bgp tunnel

CONFIG prefix-listRouter (config) #ip prefix-list list-name seq permit/deny network/len ge/lePrefix-list was originally designed for BGP. The network address part and mask portion of the routing entry can be matchedIP prefix-list NAME Permit 172.16.0.0/22 ge le 24/22: prefix 22bit the sameGe24: Mask range min. 24 bitsLe24: Mask range Max 24 bitsWhen there is no GE, the mask range is the smallest and the prefix is the sameWhen there is GE, there is no

BGP of the Community is a route-tagging method that ensures the continuity of route filtering and selection, and is transitive. Experimental topology:650) this.width=650; "style=" width:750px;height:320px; "title=" 1.png "alt=" Wkiom1r6iu3asudqaadaniujdek733.jpg "src= "Http://s3.51cto.com/wyfs02/M00/54/29/wKiom1R6iU3ASudQAADAniUjDek733.jpg" width= "615" height= "396"/>Lab Requirements:1. Set the 11.0/24 community Property value 100:11 on R1 and pass

MPLS + BGP advanced featuresWill LDP allocate tags for BGP routes? Why? --- Previously we mentioned that LDP assigns tags to IGP and never assigns tags to BGP. the following uses an experiment to illustrate how LDP + BGP works. forwarding method of a pure IP Network: In this topology, R1 and R4 establish an EBGP neighb

first, the basic conceptISATAP (intra-siteautomatic Tunnel addressing Protocol)ISATAP is a very easy to deploy and use IPV6 transition mechanism. In a IPv4 network, we can very easily ISATAP deployment, first of all your PC needs to be v4/v6 dual-stack pc, then, need to have a support ISATAP router, ISATAP router can be anywhere in the network, as long as the PC can ping it (of course, You need to know the IPV4 address of the router). Then, we can dep

[Experimental environment] liehuo.net C3640-IK9O3S-M Version 12.4 (10) liehuo.net [Tutorial Objective] veryhuo.com Uses Full-mesh to resolve BGP routing black hole liehuo.net [Experiment topology] liehuo.net Liehuo.net [Experiment description] lie # fire # Network BGP distribution. R2, R3, and R4 run the OSPF protocol. The objective is to enable 1.1.1.1 BGP neig

Modify Weightrouter BGP 1 nrighbor [Address] weight 10 Modify single access-list 6 Permit 6.6.6.6N Bsp router-map XXX Permit 10 match IP address 6 N Bsp Set weight 20 router-map xxx permit 20router bap 1 neihgbor [address] Router-map xxx In2.local_preference:as Valid within, as within the pass, the default value is 100, compared to other as modified Local_preferenceroute-map XXX Permit 10 set local-preference 110router

1. Is the BGP Route table mentioned in the BGP protocol a BGP table? Which table does BGP actually use to route data packets? Is it a BGP table or an IP Route table? Are there any relationships between the two tables? For example, are some entries in the

Optional delivery-BGP Communities is a marker for routing entries to ensure continuity of routing filtering and selection-BGP routers can community the routing entries when redistribution, sending, and receiving routing updates (ROUTE-MAP)-Depending on the community value, the BGP router can filter incoming or outgoing routing updates or optimize certain routes-B

Technorati Tags: mpls,bgp,ccie, tags, LDPWill LDP assign tags to BGP routes? Why?650) this.width=650; "Style=" background-image:none;border-bottom:0px;border-left:0px;padding-left:0px; padding-right:0px;border-top:0px;border-right:0px;padding-top:0px; "title=" clip_image002 "border=" 0 "alt=" clip_ image002 "src=" http://s3.51cto.com/wyfs02/M02/73/F4/wKiom1YKXeDji6JDAADrM1sEj0Q970.jpg "height=" 178 "/>Befor

BGP/MPLSVPN Concept 1: VRF One of the security measures of BGP/MPLSVPN is routing isolation and information isolation. It is implemented through the VPN route Forwarding (VPNRouting Forwarding: VRF) Table and LSP in MPLS. On a PE router, there are multiple BGP/MPLSVPN concepts 1: VRF tables, which correspond to one or more sub-interfaces on the PE router, used t

* BGP is designed to process a large number of Route entries.Control the bandwidth traffic in a certain transmission direction.1. Controllable attributes:· Local priority:It is valid for outbound traffic.Relatively speaking, it is a priority.· MED multi-exit identification:Injected by external EBGP, It is set by the Administrator outside of AS to affect this.To effectively control the traffic that leaves me.· Weight2. Control through route ingThe rout

Before analyzing the advantages of BGP dual-line data centers, we should first understand the implementation methods of BGP dual-line data centers. Dual-line is a technical concept and can be implemented in many ways. At present, Chinese IDC providers have proposed several dual-line implementation methods, such as "CDN dual-line", "dual-IP dual-line", "Single IP multi-line", and "

is to realize the exchange and learning of routing information. The ability to implement routing BGP typically used in large networks, which can accommodate more routing information; IGP protocol, the amount of storage for routing entries is limited, such as OSPF agreement, which can only accommodate 1W routing; IGP is the internal gateway protocol, as internal implementation of routing information exchange;

First, the experimental topology:Second, the experimental requirements:1, R4, R1, R3, R2 respectively in the BGP process deployment neighbor Send Community attribute command;2, R4 deployment ACL crawl 4.4.4.4 traffic, route-map named PL, call ACL, set community no-advertise, and invoke Route-map pl out in the BGP process;3. Verify: View R1 in 4.4.4.4 Item details Are you carrying: no-advertise, and do not p

If you have more than one Internet connection, you know that simply using the Boundary Gateway Protocol (Border Gateway PROTOCOL,BGP) makes it difficult to get the optimal routing path. At this point, the 7th signaling system without a telecommunications network is subtle (signaling system 7,SS7). As the control surface of the telecommunications network, SS7 can determine the best path before a call is established. There is no such control surface on

In the IGP era, we all know, for example, OSPF, link state protocol, in the routing of the time, than the cost of the link, which link consumption will be more priority, if two of the same link consumption, then do load balancing. In fact, the 2 principles to achieve the OSPF---shortest path first work principle. What if, in BGP, there are multiple routes to achieve the goal, how should the choice be made? Which path is the preferred one? Take a lo

Tunnel Type (1) static point-to-point tunnel: 6 bone A point-to-point tunnel is a dedicated tunnel of a terminal (endpoint. To configure such a tunnel, you need to know: The IPv4 address of your local tunnel terminal must be stat

GREs (Generic Routing protocol encapsulation) were submitted to IETF by Cisco, net-smiths, and other companies on September 10, 1994, marked as rfc1701 and rfc1702. Currently, most network devices support the GRE tunnel protocol.GRE specifies how to use one network protocol to encapsulate another network protocol. The GRE tunnel is defined by the source IP address and destination IP address at both ends. Yo

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topologyObjectives: Plan, design, and implement the Internation travel Agency core network. Plan, design, nad implement the travel Data Providers Netwrok. Allow the networks to communicate via BGP. Verify that all implementations is operational and functional according to the guidelines. BackgroundThe International Travel Agency (ITA) needs both it core network and its travel Data Providers (TDP) network set up. Configre each