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    Book technic cal_ip Book technic cal_ip Document Transcript

    • IP Address IP Address Internet Protocol Address IP Address Network Router, Switch , Firewall , IP Camera , IP Phone , Accesspoint , IPAddress IP Address IPv4(IP version 4) IPv6 (IP version 6) IP Address IPv6 IP Address Asia Pacific APNIC Internet ISP IP APNIC ISP Certificate CCNA , CCNP , LPI , Security + , CWNA IP Address IPv4IPv4IPv4 32 bits (4 bytes ,( 8bits=1byte)) 4 8 bits Dot 0 00000000 . 00000000 . 00000000 . 00000000 1 11111111 . 11111111 . 11111111 . 11111111 10 0 0.0.0.0 1 255.255.255.255 IPv4 0.0.0.0 – 255.255.255.255
    • IPIPv4 0.0.0.0 - 255.255.555.555 IPv4 5 5 Class byte 1class A byte 1 0class B byte 1 1 2 0class C byte 1 2 1 3 0class D byte 1 3 1 4 0class E byte 1 4 1
    • IP ClassClass A 0.0.0.0 127.255.255.255Class B 128.0.0.0 191.255.255.255Class C 192.0.0.0 223.255.255.255Class D 224.0.0.0 239.255.255.255Class E 240.0.0.0 255.255.255.255IP Set Host 3 Class Class A, B C IP ClassD multicast applications IP Class EIPv4 2 Public IP ( IP ) Private IP ( IP )Public IP ( IP ) IP set network Server Router Public IP ( IP ) Network InternetPrivate IP ( IP ) set PCPublic IP Internet Gateway Router ,Server ModemDSL Service NAT ( ) InternetPrivate IP Class A,B CClass A : 10.x.x.x ( 10.0.0.0 - 10.255.255.255 )Class B : 172.16.x.x - 172.31.x.x ( 172.16.0.0 - 172.31.255.255 )Class C : 192.168.x.x ( 192.168.0.0 - 192.168.255.255 ) IPv4 IP Address 1 IP AddressSubnet Mask IP AddressNetwork IP IP AddressBroadcast IP IP AddressRange host IP IP Subnets , hosts / SubnetSubnet Mask network IP Address 4 255.255.255.0 computer network subnet Subnet Mask
    • Subnet Mask/30 mask 30 bits/27 mask 27 bits/20 mask 20 bits mask bit Subnet Mask bits mask 1 bits 0Ex /30/30 11111111 . 11111111 . 11111111 . 111111/00 Subnet Mask/30 255.255.255.25211111111 . 11111111 . 11111111 . 111111/00 1 8 255 1 6 252 24 bits 1bits 30 252Ex /27/27 11111111 . 11111111 . 11111111 . 111/00000 Subnet Mask/27 255.255.255.224
    • Ex /20/20 11111111 . 11111111 . 1111/0000 . 00000000 Subnet Mask/20 255.255.240.0 Subnet MaskMask default IP ClassClass A = Mask 8 bits = 255 . 0 . 0 . 0Class B = Mask 16 bits = 255 . 255 . 0 . 0Class C = Mask 24 bits = 255 . 255 . 255 . 0Subnet maskMask 10 = 255 . 192 . 0 . 0 Mask 21 = 255 . 255 . 248 . 0Mask 11 = 255 . 224 . 0 . 0 Mask 22 = 255 . 255 . 252 . 0Mask 12 = 255 . 240 . 0 . 0 Mask 23 = 255 . 255 . 254 . 0Mask 13 = 255 . 248 . 0 . 0 Mask 25 = 255 . 255 . 255 . 128Mask 14 = 255 . 252 . 0 . 0 Mask 26 = 255 . 255 . 255 . 192Mask 15 = 255 . 254 . 0 . 0 Mask 27 = 255 . 255 . 255 . 224Mask 17 = 255 . 255 . 128 . 0 Mask 28 = 255 . 255 . 255 . 240Mask 18 = 255 . 255 . 192 . 0 Mask 29 = 255 . 255 . 255 . 248Mask 19 = 255 . 255 . 224 . 0 Mask 30 = 255 . 255 . 255 . 252Mask 20 = 255 . 255 . 240 . 0 Mask 31 = 255 . 255 . 255 . 254 1 255 1 4 240 0 0 Subnet Mask Network IP Broadcast IPNetwork IP IP Subnet RoutingSet PC
    • Broadcast IP IP Subnet Broadcast Set PCEx.1 192.168.22.50/30 30 Subnet Mask 255.255.255.252 1 8 255 ( 1 6 252 subnet mask 255.255.255.252 IP Subnet Subnet Mask 2 bit 00 , 01 , 10 , 11 4 00 , 01 , 10 , 11 00 0 01 1 10 2 11 3 IP Subnet Subnet Mask 255.255.255.252 4 252 4 30 IP subnet 0-3 , 4-7 , 8-11 , _ _ _ , 252-255 IPv4192.168.22.0 - 192.168.22.3192.168.22.4 - 192.168.22.7192.168.22.8 - 192.168.22.11-----------192.168.22.48 - 192.168.22.51---------192.168.22.252 - 192.168.22.255
    • 3 and bit 3 bit 1 add 3 10 IP Address subnet Network IP IP Address subnet Broadcast IP 192.168.22.50/301. Network IP IP Address 192.168.22.482. Broadcast IP IP Address 192.168.22.513. Range hosts IP hosts Per Subnet 192.168.22.49 - 192.168.22.50 IP set host 2 IP Network IP Subnet Mask AND IP AddressNetwork IP IP IP Subnet192.168.22.50/30 50 4 Netwok IP /30 1 subnet IP 4
    • Ex.2 192 .168.5.33/27 which IP address should be assigned to the PC host ?A.192.168.5.5B.192.168.5.32C. 192.168.5.40D. 192.168.5.63E. 192.168.5.75 2711111111 . 11111111 . 11111111 . 111/XXXX X = mask 27 bit 1 5bit/27 255 . 255 . 255 . 224 4 bit 8 bit 111128+64+32 = 224 Subnet Mask IP Subnet 32 224 32 192 .168.5.33/27 Network192.168.5.33/27 192.168.5.32 - 192.168.5.63 IP Network IP ( 192.168.5.32 ) IP Broadcast IP (192.168.5.63 ) set PC IP Set PC192.168.5.33 - 192.168.5.62 C. 192.168.5.40Ex.3 IP 10.10.10.0/13 IP set hostIP set host Network IPBroadcast IP 13 mask 13 bit subnet mask
    • 11111111 . 11111/XXX . XXXXXXXX . XXXXXXXX = mask 13 bit 1 bit/13 255 . 248 . 0 . 0 IP 10.10.10.0 subnet mask 255.248.0.0 IP subnet mask 255.248.0.0 1 10 3 4 0 - 255 2 IP10 . X . 0 . 0 - 10 . X . 255 . 255 248 ( 2) 3 IP 8 0-7 , 8-15 , 16- 23 , _ _ _ , 248-25510 . 0 . 0 . 0 - 10 . . 255 . 25510 . 8 . 0 . 0 - 10 . . 255 . 255 ------------>10 . 16 . 0 . 0 - 10 . . 255 . 255------------10 . 248 . 0 . 0 - 10 . . 255 . 255 10.10.10.0/13 IP 10 .8 . 0 . 0 - 10 . 15 . 255 . 2551. Network IP IP Address 10 . 8 . 0 . 02. Broadcast IP IP Address 10 . 15 . 255 . 2553. Range host IP 10 . 8 . 0 . 1 - 10 . 15 . 255 . 254 IP 10.10.10.0/13 Host
    • Subnet hosts / Subnet hosts Subnet Subnet Mask n2 -2 n bits Mask 2 Network IP Broadcast IPEx.1 /30 11111111 . 11111111 . 11111111 . 111111/00 255.255.255.252 hosts/Subnet = 2 n - 2 = 22 - 2 = 4 - 2 = 2Ex.2 /20 11111111 . 11111111 . 1111/0000 . 00000000 255.255.240.0 hosts/Subnet = 2n - 2 = 212- 2 = 4096 - 2 = 4094 Subnet Subnet Mask n2 2 Subnet router cisco IP Subnet Zero n bits Mask . (dot)Ex.3 /30 11111111 . 11111111 . 11111111 . 111111/00 255.255.255.252 Subnet = 2n = 26 = 64Ex.4 /20 11111111 . 11111111 . 1111/0000 . 00000000 255.255.240.0 Subnet = 2n = 24 = 16Ex.5 /20 /27 Subnet Mask11111111 . 11111111 . 1111/1111 . 111/00000 n 7 Subnet = 2 = 2 = 128
    • Classful ClasslessClassful Class IP Mask IP ClassClass A ,B CClass A ( 0.0.0.0 - 127.255.255.255 )Class B ( 128.0.0.0 - 191.255.255.255 )Class C (192.0.0.0 - 223.255.255.255 ) IP Address Classful Classful default subnet maskA /8 255.0.0.0B /16 255.255.0.0C /24 255.255.255.0 routing protocols : Classful• RIP Version 1 (RIPv1)• IGRP Classless Classful Class IP Mask Classless Inter-Domain Routing (CIDR) Mask IP Class routing protocols : Classless• RIP Version 2 (RIPv2)• EIGRP• OSPF• IS-IS ( Mask Point-to-Point) 2 IPMask 30 bit ( /30 ) subnet mask 255.255.255.252LAN 20 mask 27 bit ( /27 ) subnet mask255.255.255.224 VLSMsubnet mask mask bit IP IP
    • VLSM•VLSM Subnet 1 IP IP•VLSM IP IP•VLSM Router Routing Table IP VLSM IP 192.168.55.0 /24 host Subnet VLSM IP 192.168.55.0 192.168.55.255 0-255 subnet 1 7 hosts Mask /28 hosts 14 ( /29 hosts 6 ) IP subnet /28 IP 192.168.55.0 -192.168.55.15 IPIP 192.168.55.16 – 192.168.55.255
    • 2 2 hosts Mask /30 hosts 2 IP subnets IP 1 subnet IP192.168.55.16 - 192.168.55.19 IP192.168.55.20 – 192.168.55.255 3 90 hosts Mask /25 hosts 126/25 2 subnets subnet IP subnet IP 192.168.55.128-192.168.55.255 IP192.168.55.20 – 192.168.55.127 4 2 hosts Mask /30 hosts 2 IP subnets IP subnet IP 192.168.55.20 - 192.168.55.23 IP192.168.55.24 – 192.168.55.127 5 23 hosts Mask /27 hosts 30 IP subnets IP subnet IP 192.168.55.32 - 192.168.55.63 IP192.168.55.24 – 192.168.55.31 192.168.55.64 – 192.168.55.127SummarizationSummarization IP networks network IP networks 3.16 Summarization IP bit mask bit
    • networks bits 22 mask 22bits ( /22 ) Summarization IP IP 2 4 ,5 ,6 7 4 4-7 IP 4 /22IPv6 IPv6 IP version 6 IP IPv4 128 bit 16 8 FFFF . FFFF . FFFF . FFFF. FFFF . FFFF . FFFF . FFFF IPv6 2301 : 0000 : 130F : 0000 : 0000 :09C0 : 876A : 130B IPv6- 0 4 : 0000 = :0- 0 0 : 0978 = : 978 : 00AB = :AB- 0 :: 0000:0000:0000 = :: :: IPv6 IPv6 123C : 0456 : 0000 : 87FD : 0000 : 0000 : CCA2 : 34E2 123C : 456 : 0 : 87FD : : CCA2 : 34E2 IPv4 IPv6IP 192 . 168 . 1 .1 : : 192 . 168 . 1 . 1
    • 16 0123456789ABCDEF 10 16 = 09C0 10 0 x 16 x 16 x 16 + 9 x 16 x 16 + 13 x 16 + 0 x 16 = 2512IPv6 3- Unicast- Multicast- Anycast Anycast MulticastIPv6 broadcast IPv60:0:0:0:0:0:0:0 IPv4 0.0.0.0 stateful configuration.0:0:0:0:0:0:0:1 ::1 127.0.0.1 IPv40:0:0:0:0:0:192.168.100.1 IPv6/IPv4 network environment.2000::/3 The global unicast address range.FC00::/7 The unique local unicast range.FE80::/10 The link-local unicast range.FF00::/8 The multicast range.3FFF:FFFF::/32 Reserved for examples and documentation.2001:0DB8::/32 Also reserved for examples and documentation.2002::/16 Used with 6to4, which is the transition system
    • IP Address1) In the implementation of VLSM techniques on a network using a single Class C IP address,which subnet mask is the most efficient for point-to-point serial links?A. 255.255.255.0B. 255.255.255.240C. 255.255.255.248D. 255.255.255.252E. 255.255.255.254Answer: D subnet mask link point-to-pointVLSM link point-to-point IP host 2 IP mask /30 255.255.255.252 hosts 2 IP2) Refer to the exhibit. The networks connected to router R2 have been summarized as a192.168.176.0/21 route and sent to R1. Which two packet destination addresses will R1 forward toR2? (Choose two.)A. 192.168.194.160B. 192.168.183.41C. 192.168.159.2D. 192.168.183.255E. 192.168.179.4F. 192.168.184.45Answer: BE networks Router R2 summarized 192.168.176.0/21 IP Router R1 forward Router R2 IP192.168.176.0/21/21 subnet mask 255.255.248.0192.168. X . 0 - 192.168. X . 255
    • 248 IP subnet 8 176176 8 22 Network IP 176 subnet 8IP 176-183192.168.176.0/21192.168. X . 0 - 192.168. X . 255192.168.176.0 - 192.168.183.255 B. 192.168.183.41 E. 192.168.179.43) The Ethernet networks connected to router R1 in the graphic have been summarized for routerR2 as 192.1.144.0/20. Which of the following packet destination addresses will R2 forward to R1,according to this summary? (Choose two.)A. 192.1.159.2B. 192.1.160.11C. 192.1.138.41
    • D. 192.1.151.254E. 192.1.143.145F. 192.1.1.144Answer: AD IP 192.1.144.0/20 2 /20 subnet mask 255.255.240.0192.1. X . 0 - 192.1. X . 255 240 IP subnet 16 144144 16 9 Network IP 144 subnet16 IP 144-159192.1.144.0/20192.1. X . 0 - 192.1. X . 255192.1.144.0 - 192.1.159.255 A. 192.1.159.2 D. 192.1.151.254
    • 4) Refer to the exhibit. All of the routers in the network are configured with the ip subnet-zerocommand. Which network addresses should be used for Link A and Network A? (Choose two.)A. Network A - 172.16.3.48/26B. Network A - 172.16.3.128/25C. Network A - 172.16.3.192/26D. Link A - 172.16.3.0/30E. Link A - 172.16.3.40/30F. Link A - 172.16.3.112/30Answer: BD Link A IP VLSM LinkRouter /30 Network A Hosts 120 Hosts /25 Network Diagram IP IP mask
    • B. Network A - 172.16.3.128/25 D. Link A - 172.16.3.0/305) If an ethernet port on a router was assigned an IP address of 172.16.112.1/20, what is themaximum number of hosts allowed on this subnet?A. 1024B. 2046C. 4094D. 4096E. 8190Answer: C Hosts /20 n 2 -2 n bits mask /20 11111111 . 11111111 . 1111/0000 . 00000000 255.255.240.0 hosts/Subnet = 2n - 2 = 212- 2 = 4096 - 2 = 4094 C. 40946) Refer to the exhibit. A new subnet with 12 hosts has been added to the network. Which subnetaddress should this network use to provide enough useable addresses while wasting the fewestaddresses?
    • A. 192.168.10.80/28B. 192.168.10.80/29C. 192.168.10.96/28D. 192.168.10.96/29Answer: C IP VLSM IP 12 hostsmask /28 hosts 14 /28 2 A. 192.168.10.80/28 C. 192.168.10.96/28 A. 192.168.10.80/28 (192.168.10.80 – 192.168.10.95)IP Router B 192.168.10.64/27 (192.168.10.64 – 192.168.10.95) C. 192.168.10.96/287) Which option is a valid IPv6 address?A. 2001:0000:130F::099a::12aB. 2002:7654:A1AD:61:81AF:CCC1C. FEC0:ABCD:WXYZ:0067::2A4D. 2004:1:25A4:886F::1Answer: D A :: 2 B IPv6 8 B 6 C IPv6 16 WXYZ
    • D IPv68) Which IP address can be assigned to an Internet interface?A. 10.180.48.224B. 9.255.255.10C. 192.168.20.223D. 172.16.200.18Answer:B IP set Interface Internet IP IPPublic IP PrivatePrivate IP Class A,B CClass A : 10.x.x.x ( 10.0.0.0 - 10.255.255.255 )Class B : 172.16.x.x - 172.31.x.x ( 172.16.0.0 - 172.31.255.255 )Class C : 192.168.x.x ( 192.168.0.0 - 192.168.255.255 ) B Private IP B. 9.255.255.10IP Public9) Refer to the exhibit. What is the most appropriate summarization for these routes?10.0.0.010.0.1.010.0.2.010.0.3.0A. 10.0.0.0 /21B. 10.0.0.0 /22C. 10.0.0.0 /23D. 10.0.0.0 /24Answer: B 3 4 0,1,2,3 0-3 4 3 4 /22 ( 16 bit )0-3 IP network IP 0 network B.10.0.0.0/22
    • 10) On the network 131.1.123.0/27, what is the last IP address that can beassigned to a host?A. 131.1.123.30B. 131.1.123.31C. 131.1.123.32D. 131.1.123.33Answer: A host 131.1.123.0/27 subnet mask /27 subnet mask 255.255.255.224 ( 24 bit )3 mask 224 32 131.1.123.0/27 131.1.123.0 - 131.1.123.31 Network IP 131.1.123.0 Broadcast IP 131.1.123.31 IP Hosts 131.1.123.1 - 131.1.123.30Host A. 131.1.123.30
    • 11) The ip subnet zero command is not configured on a router. Whatwould be the IP address of Ethernet0/0 using the first available address from the sixth subnet of the network192.168.8.0/29?A. 192.168.8.25B. 192.168.8.41C. 192.168.8.49D. 192.168.8.113Answer: C Router config ip subnet zero ip subnet 6 192.168.8.0/29 /29 subnet mask 255.255.255.248 ( 24 bit ) 1 subnet IP 8 IP C. 192.168.8.49
    • 12) Which of the following IP addresses fall into the CIDR block of115.64.4.0/22? (Choose three.)A. 115.64.8.32B. 115.64.7.64C. 115.64.6.255D. 115.64.3.255E. 115.64.5.128F. 115.64.12.128Answer: BCE IP 115.64.4.0/22 /22 subnet mask 255.255.252.0115.64. X . 0 - 115.64. X . 255 252 IP subnet 4 40–34–78 – 11 - 115.64.4.0/22 4-7115.64.4.0/22115.64. X . 0 - 115.64. X . 255115.64.4.0 - 115.64.7.255 B. 115.64.7.64 , C. 115.64.6.255 E. 115.64.5.128
    • web jodoi@jodoi.comhttp://www.jodoi.com/IP/ip1.html - http://www.jodoi.com/IP/ip5.htmlSybex.CCNA.Cisco.Certified.Network.Associate.Study.Guide.Exam. th.Edition.Aug. pdfTestInside V pdf http://www.jodoi.com