Freeswan sem especificar IP ORIGEM
    O arquivo abaixo mostra como deve ser configurado o ipsec.conf tanto da maquina servidora quanto da máquina cliente para que se conecte na maquina remota sem especificar o ip de origem.
    OBS.: as mudanças estão em negrito. ESTE ARQUIVO ESTÁ IDÊNTICO AO UTILIZADO PARA CONEXÃO COM SENHA RSA, AS ÚNICAS ALTERAÇÕES SÃO AS EM DESTAQUE.
    config setup
    	# THIS SETTING MUST BE CORRECT or almost nothing will work;
    	# %defaultroute is okay for most simple cases.
    
    	#>interfaces=%defaultroute
    
    	# Debug-logging controls:  "none" for (almost) none, "all" for lots.
    	klipsdebug=none
    	plutodebug=none
    	# Use auto= parameters in conn descriptions to control startup actions.
    	plutoload=%search
    	plutostart=%search
    	# Close down old connection when new one using same ID shows up.
    	uniqueids=yes
    
    	# How persistent to be in (re)keying negotiations (0 means very).
    	# Parameters for manual-keying testing (DON'T USE OPERATIONALLY).
    	# Note:  only one test connection at a time can use these parameters!
    	# RSA authentication with keys from DNS.
    
    	# Left security gateway, subnet behind it, next hop toward right.
    	# Right security gateway, subnet behind it, next hop toward left.
    	# To authorize this connection, but not actually start it, at startup,
    	# uncomment this.
    	#auto=add
    conn %default
    	keyingtries=0
    	authby=rsasig
    	leftrsasigkey=%dns
    	rightrsasigkey=%dns
    	compress=yes
    conn gnu-win
    
    	#>left=%defaultroute
    
    	leftrsasigkey=0sAQPX2A0mhwtjnwaCU3apXcMYJ4xKFb4CN/pe7C6gNvMR1ad6Tm7ATz5vrDB06TGQhBVO1Fw9QQS3AKvQ5ahtvQfYdMZZ/Gb25p73V33jxXoS8DxGCRGz4c8SZW8vL9yU5bwtUxnFcQk+3xXBVlIsIV1nLmP2IIro9i57EOejA9JI7Q==
    	right=10.61.10.1
    	rightrsasigkey=0sAQNo4i5PPI6DZqemD/PBSoqoRmVYqt7pkQyRRD39du39j5tVYO78EQ7/0g0Y9zXP2Sc4k/R8knAfyh46kLHZaXbHlL1Nij+S5vptsAZ73A4PMo+RlGM7LxLYF7i/AEugNADi9nBxqbBpBBowkQ1MA+SAOt02FQctlRX4cKCnQJV0tw==
    	auto=start
    
    Feitas essas mudanças, basta restartar o serviço tanto na máquina cliente quanto na máquina servidor.
    
IP
3.237.16.210