Answer / jitendera kumar sinha

RIPng
Routing Information Protocol, Next Generation (RIPng) is a
version of the distance-vector routing protocol (RIP)
modified for use with IPv6 (Internet Protocol Version 6).
RIPng allows HP-UX servers to route IPv6 packets within a
medium-sized autonomous system (AS).

The following lists the characteristics of the RIPng
protocol:

Runs over User Datagram Protocol (UDP).

Uses the standard port number 521. Routers that use RIPng
listen on the multicast address FF02::9 and send their
update messages to this address.

Uses distance-vector algorithms to determine an optimal
route to a destination, using hop count (number of routers
between a source and destination network node) as the
metric (a measure for calculating the next host for routing
a packet). It selects the route with the least metric value
as the most preferred route to transmit packets. The metric
field contains a value between 1 and 15 as the current
metric, or hop count, for the destination. The value 16
indicates that the destination is not reachable, therefore,
it is not considered for routing. ramD does not consider
the route with metric value 16 as an invalid route.

Exchanges IPv6 reachability information with routers
sharing the common data link layer via route update
messages.

Operates within an Autonomous System (AS), which comprises
one or more routers or networks controlled by a common
network administrator.

Installs the best route in the routing table.

Functions in either split horizon or poison reverse mode.

Includes Simple Network Management Protocol (SNMP) support.

Helps an IPv6 network understand IPv6 route information.

Conforms to the Internet Engineering Task Force-Request for
Comments 2080 (IETF-RFC 2080) RIPng for IPv6.

Which layer of the 7 layer model provides services to the Application layer over the Session layer connection? A.) Transport B.) Application C.) Session D.) Network E.) Datalink F.) Presentation

2 Answers   CTS,

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Hi Guys I am facing one problem while configuring PAP over Point to Point links. Configuration scenario is like this. ROUTER 1: (Hostname – R1) R1(config)#username R2 password CCNA2 R1(config)#interface serial 1/1 R1(config-if)ip address 10.0.0.1 255.0.0.0 R1(config-if)#lock rate 64000 R1(config-if)#encapsulation ppp R1(config-if)#ppp authentication pap R1(config-if)#ppp pap sent –username R1 password CCNA1 R1(config-if)#no shutdown ROUTER 2: (Hostname – R2) R2(config)#usename R1 password CCNA1 R2(config)#interface serial 1/1 R2(config-if)#ip address 10.0.0.2 255.0.0.0 R2(config-if)#encapsulation ppp R2(config-if)# ppp authentication pap R2(config-if)# ppp pap sent –username R2 password CCNA2 R2(config-if)#no shutdown Now problem is that, after configure the command “ppp authentication pap” the “Line protocol” status goes down on each router. But when I disable this command using “no ppp authentication pap”, the “Line Protocol” status goes up. What could be the problem, can anyone explain it plzzz….!!! Thanks in Advance…!! Shahin..

6 Answers  

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what is the subnet for the host ip address 172.16.210.0/22

8 Answers   IBM, Microland,

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Which three statements about common elements of the TCP/IP protocol stack are true? (Choose three) A. IP provides connectionless service and routing capabilities B. APP enables devices to locate the IP address of local devices C. UDP provides simple connectionless service without windowing or acknowledgments D. ICMP provides connection oriented management data to routers and Layer 3 switches E. TCP enables devices to send large quantities of data using windowing in a connection oriented manner

2 Answers  

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In regards to the OSI seven-layer model, at which layer is EBCDIC and ASCII? A.) Presentation B.) Application C.) Transport D.) Session E.) Datalink F.) Network

1 Answers  

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Which ISDN protocol prefix specifies switching and signalling? A.) I B.) E C.) Q D.) S

1 Answers  

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Which OSI layer end to end communication, segmentation and re-assembly? A.) Network B.) Transport C.) Physical D.) Application E.) Data-Link F.) Presentation

3 Answers  

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Which type of switching reads just the address portion of the frame and then immediately starts forwarding it? A.) Cut-Through B.) Store-and-Forward C.) Tabling D.) Routing E.) Inverse ARP F.) Fast Forward

1 Answers  

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What ISDN protocol specifies concepts, terminology, and services? A.) Q B.) S C.) I D.) E

1 Answers   Ethio Telecom,

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Identify the access-list range for an extended IP access-list? A.) 800 - 899 B.) 1 - 99 C.) 1000 - 1099 D.) 100 - 199

4 Answers  

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Which protocols do periodically updates?

0 Answers  

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Which of the following is an example of the Physical Layer? A.) SQL B.) IP C.) LLC D.) DDP E.) Ethernet

1 Answers  

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