The LD50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5-1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children.
IPSec is a suite of protocols that provide security services at IP layer of TCP/IP stack i.e. Network Layer in OSI model. As Andy Lemke mentioned, IPSec suite comprises of two protocols to offer security to. 1. AH - Authentication Header Protocol.(Protocol no: 51) 2. ESP - Encapsulation of security payload Protocol.
âPhase 1â â Before IPsec can even begin to send your data, there is a negotiation and the establishment of an agreed upon method to create and secure this connection. The negotiation is performed by Internet Key Exchange (IKE) , which consists of (I think) 3 different Key Management protocols. ISAKMP, Oakley, SKEME.