scp lost connection problems



Hi--

I searched the archives at http://marc.info/?l=openssh-unix-dev&r=1&w=2 and didn't quite find a match for my problem. So I hope someone can offer suggestions for further diagnosis or a fix ( yeah!).

I am trying to get CVS using SSH functional over my home network but ran into "lost connection" errors with anything but small files. The SSH authentication seems to be okay, but the file transfers failed with:

Read from remote host bettyboop: Software caused connection abort

A little more debugging led me to attempt sending files via scp which ended up failing with the same error. I'm hoping that it's all from the same root cause. The error output from the client side appears below.

The two systems are as follows:

Client -- ABit AN8 32x, Windows 2000 SP4 using Cygwin.
http://www.uabit.com/index.php?option=com_content&task=view&id=32&Itemid=48&page=2&model=310
Server -- MSI K9AG Neo2-Digital, FreeBSD 6.2
http://global.msi.com.tw/index.php?func=proddesc&maincat_no=1&cat2_no=&cat3_no=&prod_no=1241

Thanks in advance!


JBj

------- err.log -------

Executing: program /usr/bin/ssh host bettyboop, user (unspecified), command scp -v -t .
OpenSSH_4.7p1, OpenSSL 0.9.8e 23 Feb 2007
debug2: ssh_connect: needpriv 0
debug1: Connecting to bettyboop [192.168.5.80] port 22.
debug1: Connection established.
debug1: identity file /home/spanky/.ssh/id_rsa type -1
debug3: Not a RSA1 key file /home/spanky/.ssh/id_dsa.
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug3: key_read: missing keytype
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug2: key_type_from_name: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file /home/spanky/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.5p1 FreeBSD-20061110
debug1: match: OpenSSH_4.5p1 FreeBSD-20061110 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.7
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@xxxxxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@xxxxxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@xxxxxxxxxxx,hmac-ripemd160,hmac-ripemd160@xxxxxxxxxxx,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@xxxxxxxxxxx,hmac-ripemd160,hmac-ripemd160@xxxxxxxxxxx,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: zlib@xxxxxxxxxxx,zlib,none
debug2: kex_parse_kexinit: zlib@xxxxxxxxxxx,zlib,none
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@xxxxxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@xxxxxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@xxxxxxxxxxx,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@xxxxxxxxxxx,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@xxxxxxxxxxx
debug2: kex_parse_kexinit: none,zlib@xxxxxxxxxxx
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_setup: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 zlib@xxxxxxxxxxx
debug2: mac_setup: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 zlib@xxxxxxxxxxx
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug2: dh_gen_key: priv key bits set: 115/256
debug2: bits set: 506/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: check_host_in_hostfile: filename /home/spanky/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 1
debug3: check_host_in_hostfile: filename /home/spanky/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 1
debug1: Host 'bettyboop' is known and matches the DSA host key.
debug1: Found key in /home/spanky/.ssh/known_hosts:1
debug2: bits set: 516/1024
debug1: ssh_dss_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/spanky/.ssh/id_rsa (0x0)
debug2: key: /home/spanky/.ssh/id_dsa (0x65a410)
debug1: Authentications that can continue: publickey,keyboard-interactive
debug3: start over, passed a different list publickey,keyboard-interactive
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /home/spanky/.ssh/id_rsa
debug3: no such identity: /home/spanky/.ssh/id_rsa
debug1: Offering public key: /home/spanky/.ssh/id_dsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Server accepts key: pkalg ssh-dss blen 435
debug2: input_userauth_pk_ok: fp 78:1f:24:0f:d5:90:b3:de:2b:a9:a9:58:75:78:04:2f
debug3: sign_and_send_pubkey
debug1: read PEM private key done: type DSA
debug1: Enabling compression at level 6.
debug1: Authentication succeeded (publickey).
debug2: fd 4 setting O_NONBLOCK
debug2: fd 5 setting O_NONBLOCK
debug2: fd 6 setting O_NONBLOCK
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug1: Entering interactive session.
debug2: callback start
debug2: client_session2_setup: id 0
debug1: Sending command: scp -v -t .
debug2: channel 0: request exec confirm 0
debug2: fd 3 setting TCP_NODELAY
debug2: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel 0: rcvd adjust 131072
Sending file modes: C0777 512876 sludge.bsp
debug2: channel 0: rcvd ext data 30
Sink: C0777 512876 sludge.bsp
debug2: channel 0: written 30 to efd 6
debug1: channel 0: free: client-session, nchannels 1
debug3: channel 0: status: The following connections are open:
#0 client-session (t4 r0 i0/24 o0/0 fd 4/5 cfd -1)

debug3: channel 0: close_fds r 4 w 5 e 6 c -1
debug3: fd 0 is not O_NONBLOCK
debug3: fd 1 is not O_NONBLOCK
debug3: fd 2 is not O_NONBLOCK
Read from remote host bettyboop: Software caused connection abort
debug1: Transferred: stdin 0, stdout 0, stderr 66 bytes in 20.7 seconds
debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 3.2
debug1: Exit status -1
debug1: compress outgoing: raw data 131206, compressed 49349, factor 0.38
debug1: compress incoming: raw data 89, compressed 68, factor 0.76
lost connection



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