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Topic: Interior Gateway Protocol

	The router object
		BGP The routers are using the exterior gateway protocol, BGP conforming to [8].
		IBGP The routers are using the exterior gateway protocol, BGP as an interior routing protocol conforming to [8].
		IGP This is an interior peering using a standard interior gateway protocol (i.e.
	www.ripe.net /ripe/maillists/archives/rr-impl/1994/msg00222.html (1478 words)

	[No title]
		Consider the situation of a host or gateway G that is connected to network A. C represents the cost of using network A (usually a metric of one).
		Gateways one hop away from the original neighbors would end up with metrics of at least 17; gateways two hops away would end up with at least 18, etc. As these metrics are larger than the maximum metric value, they are all set to 16.
		If the gateway for the route is on the network for which the datagram is being prepared, the metric in the entry is set to 16, or the entire entry is omitted.
	www.ietf.org /rfc/rfc1058.txt (12725 words)

	Kids.Net.Au - Encyclopedia > Interior gateway protocol (Site not responding. Last check: 2007-10-19)
		Routing protocols are used to exchange routing information between networks, allowing routing tables to be built dynamically.
		Ad hoc network routing protocols are used for networks with no or little infrastructure.
		Interior Gateway Protocols (IGPs) are used to exchange routing information within a single autonomous system.
	www.kids.net.au /encyclopedia-wiki/in/Interior_gateway_protocol (491 words)

	Interior gateway protocol - Wikipedia, the free encyclopedia
		A set of routing protocols that are used within an autonomous system are referred to as interior gateway protocols (IGP).
		In contrast an exterior gateway protocol are for determining network reachability between autonomous system (AS) and make use of IGPs to resolve route within an AS.
		In a link-state protocol, the only information passed between the nodes is information used to construct the connectivity maps.
	en.wikipedia.org /wiki/Interior_gateway_protocol (288 words)

	NationMaster - Encyclopedia: Border Gateway Protocol (Site not responding. Last check: 2007-10-19)
		A path vector protocol is a computer network routing protocol in which it maintains the path that update information takes as it diffuses through the network.
		The Exterior Gateway Protocol (EGP) is a routing protocol for the Internet originally specified in 1982 by Eric C. Rosen of Bolt, Beranek and Newman, and David L. Mills.
		RFC 4271, A Border Gateway Protocol 4 (BGP-4) (obsoletes: RFC 1771)
	www.nationmaster.com /encyclopedia/Border-Gateway-Protocol (4426 words)

	S 2.276 Functional description of a router - Grundschutz Manual 2004
		IGP is used within networks that are under a single administrative authority.
		The Border Gateway Protocol is an Exterior Gateway Protocol.
		As routing protocols automate the administration of routing tables, attackers have long been aware of the fact that, by exploiting security vulnerabilities in these protocols, they can modify the routing tables so as to divert data packets or render entire networks inoperable (see T 5.51 Abuse of Routing Protocols).
	www.bsi.de /english/gshb/manual/s/s02276.htm (1253 words)

	Cisco IGRP: Interior Gateway Routing Protocol
		The Interior Gateway Routing Protocol (IGRP) is a routing protocol to provide routing within an autonomous system (AS).
		IGRP is a distance vector Interior Gateway Protocol (IGP).
		Distance vector routing protocols are often contrasted with link-state routing protocols, which send local connection information to all nodes in the internetwork.
	www.javvin.com /protocolIGRP.html (375 words)

	[No title]
		A routing protocol may work well within a range of topologies and number of networks and routers, but may fail when an unforeseen limit is reached.
		In the case of an Interior Gateway Protocol (IGP), both interior and Hinden [Page 2] RFC 1264 Routing Protocol Criteria October 1991 exterior routes must be carried (unless another mechanism is provided for the exterior routes).
		In the case of an Interior Gateway Protocol (IGP), both interior and exterior routes must be carried (unless another mechanism is provided for the exterior routes).
	www.isi.edu /in-notes/rfc1264.txt (2194 words)

	IGRP - Interior Gateway Routing Protocol
		IGP developed by Cisco to address the issues associated with routing in large, heterogeneous networks.
		Protocol developed by Cisco to address the issues associated with routing in large, heterogeneous networks.
		Protocol developed to address problems associated with routing in large, heterogeneous networks.
	www.auditmypc.com /acronym/IGRP.asp (139 words)

	RFC 1164 (rfc1164) - Application of the Border Gateway Protocol in the Int
		Implementers are encouraged to track the progress of this or any protocol as it moves through the standardization process, and to report their own experience with the protocol.
		Introduction The Border Gateway Protocol (BGP), described in RFC 1163, is an interdomain routing protocol.
		In order to minimize such routing problems, border gateway (A) should not advertise a route to some exterior network X to all of its BGP neighbors in other ASs until all of the interior gateways within the AS are ready to route traffic destined to X via the correct exit border gateway (B).
	www.faqs.org /rfcs/rfc1164.html (6714 words)

	Choosing an Interior Gateway Protocol \| Page 1 \| October 18, 1999
		When you enable routing protocols, and their corresponding processes, you unleash a powerful, dynamic force that automates the population of routing tables on your network.
		The first rule of thumb is to implement IGPs only where a single administrator has responsibility for the operation and performance of the network--otherwise, you can expect serious problems such as configuration errors bringing down the network or causing stability problems.
		RIP is classified as a distance vector protocol, which means it uses distance, as measured in routing hops, to determine a packet's optimal path.
	www.networkcomputing.com /1021/1021ws2.html (858 words)

	[No title]
		If an IGP is used to carry BGP information, then the period of desynchronization described earlier does not occur at all, since BGP information propagates within the AS synchronously with the IGP, and the IGP converges more or less simultaneously with the arrival of the new routing information.
		The address of the exit gateway A for some exterior network X is specified in the BGP identifier field of the BGP OPEN message received from gateway A via Internal BGP by all other border gateways within the same AS.
		If the convergence time of an IGP is less than some small value X, then the time window during which the IGP and BGP are unsynchronized is less than X as well, and the whole issue can be ignored at the cost of transient periods (of less than length X) of routing instability.
	www.ietf.org /rfc/rfc1655.txt (5458 words)

	Internetworking Technology Handbook - Interior Gateway Routing Protocol (IGRP) [Internetworking] - Cisco Systems
		The Interior Gateway Routing Protocol (IGRP) is a routing protocol that was developed in the mid-1980s by Cisco Systems, Inc. Cisco's principal goal in creating IGRP was to provide a robust protocol for routing within an autonomous system (AS).
		Routers using a distance vector protocol must send all or a portion of their routing table in a routing-update message at regular intervals to each of their neighboring routers.
		Distance vector routing protocols are often contrasted with link-state routing protocols, which send local connection information to all nodes in the internetwork.
	www.ciscosystems.com /en/US/tech/tk1330/tsd_technology_support_technical_reference_chapter09186a008075997e.html (1722 words)

	Interior Gateway Routing Protocol - Biocrawler (Site not responding. Last check: 2007-10-19)
		Interior Gateway Routing Protocol (IGRP) is a proprietary distance-vector routing protocol invented by Cisco, used by routers to exchange routing data within an autonomous system.
		IGRP was created in part to overcome the limitations of RIP (maximum hop count, and a single routing metric) when used within large networks.
		Its successor is EIGRP, an advanced distance-vector routing protocol, that uses many features of link-state protocols, and adds Diffusing Update Algorithm (DUAL) ideas to the basic distance-vector mechanism of IGRP.
	www.biocrawler.com /encyclopedia/IGRP (225 words)

	[No title]
		This ANSI IS-IS protocol is used as the interior gateway protocol (IGP) of the NSFNET backbone.
		The routing protocol which is used for the inter-NSS routing within the NSFNET backbone is an adaptation of the ANSI IS-IS routing protocol [1].
		The routing protocol which is used between the backbone and the attached mid-level networks is the Exterior Gateway Protocol (EGP) [3].
	www.isi.edu /in-notes/rfc1074.txt (1450 words)

	RFC 1771 (rfc1771) - A Border Gateway Protocol 4 (BGP-4)
		The use of the term Autonomous System here stresses the fact that, even when multiple IGPs and metrics are used, the administration of an AS appears to other ASs to have a single coherent interior routing plan and presents a consistent picture of what destinations are reachable through it.
		If the transport protocol connect fails (e.g., retransmission timeout), the local system restarts the ConnectRetry timer, continues to listen for a connection that may be initiated by the remote BGP peer, and changes its state to Active state.
		If a disconnect notification is received from the underlying transport protocol, the local system closes the BGP connection, restarts the ConnectRetry timer, while continue listening for connection that may be initiated by the remote BGP peer, and goes into the Active state.
	www.faqs.org /rfcs/rfc1771.html (14146 words)

	Interior Training - Learn interiors study Interioring training classes Interior courses (Site not responding. Last check: 2007-10-19)
		This course examines Open Shortest Path First (OSPF) which is one of the most commonly used interior gateway protocols in IP networking.
		This module addresses the routing process types of routing classification specific IP routing protocols variable length subnet masks and route summarization (aggregation).
		The TCP/IP Protocols and Network Management WBT is the second course in the TCP/IP curriculum.
	www.training-classes.com /course_hierarchy/keyword_index/interior.html (1439 words)

	Interior Gateway Protocol (Site not responding. Last check: 2007-10-19)
		There are a number of different IGPs in use; in the TCP/IP the IGP is the IP Routing Information Protocol (RIP).
		RIP is a distributed routing protocol, that is based on a technique known as the Distance Vector Algorithm (DVA).
		In this technique the concept of Distance is used as the routing metric between two interior gateways.
	www.eeng.dcu.ie /~murphyj/tc2/dc2000/sld379.htm (70 words)

	IGRP (Interior Gateway Routing Protocol) (Linktionary term)
		IGRP is a Cisco interior routing protocol based on distance-vector routing.
		An interior routing protocol is meant to be used inside an autonomous system (an organization's private network) while an exterior routing protocol operated between autonomous systems.
		While link-state protocols are superior, distance-vector protocols are appropriate for small internetworks, and require much less configuration and management.
	www.linktionary.com /i/igrp.html (846 words)

	S 5.112 Security aspects of routing protocols - IT Grundschutz Manual 2004
		Ideally, only routing protocols that support the secure authentication of routers during the exchange of routing tables should be used.
		In the various routing protocols, a distinction is made between plaintext authentication and encrypted authentication.
		If the keys are changed using the SNMP protocol, it should be noted that in this case the key is sent in plaintext over the network.
	www.bsi.de /english/gshb/manual/s/s05112.htm (493 words)

	Definitions
		There are protocols between each of several functional layers and each corresponding layer at the other end of a communication.
		Protocols are often described in an industry or international standard.
		Border Gateway Protocol, the prevailing exterior (interdomain) gateway protocol.
	www.clarkson.edu /projects/itl/HOWTOS/bgpAnalysis/definitions.htm (3048 words)

	Glossary
		A set of routers under a single technical administration, using an interior gateway protocol and common metrics to determine how to route packets within the AS, and using an exterior gateway protocol to determine how to route packets to other ASs.
		IGPs may have faster convergence than BGP, but simply will not scale to support the number of inter-domain routes that are needed for routing between ASs.
		A protocol used to communicate network reachability and routing information between autonomous systems.
	www.riverstonenet.com /support/bgp/glossary (688 words)

	[No title]
		The use of the term Autonomous System here stresses the fact that, even when multiple IGPs and metrics are used, the administration of an AS appears to other ASes to have a single coherent interior routing plan and presents a consistent picture of what networks are reachable through it.
		If already running an exterior routing protocol, it is perfectly reasonable to use your AS number as an IGP tag; if you do not, choosing from the private use range is also acceptable (see "Reserved AS Numbers").
		Merely running an IGP is not grounds for registration of an AS number.
	www.arin.net /reference/rfc/rfc1930.txt (2734 words)

	Catalyst 4840G Software Feature and Configuration Guide, Software Release 12.0(13)WT6(1) - Configuring Networking ... (Site not responding. Last check: 2007-10-19)
		Interior Gateway Routing Protocol (IGRP) is a distance vector interior-gateway routing protocol.
		Distance vector routing protocols call for each other to send all or a portion of its routing table in a routing update message at regular intervals to each of its neighboring routers.
		Enhanced Interior Gateway Routing Protocol (EIGRP) is an enhanced version of IGRP that combines the advantages of link-state protocols with distance vector protocols.
	www.cisco.com /en/US/products/hw/switches/ps672/products_configuration_guide_chapter09186a008007f248.html (1032 words)

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