Both IPv4 and IPv6 multicast addresses are similar in function. A multicast address is used to send a single packet to one or more destinations. Prefix FF00::/8 is reserved for multicast IPv6 addresses. Multicast addresses can only be destination addresses. There are two types of IPv6 multicast addresses: Assigned multicast Solicited-node multicast Assigned Multicast Assigned […]
Device Interface IPv6 Address Prefix Length Default Gateway Router0 G0/0 2001:0DB8:C21A:1:: 64 N/A G0/0 FE80::1 Link-Local S0/0/0 2001:0DB8:C21A:2:: 64 N/A S0/0/0 Dynamic Link-Local Link-Local Router1 G0/0 2001:0DB8:C21A:3:: 64 N/A G0/0 FE80::1 Link-Local S0/0/0 2001:0DB8:C21A:2::1 64 N/A S/0/0/0 Dynamic Link-Local Link-Local Laptop0 NIC 2001:0DB8:C21A:1::2 64 FE80::1 Laptop1 NIC 2001:0DB8:C21A:1::3 64 FE80::1 […]
When SLAAC or SLAAC with stateless RA message is received to a client, the client is required to generate its own Interface ID. The client gets the prefix portion of the IPv6 address from the RA message but the RA message not held the information about the interface ID for the client. There for the […]
The RA message option 1, SLAAC is the default option for the router. The router interface can be configured for three options: SLAAC – Which says I’m all you need (Prefix, Prefix-length, Default Gateway)” SLAAC and DHCPv6 stateless–My information are here but you also need to get other information like DNS addresses from a DHCPv6 […]
Static Configuration – Router Most of the configuration commands in the Cisco routers are similar for both IPv4 and IPv6. The only difference is the use of ipv6 in place of IP within the commands. The command to configure an IPv6 global unicast address on any interface is “ipv6 address ipv6-address/prefix-length “ Example Configuration on Router fa0/0 and fa0/1 interfaces […]
Currently, Internet Assigned Numbers Authority (IANA) and The Internet Committee for Assigned Names and Numbers (ICANN) allocates IPv6 address blocks to the five RIRs. Only global unicast addresses with the first three bits of 001 or 2000::/3 are being assigned to various Internet address registries. This is only very small portion of available IPv6 addresses. A […]
We already learn about IPv4 unicast addresses. A unicast address is the most common form of an IP address and is assigned to one network interface. An IPv6 unicast address uniquely identifies an interface on an IPv6-enabled device. This address used for one to one communication in a network. A packet sent to a unicast […]
The Cisco Certified Network Associate – Routing and Switching (CCNA – Routing and Switching ) certification title has become the leading entry level network certification. The Cisco Certified Network Associate (Routing and Switching) certification was developed by Cisco to test the knowledge of candidate at networking at entry level. The CCNA – Routing and Switching certification analyzes the candidate’s ability to install, configure, operate, and troubleshoot medium-size networks.
The exam is scheduled for 120 minutes and has 50-60 questions on it. The people whose language is not English can get additional 30 mints.
During the exam, no outside reference materials are allowed for candidates. The following topics are general guidelines for the content. In order to improve reflect the contents of the exam and for clarity purposes, the below guidelines may change at any time without notice.
- Operation of IP Data Networks
- LAN Switching Technologies
- IP addressing (IPv4/IPv6)
- IP Routing Technologies
- IP Services
- Network Device Security
- WAN Technologies
CCNA Routing and Switching certification have many advantages to the employee and employer. These include future-proofing and greater utilization of network capabilities resulting in increased employee productivity and an improved ROI on network investments. The employees get training on the newest hardware and software. So when the employers get a chance to upgrade their hardware and software, their employees will have the tools and skills to hit the ground running when new projects begin.
The CCNA Routing and Switching certification is valid for three years at such time, you will need to recertify.