Table of Contents
How do I enable split horizon in EIGRP?
To enable split-horizon for EIGRP, specify the EIGRP as-number . With most interfaces, split horizon is enabled. However, with multipoint interfaces—such as a multipoint Frame Relay interface—split horizon is disabled.
Does EIGRP work with IPv6?
Also, EIGRP is responsible for redistributing routes learned by other IPv4 or IPv6 routing protocols. EIGRP for IPv6 is directly configured on the interfaces over which it runs, which allows EIGRP for IPv6 to be configured without the use of a global IPv6 address.
How do you configure EIGRP for IPv6?
Configure the EIGRP for the IPv6 routing:
- Enable the IPv6 routing on a router.
- Assign the router ID of the each router.
- Enable the EIGRP for IPv6 routing on every router.
- Configure the EIGRP for IPv6 by using the AS 1 on a gigabit Ethernet and serial interfaces on a router.
- Determine a neighbor adjacency.
What is the IPv6 multicast address used by EIGRP?
Multicast addresses in IPv6 use the prefix ff00::/8….Notable IPv6 multicast addresses.
| Address | Description |
|---|---|
| ff02::a | EIGRP routers |
| ff02::d | PIM routers |
| ff02::12 | Virtual Router Redundancy Protocol (VRRP) version 3 |
What is the command for enabling EIGRP for IPv6?
Table 3-6 Commands Used in Example 3-20
| Command(s) | Description |
|---|---|
| ipv6 unicast-routing | Enable IPv6 routing |
| ipv6 router eigrp 1 | Configure EIGRP with AS number 1 |
| no shutdown | Enable the EIGRP process |
| show ipv6 protocol | Verify the EIGRP process has started (more on EIGRP verification/show commands in the next section) |
What commands are used to configure and enable EIGRP for IPv6?
EIGRP for IPv6 Configuration
| 1 | Enter global configuration mode | router#configure terminal |
|---|---|---|
| Repeat steps 1-4 on all EIGRP for IPv6 interfaces | ||
| 5 | Enter EIGRP for IPv6 router configuration modeNote: This is a global configuration mode command | router(config-if)#ipv6 router eigrp autonomous-system-number |
What is the default hold interval for EIGRP?
EIGRP uses a default Hello timer of 5 seconds and a default Hold timer of 15 on LAN interfaces.
What is the IPv6 address ff02 :: 2 used for?
Well-known IPv6 multicast addresses
| ff02::1 | all nodes |
|---|---|
| ff02::1a | all RPL (Routing Protocol for Low-Power and Lossy Networks) routers (used in Internet of Things (IoT) devices) |
| ff02::fb | multicast DNS IPv6 |
| ff02::101 | network time (NTP) |
| ff02::1:2 | all DHCP agents |
Which IPv6 multicast address space below is for all EIGRP routers?
ff02::5: All OSPFv3 routers. ff02::a: All EIGRP (IPv6) routers.
Which address will EIGRP for IPv6 use as the router ID?
Which address will EIGRP for IPv6 use as the router ID? EIGRP for IPv6 uses the same router ID as EIGRP for IPv4 uses. The 32-bit number can be configured with the router-id command or automatically assigned from the highest IPv4 address on an enabled interface. Refer to the exhibit.
What are default metrics used in EIGRP route determination?
EIGRP determines the value of the path using five metrics: bandwidth, load, delay, reliability and MTU. EIGRP uses Five different messages to communicate with its neighbor routers. EIGRP messages are Hello, Update, Query, Reply, and Acknowledgement.
How EIGRP choose the best path?
By default EIGRP uses bandwidth and delay of the line to determine the best path to a remote network. However, if desired, EIGRP can use a composite of four metrics: bandwidth, delay, reliability, and load.
How do I disable split-horizon for an EIGRP process?
To disable split horizon for an Enhanced Interior Gateway Routing Protocol (EIGRP) process, use the split-horizon disable command in interface configuration mode. To enable split horizon, use the no form of this command. This command has no keywords or arguments. Split horizon is enabled for an EIGRP process.
What is the use of Split horizon for Rip?
This is also very useful in DMVPN deployments where you don’t have a full EIGRP mesh. Chris, to be more specific, Split Horizon is disabled by default for RIP on interfaces with Frame Relay or SMDS encapsulation, but not for EIGRP, not for subinterfaces, and not for other encapsulation types.
How do I disable EIGRP routing for an interface?
To define the interfaces on which the Enhanced Interior Gateway Routing Protocol (EIGRP) routing protocol runs, use the interface command in the appropriate configuration mode. To disable EIGRP routing for interfaces, use the no form of this command.
How do I enable/disable IPv4/IPv6 address families under EIGRP?
To enable an IPv4 or IPv6 address family under Enhanced Interior Gateway Routing Protocol (EIGRP), use the address-family command in the appropriate mode. To remove the address family from the EIGRP configuration, use the no form of this command. Selects IPv4 address family. Selects IPv6 address family. No default behavior or values Release