How do I advertise a default route in EIGRP?
Configure EIGRP in AS 100 on both routers and advertise their directly connected networks. Configure R1 to inject a default route into the EIGRP routing domain. One way to inject a default route into EIGRP is to configure a static default route pointing to Null0 and then redistribute the default route into EIGRP.
What is the default ad for EIGRP?
90
Default Distance Value Table
| Route Source | Default Distance Values |
|---|---|
| External Border Gateway Protocol (BGP) | 20 |
| Internal EIGRP | 90 |
| IGRP | 100 |
| OSPF | 110 |
How do I advertise my network in EIGRP?
The second command, network SUBNET, enables EIGRP on selected interfaces and specifies which networks will be advertised. By default, the network command takes a classful network number as the parameter. The command above lists all EIGRP neighbors. The address field lists the neighboring router RID (router ID).
Does EIGRP Auto summary by default?
By default, EIGRP has the auto summary feature enabled. Because of this, routes are summarized to classful address at network boundaries in the routing updates. Because of the auto summary feature, the router R1 summarizes the network 10.0. 1.0/24 before sending the route to R2.
How do I advertise a default route?
There are two ways to advertise a default route into a normal area. The first is to advertise 0.0. 0.0 into the OSPF domain, provided the advertising router already has a default route. The second is to advertise 0.0.
What is EIGRP metric?
EIGRP updates contain five metrics: minimum bandwidth, delay, load, reliability, and maximum transmission unit (MTU). Of these five metrics, by default, only minimum bandwidth and delay are used to compute best path.
What is ad for EIGRP?
The administrative distance (AD) is a number used to rate the trustworthiness of the routing information received from a neighbor router. It is used when a router must choose between routes learned using different routing protocols. Static route – 1. EIGRP – 90.
What is EIGRP network statement?
In reality, the network statement identifies the interface to enable EIGRP on, and it adds the interface’s connected network to the EIGRP topology table. EIGRP then advertises the topology table to other routers in the EIGRP autonomous system.
What is EIGRP named mode?
The named mode is the new way of configuring EIGRP; this mode allows EIGRP configurations to be entered in a hierarchical manner under the router mode. Each named mode configuration can have multiple address families and autonomous system number combinations.
What is EIGRP Auto-summary?
EIGRP supports automatic summarization which as the name implies means that it will automatically advertise summary routes to other EIGRP routers. EIGRP will check if you have any subnets that fall within the range of your network command(s) and if so, it will advertise the classful A, B or C network to its neighbors.
What is the purpose of no auto-summary?
To advertise and carry subnet routes in BGP, use an explicit network command or the no auto-summary command. If you disable auto-summarization and have not entered a network command, you will not advertise network routes for networks with subnet routes unless they contain a summary route.
How to advertise a default route in EIGRP?
These methods are available in order to advertise default route in EIGRP which are explained in this article: 1. Use default route and redistribution 2. Use Summary address Here routers R1, R2 and R3 are configured with EIGRP and no EIGRP runs in between R3 and R4. ! ! ! ! Method 1. Use Default Route and Redistribution
Why do we use EIGRP for route summarization?
EIGRP automatic & manual summarization. Route summarization is a method of representing multiple networks with a single summary address. It is often use in large networks with many subnets because it reduces the number of routes that a router must maintain and minimizes the traffic used for routing updates.
Which is the default network topology for EIGRP?
This is the topology we will use: R1 and R2 are configured for EIGRP, R2 is connected to an ISP router. Behind the ISP is network 3.3.3.0 /24 that we can use to test our default route. Nothing special, R1 and R2 are neighbors but that’s it. We configure the default route on R2 with FastEthernet 0/1 as the exit interface.
Can you use the network command in EIGRP?
In EIGRP we can use the network 0.0.0.0 command to advertise this. This might sound strange but it works, normally you can only use the network command to advertise networks on interfaces but EIGRP wil make an exception for this default route.