User's Manual Part 2

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31JadeOSUserManual
(JadeOS) (config-if)#mtu 1460
(JadeOS) (config-if)#tcp4mss 1440
6.5ConfiguringGRETunnel
GRE(GenericRoutingEncapsulation)specifiesaprotocolforencapsulationofanar‐
bitrarypr otocoloveranotherarbitrarynetworklayerprotoc ol.
GREdefinedinRFC2784andupdatedbyRFC2890.
TocreateaGREtunnelinterfaceandenterinterfaceconfigurationmodeonJadeOS,
usethefollowingcommand:
interface tunnel <id>
tunnel mode gre
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Figure6‐3GREtunnel
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TocreateaGREtunnelonJadeOS,usethefollowingsteps:
(JadeOS)(config) #interface tunnel 1
(JadeOS)(config-if) #tunnel mode gre
(JadeOS)(config-if) #ip address x.x.x.x/x
(JadeOS)(config-if) #tunnel source x.x.x.x
(JadeOS)(config-if) #tunnel destination x.x.x.x
(JadeOS)(config-if) #tunnel key <0-4294967295>
(JadeOS)(config-if) #tunnel checksum
6.6ConfiguringDHCP
TheDynamicHostConfigurationProtocol(DHCP)isanetworkconfigurationprotocol
forhost sonInternetProtocol(IP)networks.UDPprotocolmainlyhastwousages:
- Reduceclient’sconfigurationburden,usedinthechangeofoffice.
- Reducenetworkadministrator’sconfigurationburden.UDPachievesaddress
unifieddistribution,centralizedmanagementandDHCPSnooping
rational
using,whichisgoodforavoidingnetworkat tackandensuringresourcera‐
tionallyinuse.
Becauseof theterminalmobility,wirelessnetworkarchitecture hasa highstandard
onDHCPprotocol.Itstillhashighstandardonthescaleofaddresspoolandaddress
distributionrateinSPenvironment.