Search results
Results from the WOW.Com Content Network
Although the actual Internet traffic mix has changed over time, the standardized IMIX profiles used for testing have not been updated accordingly because the IMIX test results need to be comparable. Mix profiles exist for IPv4 , TCP , VPN ( IPsec ) and IPv6 traffic, distributions are similar but frame sizes vary given the different overhead and ...
The Point-to-Point Tunneling Protocol (PPTP) is an obsolete method for implementing virtual private networks.PPTP has many well known security issues. PPTP uses a TCP control channel and a Generic Routing Encapsulation tunnel to encapsulate PPP packets.
An IP-based routing protocol, EIGRP, OSPF, RIPv2, BGP or ODR (DMVPN hub-and-spoke only). [5] Generic Routing Encapsulation (GRE), RFC 1701, or multipoint GRE if spoke-to-spoke tunnels are desired; IPsec (Internet Protocol Security) using an IPsec profile, which is associated with a virtual tunnel interface in IOS software.
Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).
The original DARPA Internet Protocol's RFC describes [1]: §1.4 TTL as: . The Time to Live is an indication of an upper bound on the lifetime of an internet datagram.It is set by the sender of the datagram and reduced at the points along the route where it is processed.
The TCP segment is then encapsulated into an Internet Protocol (IP) datagram, and exchanged with peers. [14] The term TCP packet appears in both informal and formal usage, whereas in more precise terminology segment refers to the TCP protocol data unit (PDU), datagram [15] to the IP PDU, and frame to the data link layer PDU:
A VPN does not make one's Internet use private. Users can still be tracked through tracking cookies and device fingerprinting, even if the user's IP address is hidden. [15] A VPN can log the user's traffic, although this depends on the VPN provider. [15] A VPN does not make the user immune to cyberattacks. [15]
The value is set to 4 for IP in IP. Not to be mistaken with value 4 in the Version field, which indicates IPv4. Header Checksum: 16 bits This field is the IP checksum of outer header. Source IP Address: 32 bits This field is the IP address of the encapsulator. Destination IP Address: 32 bits This field is the IP address of the decapsulator.