discovery_smb_isp_chapter_4_en思科網(wǎng)絡(luò)技術(shù)學(xué)院ccna40官方資料-ccnadiscovery-cac建議版discovery_ppt英文版-d2_smb(編輯修改稿)
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【文章內(nèi)容簡介】 Using the sub mask to determine work ID and host ID 16 思科網(wǎng)絡(luò)技術(shù)學(xué)院理事會(huì) . Custom Sub Masks One work with 7 hosts, another with 60 hosts, and a third with 34 hosts. All sub use the same mask. 17 思科網(wǎng)絡(luò)技術(shù)學(xué)院理事會(huì) . Remember that the allzeros and allones host addresses are reserved for the work designation and the broadcast address. When determining how many hosts can include in each sub, it is necessary to include the router interface as well as the individual host devices. Custom Sub Masks 18 思科網(wǎng)絡(luò)技術(shù)學(xué)院理事會(huì) . Communicating Between Subs The interfaces on routers that connect to each other are assigned IP addresses in the same work or sub, and that clients are assigned default gateways that they can reach. PT Communicating Between Handson Lab Subting a Network Here the mon link shows the two routers connected on the addresses 19 思科網(wǎng)絡(luò)技術(shù)學(xué)院理事會(huì) . IPv6 ? IPv6 can create more IP addresses ? IPv6 was first proposed in 1998 with RFC 2460 ? IPv6 addresses are 128bits as 32 hexadecimal digits ? The IPv6 address has a threepart hierarchy： the global prefix 、 the sub and the Interface Identifier (ID) 20 思科網(wǎng)絡(luò)技術(shù)學(xué)院理事會(huì) . IPv6 A general list of improvements that IPv6 proposes are: ?More address space ?Better address space management ?Easier TCP/IP administration ?Modernized routing capabilities ?Improved support for multicasting, security, and mobility. CIDR and private IP addressing were developed to provide a temporary solution to the problem of IP address depletion, but they did not create more IP addresses. IPv6 create more IP addresses. 21 思科網(wǎng)絡(luò)技術(shù)學(xué)院理事會(huì) . IPv
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