WhendesigningtheroutingforanEnterpriseCampusnetworkitisimportanttokeepwhileofthe
2021-05-05
A.Filteringisonlyusefulwhencombinedwithroutesummarization
B.Itisbesttofilter（allow）thedefaultandsummaryprefixesonlyintheEnterpriseEdgetoremotesitesorsite-to-siteIPsecVPNnetworks
C.IGPs（forexampleEIGRPorOSPF）aresuperiortoroutefilteringinavoidingininappropriatetransittrafficthroughremotenodesorinaccurateorinappropriateroutingupdates
D.Theprimarylimitationofrouterfilteringisthatitcanonlybeappliedonoutboundupdates
正确答案：参考D
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