type RSA
debug1: ssh-userauth2 successful: method publickey
debug1: Connections to local port 5905 forwarded to remote address
miraculix:5905
socket: Address family not supported by protocol
debug1: Local forwarding listening on 127.0.0.1 port 5905.
debug1: fd 4 setting O_NONBLOCK
debug1: channel 0: new [port listener]
debug1: fd 6 setting O_NONBLOCK
debug1: channel 1: new [client-session]
debug1: send channel open 1
debug1: Entering interactive session.
debug1: ssh_session2_setup: id 1
debug1: channel request 1: pty-req
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: channel request 1: x11-req
debug1: channel request 1: shell
debug1: fd 3 setting TCP_NODELAY
debug1: channel 1: open confirm rwindow 0 rmax 32768
Last login: Tue Jun 18 15:55:35 2002 from xxx.yyy.zzz.176
[anders at miraculix anders]$ debug1: Connection to port 5905 forwarding to
miraculix port 5905 requested.
debug1: fd 8 setting TCP_NODELAY
debug1: fd 8 setting O_NONBLOCK
debug1: channel 2: new [direct-tcpip]
debug1: channel 2: open confirm rwindow 131072 rmax 32768
3ad3 7973 72b3 39a2 80c0 ba46 869e d118

Disconnecting: Bad packet length 986937715.
debug1: Calling cleanup 0x8051860(0x0)
debug1: Calling cleanup 0x8058450(0x0)
debug1: channel_free: channel 0: port listener, nchannels 3
debug1: channel_free: channel 1: client-session, nchannels 2
debug1: channel_free: channel 2: direct-tcpip: listening port 5905 for
miraculix    port 5905, connect from 127.0.0.1 port 45908, nchannels 1
debug1: Calling cleanup 0x8063550(0x0)
[anders at anders anders]$