from 1 through 3
SIPR Or SIPRNet stands for Secret (or Secure) Internet Protocol Router Network. It refers to a Wide Area Network Utilized by the Dept. Of Defense for Classified data transfer between known trusted entities NIPR or NIPRnet: Unclassified but Sensitive Internet Protocol Router Network Non-Secure Internet Protocol Router Network Non-Classified Internet Protocol Router Network
VOIP= Voice Over Internet Protocol
It is one of the core protocols of the Internet Protocol Suite. It is used by the operating systems of networked computers to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached.
Computer-Router-Internet with a phone Internet like Talk-It, it's Computer and Phone-DNS-Router-Internet
This is a standard wireless router connection protocol. You would have to reset the router's default settings.
I haven't seen a router with infrared port, even if you have one you will not able to use internet because the protocol which is being used by infrared does not support internet calls.
destination network address
IP - internet protocolPPPoE - point-to-point protocol over ethernetVPN - virtual private network
No, ICMP is not a routing protocol. ICMP (Internet Control Message Protocol) is used by the Internet Protocol suite (IP) to send error and status messages. It is mainly used for diagnostics. Ping and traceroute are two tools that use ICMP. ICPM is used by routing protocols, for routing advertisements and router discovery.
By default DNS is enabled on a router with a server address of 255.255.255.255,which provides for a local broadcast
If the network uses the RIP protocol, router A will determine that all paths have equal cost. If the network uses the RIP protocol, router A will update only the A-C-E path in its routing table. If the network uses the EIGRP routing protocol, router A will determine that path A-D-E has the lowest cost. If both RIP and EIGRP protocols are configured on router A, the router will use the route information that is learned by the RIP routing protocol.
router#config t router(config)#router eigrp 100 #net NETWORK ADDRESS