assigning virtual IP
10.20.30.1 to peer 'sweethome'
16[CFG] selected proposal: ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ
16[ESP] IPsec SA: only UDP encapsulation is supported
16[ESP] failed to create SAD entry
16[ESP] IPsec SA: only UDP encapsulation is supported
16[ESP] failed to create SAD entry
16[IKE] unable to install inbound and outbound IPsec SA (SAD) in kernel
16[IKE] failed to establish CHILD_SA, keeping IKE_SA
16[ENC] generating IKE_AUTH response 5 [ AUTH CPRP(ADDR DNS DNS) N(AUTH_LFT) N(NO_PROP) ]