单项选择题
When a BGP router is not capable of understanding 4-byte AS numbers， it will see 4-byte AS numbers as aspecial， reserved， 2-byte AS number in the AS path. Which 2-byte AS number is this reserved one？（）
A.00000 B.12345 C.23456 D.65000 E.99999
单项选择题 DuringtheIPv6addressresolution，anodesendsaneighborsolicitationmessageinordertodiscoverwhichofthese？（）
多项选择题 WhichtwotunnelingtechniquesinIPv6donotrequireanIPv4tunneldestinationintheconfiguration？（）
多项选择题 WhichtwoofthefollowingareconsideredvalidrouterIDsforEIGRPv6？（）
