本案例使用Cisco三层交换机结合MikrotikRouteros配置OSPF动态路由及多VlanDhcp服务器中继配置。??使用设备如下??三层交换机：Cisco3550EMI??接入层交换机：HUAWEIQuidwayS2008??MikrotikRouterOs3.13??网络拓扑如下：????配置目的：验证RouterosOSPF动态路由及DHCP中继??配置文档：
引用:
??CISCO3550iprouting#开启路由功能#ipdhcpexcluded-address10.100.0.100#设置dhcp服务器ip地址#interfaceFastEthernet0/2switchporttrunkencapsulationdot1qswitchportmodetrunk#设置与2层交换机互联的trunk端口#interfaceFastEthernet0/23switchportaccessvlan2switchportmodeaccessspanning-treeportfast#设置与ros连接的端口的vlan#interfaceVlan2descriptionserveripaddress10.100.0.1255.255.255.0#设置3层交换机vlan接口ip#!interfaceVlan3descriptionofficeipaddress10.100.3.1255.255.255.0iphelper-address10.100.0.100!#设置3层交换机vlan接口ip及配置dhcp中继#interfaceVlan4descriptionsalesipaddress10.100.4.1255.255.255.0iphelper-address10.100.0.100!#设置3层交换机vlan接口ip及配置dhcp中继#interfaceVlan5descriptionusersipaddress10.100.5.1255.255.255.0iphelper-address10.100.0.100!#设置3层交换机vlan接口ip及配置dhcp中继#routerospf10router-id10.100.0.1log-adjacency-changesnetwork10.100.0.00.0.255.255area10.100.0.0#配置ospf进程及area信息#HUAWEIQuidwayS2008配置：interfaceEthernet0/6switchportaccessvlan5!#配置用户端口#interfaceEthernet0/7switchportaccessvlan3!#配置用户端口#interfaceEthernet0/8switchportaccessvlan4#配置用户端口#interfaceEthernet0/9switchportmodetrunkswitchporttrunkallowedvlanall!#设置与3层交换机互联的trunk端口#MikrotikRouteros:/ippooladdname="vlan3"ranges=10.100.3.2-10.100.3.254addname="vlan4"ranges=10.100.4.2-10.100.4.254addname="vlan5"ranges=10.100.5.2-10.100.5.254#设置不同Vlan的地址池#/ipdhcp-serveraddaddress-pool=vlan3authoritative=after-2sec-delaybootp-support=static\??disabled=nointerface=inlease-time=3dname="vlan3"relay=10.100.3.1addaddress-pool=vlan4authoritative=after-2sec-delaybootp-support=static\??disabled=nointerface=inlease-time=3dname="vlan4"relay=10.100.4.1addaddress-pool=vlan5authoritative=after-2sec-delaybootp-support=static\??disabled=nointerface=inlease-time=3dname="vlan5"relay=10.100.5.1#设置Dhcp-server使之支持Dhcp中继#/routingospfareaaddarea-id=0.0.0.0authentication=nonedisabled=noname="backbone"\??type=defaultaddarea-id=10.100.0.0authentication=nonedisabled=noname="area1"\??type=default#配置ospfarea#/ipaddressaddaddress=10.100.0.100/24broadcast=10.100.0.255comment=""disabled=no\??interface=innetwork=10.100.0.0#配置内部IP地址#/ipdnssetallow-remote-requests=yescache-max-ttl=1wcache-size=2048KiB\??max-udp-packet-size=512primary-dns=192.168.100.208\#配置dns#/ipfirewallnataddaction=masqueradechain=srcnatcomment=""disabled=no\??src-address=10.100.0.0/16#配置NAT#/routingospfsetdistribute-default=always-as-type-2metric-bgp=20metric-connected=20\??metric-default=1metric-rip=20metric-static=20mpls-te-area=unspecified\??mpls-te-router-id=unspecifiedredistribute-bgp=no\??redistribute-connected=noredistribute-rip=noredistribute-static=no\??router-id=10.100.100.2/routingospfinterfaceaddauthentication=noneauthentication-key=""cost=10dead-interval=40s\??disabled=nohello-interval=10sinterface=innetwork-type=broadcast\??passive=nopriority=1retransmit-interval=5stransmit-delay=1s/routingospfnetworkaddarea=area1disabled=nonetwork=10.100.0.0/16#配置OSPF路由协议#
cisco3550#showiprouteCodes:C-connected,S-static,R-RIP,M-mobile,B-BGP????D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea????N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2????E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP????i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2????ia-IS-ISinterarea,-candidatedefault,U-per-userstaticroute????o-ODR,P-periodicdownloadedstaticrouteGatewayoflastresortis10.100.0.100tonetwork0.0.0.0????10.0.0.0/24issubnetted,4subnetsC????10.100.4.0isdirectlyconnected,Vlan4C????10.100.5.0isdirectlyconnected,Vlan5C????10.100.3.0isdirectlyconnected,Vlan3C????10.100.0.0isdirectlyconnected,Vlan2OE20.0.0.0/0[110/1]via10.100.0.100,01:09:52,Vlan2
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[admin@MikroTik]/iproute>printFlags:X-disabled,A-active,D-dynamic,C-connect,S-static,r-rip,b-bgp,o-ospf,m-mme,B-blackhole,U-unreachable,P-prohibit#????DST-ADDRESS??????PREF-SRC??????GATEWAY-STATEGATEWAY????????????????????????????DISTANCEINTERFACE??????????????????????0ADS??0.0.0.0/0??????????????????reachable????192.168.18.1????????????????????????0??????out??????????????????????????1ADC??10.100.0.0/24????10.100.0.100????????????????????????????????????????????0??????in??????????????????????????2ADo??10.100.3.0/24??????????????reachable????10.100.0.1??????????????????????????110????in??????????????????????????3ADo??10.100.4.0/24??????????????reachable????10.100.0.1??????????????????????????110????in??????????????????????????4ADo??10.100.5.0/24??????????????reachable????10.100.0.1??????????????????????????110????in??????????????????????????5ADC??192.168.18.0/24??192.168.18.158????????????????????????????????????????????0??????out
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