Connect via Proxy to older Host will break after upgrading to 6.7_p1 was working fine until 6.6_p1-r Reproducible: Always Steps to Reproduce: SSH to Solrais 10U8/U11 via proxy with older sshd SSH to RHEL5/6 via proxy with older sshd SSH to Solaris <10 via proxy with older sshd Actual Results: Received disconnect from UNKNOWN: 2: Packet corrupt Expected Results: Successful connection OpenSSH_6.7p1-hpn14v5, OpenSSL 1.0.1k 8 Jan 2015 debug1: Reading configuration data /home/$(user)/.ssh/config debug1: /home/$(user)/.ssh/config line 146: Applying options for *.$(destination) debug1: /home/$(user)/.ssh/config line 286: Applying options for * debug1: Reading configuration data /etc/ssh/ssh_config debug1: Executing proxy command: exec ssh -W finalhost.$(destination):22 proxy.$(hop) debug1: permanently_drop_suid: 1000 debug1: identity file /home/$(user)/.ssh/id_rsa type 1 debug1: key_load_public: No such file or directory debug1: identity file /home/$(user)/.ssh/id_rsa-cert type -1 debug1: identity file /home/$(user)/.ssh/id_dsa type 2 debug1: key_load_public: No such file or directory debug1: identity file /home/$(user)/.ssh/id_dsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/$(user)/.ssh/id_ecdsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/$(user)/.ssh/id_ecdsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/$(user)/.ssh/id_ed25519 type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/$(user)/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.7p1-hpn14v5 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3p1-hpn13v7 debug1: match: OpenSSH_5.3p1-hpn13v7 pat OpenSSH_5* compat 0x0c000000 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: AUTH STATE IS 0 debug1: REQUESTED ENC.NAME is 'aes128-ctr' debug1: kex: server->client aes128-ctr umac-64@openssh.com none debug1: REQUESTED ENC.NAME is 'aes128-ctr' debug1: kex: client->server aes128-ctr umac-64@openssh.com none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<3072<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA 95:48:8f:4f:b4:d2:a9:57:5d:16:0d:19:84:f1:9e:3e debug1: Host 'finalhost.$(destination)' is known and matches the RSA host key. debug1: Found key in /home/$(user)/.ssh/known_hosts:24 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/$(user)/.ssh/id_rsa debug1: Server accepts key: pkalg ssh-rsa blen 277 debug1: Single to Multithread CTR cipher swap - client request debug1: Authentication succeeded (publickey). Authenticated to finalhost.$(destination) (via proxy). debug1: Final hpn_buffer_size = 2097152 debug1: HPN Disabled: 0, HPN Buffer Size: 2097152 debug1: channel 0: new [client-session] debug1: Enabled Dynamic Window Scaling debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. debug1: need rekeying debug1: SSH2_MSG_KEXINIT sent debug1: rekeying in progress debug1: Requesting authentication agent forwarding. debug1: enqueue packet: 98 debug1: enqueue packet: 98 debug1: Sending environment. debug1: Sending env LANG = en_US.UTF-8 debug1: enqueue packet: 98 debug1: enqueue packet: 98 Received disconnect from UNKNOWN: 2: Packet corrupt
please include `emerge --info` as an attachment in every bug report if you build openssh with USE=-hpn, does it work ?
