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Bug#612433: IPv4-specific port option



Package: openssh-client
Version: 1:5.6p1-2
Severity: wishlist
Tags: ipv6

While IPv6 is not pervasive and IPv4 addresses growing sparse, port
forwarding will likely see increased usage. Hence, I expect many
more ssh_config stanzas like

  Host myhost
    Port 22016
    Hostname …

to facilitate accessing these hosts behind NATting gateways.

Unfortunately, this also affects IPv6 connections, even though IPv6
can (and usually does) restore p2p-connectivity.

It would thus be nice if there were an option e.g. Port4 which only
changed the port for IPv4 connections; if the connection happens
through IPv6, the port is left unchanged.

The corresponding Port6 option is probably not needed, though.

-- System Information:
Debian Release: 6.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.36-trunk-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_NZ, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages openssh-client depends on:
ii  adduser              3.112+nmu2          add and remove users and groups
ii  debconf [debconf-2.0 1.5.38              Debian configuration management sy
ii  dpkg                 1.15.8.10           Debian package management system
ii  libc6                2.11.2-11           Embedded GNU C Library: Shared lib
ii  libedit2             2.11-20080614-2     BSD editline and history libraries
ii  libgssapi-krb5-2     1.8.3+dfsg-4        MIT Kerberos runtime libraries - k
ii  libssl0.9.8          0.9.8o-4            SSL shared libraries
ii  passwd               1:4.1.4.2+svn3283-2 change and administer password and
ii  zlib1g               1:1.2.3.4.dfsg-3    compression library - runtime

Versions of packages openssh-client recommends:
ii  openssh-blacklist             0.4.1      list of default blacklisted OpenSS
pn  openssh-blacklist-extra       <none>     (no description available)
ii  xauth                         1:1.0.5-1  X authentication utility

Versions of packages openssh-client suggests:
ii  gtk-led-askpass [ssh-askpass] 0.11-1     GTK+ password dialog suitable for 
pn  keychain                      <none>     (no description available)
pn  libpam-ssh                    <none>     (no description available)

-- Configuration Files:
/etc/ssh/ssh_config changed [not included]

-- no debconf information


-- 
 .''`.   martin f. krafft <madduck@d.o>      Related projects:
: :'  :  proud Debian developer               http://debiansystem.info
`. `'`   http://people.debian.org/~madduck    http://vcs-pkg.org
  `-  Debian - when you have better things to do than fixing systems

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