Search results
Results From The WOW.Com Content Network
This address is used by only one physical router at a time, and it will reply with this MAC address when an ARP request is sent for the virtual router's IP address. Physical routers within the virtual router must communicate within themselves using packets with multicast IP address 224.0.0.18 and IP protocol number 112 for IPv4, or ff02::12 and ...
A router is considered a layer-3 device because its primary forwarding decision is based on the information in the layer-3 IP packet, specifically the destination IP address. When a router receives a packet, it searches its routing table to find the best match between the destination IP address of the packet and one of the addresses in the ...
In computer networking, a routing table, or routing information base ( RIB ), is a data table stored in a router or a network host that lists the routes to particular network destinations, and in some cases, metrics (distances) associated with those routes. The routing table contains information about the topology of the network immediately ...
Internet Gateway Device Protocol. Internet Gateway Device ( UPnP IGD) Control Protocol is a protocol based on UPnP for mapping ports in network address translation (NAT) setups, supported by some NAT-enabled routers. It is a common communications protocol for automatically configuring port forwarding, and is part of an ISO / IEC Standard [1] [2 ...
Default route. In computer networking, the default route is a configuration of the Internet Protocol (IP) that establishes a forwarding rule for packets when no specific address of a next-hop host is available from the routing table or other routing mechanisms. The default route is generally the address of another router, which treats the ...
By comparing the client's external IP address to the address seen by an external web server, or sometimes by examining the HTTP headers received by a server. A number of sites have been created to address this issue, by reporting the user's IP address as seen by the site back to the user on a web page.
Free (PC) or hardware version. UTM distribution with routing, firewall, anti-spam and anti-virus for web, FTP and e-mail, OpenVPN, IPsec, captive portal functionality, and captive portal (missing in community version). Endian Firewall Community (EFW) is a complete version for x86. The anti-virus for EFW is Sophos or ClamAV.
In computer networking, the Hot Standby Router Protocol ( HSRP) is a Cisco proprietary redundancy protocol for establishing a fault-tolerant default gateway. Version 1 of the protocol was described in RFC 2281 in 1998. Version 2 of the protocol includes improvements and supports IPv6 but there is no corresponding RFC published for this version.