Version 4.1.4¶

• The pluto IKEv1 daemon now exhibits the same behaviour as its
  IKEv2 companion charon by inserting an explicit route via the
  _updown script only if a sourceip exists. This is admissible
  since routing through the IPsec tunnel is handled automatically
  by NETKEY's IPsec policies. As a consequence the left|rightnexthop
  parameter is not required any more.

• The new IKEv1 parameter right|leftallowany parameters helps to handle
  the case where both peers possess dynamic IP addresses that are
  usually resolved using DynDNS or a similar service.

  The configuration

  right=peer.foo.bar
     rightallowany=yes

  can be used by the initiator to start up a connection to a peer
  by resolving peer.foo.bar into the currently allocated IP address.
  Thanks to the rightallowany flag the connection behaves later on
  as

  right=%any

  so that the peer can rekey the connection as an initiator when his
  IP address changes. An alternative notation is

  right=%peer.foo.bar

  which will implicitly set rightallowany=yes.

• ipsec starter now fails more gracefully in the presence of parsing
  errors. Flawed ca and conn section are discarded and pluto is started
  if non-fatal errors only were encountered. If right=%peer.foo.bar
  cannot be resolved by DNS then right=%any will be used so that passive
  connections as a responder are still possible.

• The new pkcs11initargs parameter that can be placed in the
  setup config section of /etc/ipsec.conf allows the definition
  of an argument string that is used with the PKCS#11 C_Initialize()
  function. This non-standard feature is required by the NSS softoken
  library. This patch was contributed by Robert Varga.

• Fixed a bug in ipsec starter introduced by strongswan-2.8.5
  which caused a segmentation fault in the presence of unknown
  or misspelt keywords in ipsec.conf. This bug fix was contributed
  by Robert Varga.

• Partial support for MOBIKE in IKEv2. The initiator acts on interface/
  address configuration changes and updates IKE and IPsec SAs dynamically.