'n', HELPCTX(connection_nodelay),
			  dlg_stdcheckbox_handler,
			  I(offsetof(Config,tcp_nodelay)));
	    ctrl_checkbox(s, "Enable TCP keepalives (SO_KEEPALIVE option)",
			  'p', HELPCTX(connection_tcpkeepalive),
			  dlg_stdcheckbox_handler,
			  I(offsetof(Config,tcp_keepalives)));

	    s = ctrl_getset(b, "Connection", "ipversion",
			  "Internet protocol version");
	    ctrl_radiobuttons(s, NULL, NO_SHORTCUT,
#ifndef NO_IPV6
			  3,
#else
			  2,
#endif
			  HELPCTX(connection_ipversion),
			  dlg_stdradiobutton_handler,
			  I(offsetof(Config, addressfamily)),
			  "Auto", NO_SHORTCUT, I(ADDRTYPE_UNSPEC),
			  "IPv4", NO_SHORTCUT, I(ADDRTYPE_IPV4),
#ifndef NO_IPV6
			  "IPv6", NO_SHORTCUT, I(ADDRTYPE_IPV6),
#endif
			  NULL);

	}

	/*
	 * A sub-panel Connection/Data, containing options that
	 * decide on data to send to the server.
	 */
	if (!midsession) {

	pfd->direction = ctrl_radiobuttons(s, NULL, NO_SHORTCUT, 3,
					   HELPCTX(ssh_tunnels_portfwd),
					   portfwd_handler, P(pfd),
					   "Local", 'l', P(NULL),
					   "Remote", 'm', P(NULL),
					   "Dynamic", 'y', P(NULL),
					   NULL);

	pfd->addressfamily =
	    ctrl_radiobuttons(s, NULL, NO_SHORTCUT,
#ifndef NO_IPV6
			      3,
#else
			      2,
#endif
			      HELPCTX(ssh_tunnels_portfwd_ipversion),
			      portfwd_handler, P(pfd),
			      "Auto", NO_SHORTCUT, I(ADDRTYPE_UNSPEC),
			      "IPv4", NO_SHORTCUT, I(ADDRTYPE_IPV4),
#ifndef NO_IPV6
			      "IPv6", NO_SHORTCUT, I(ADDRTYPE_IPV6),
#endif
			      NULL);

	ctrl_tabdelay(s, pfd->addbutton);
	ctrl_columns(s, 1, 100);

	if (!midsession) {
	    /*
	     * The Connection/SSH/Bugs panel.
	     */