Verify that the kernel, when both SACK and Duplicate SACK supports are off, is not crashed by a TCP connection on an unreliable network (Namely, some of the packet is lost, some of them is duplicated). tcp4-uni-dsackoff01 IPv4 tcp4-uni-dsackoff02 IPv4 IPsec [ AH / transport ] tcp4-uni-dsackoff03 IPv4 IPsec [ AH / tunnel ] tcp4-uni-dsackoff04 IPv4 IPsec [ ESP / transport ] tcp4-uni-dsackoff05 IPv4 IPsec [ ESP / tunnel ] tcp4-uni-dsackoff06 IPv4 IPcomp [ transport ] tcp4-uni-dsackoff07 IPv4 IPcomp [ tunnel ] tcp4-uni-dsackoff08 IPv4 Network is delayed tcp4-uni-dsackoff09 IPv4 IPsec [ AH / transport ] Network is delayed tcp4-uni-dsackoff10 IPv4 IPsec [ AH / tunnel ] Network is delayed tcp4-uni-dsackoff11 IPv4 IPsec [ ESP / transport ] Network is delayed tcp4-uni-dsackoff12 IPv4 IPsec [ ESP / tunnel ] Network is delayed tcp4-uni-dsackoff13 IPv4 IPcomp [ transport ] Network is delayed tcp4-uni-dsackoff14 IPv4 IPcomp [ tunnel ] Network is delayed tcp6-uni-dsackoff01 IPv6 tcp6-uni-dsackoff02 IPv6 IPsec [ AH / transport ] tcp6-uni-dsackoff03 IPv6 IPsec [ AH / tunnel ] tcp6-uni-dsackoff04 IPv6 IPsec [ ESP / transport ] tcp6-uni-dsackoff05 IPv6 IPsec [ ESP / tunnel ] tcp6-uni-dsackoff06 IPv6 IPcomp [ transport ] tcp6-uni-dsackoff07 IPv6 IPcomp [ tunnel ] tcp6-uni-dsackoff08 IPv6 Network is delayed tcp6-uni-dsackoff09 IPv6 IPsec [ AH / transport ] Network is delayed tcp6-uni-dsackoff10 IPv6 IPsec [ AH / tunnel ] Network is delayed tcp6-uni-dsackoff11 IPv6 IPsec [ ESP / transport ] Network is delayed tcp6-uni-dsackoff12 IPv6 IPsec [ ESP / tunnel ] Network is delayed tcp6-uni-dsackoff13 IPv6 IPcomp [ transport ] Network is delayed tcp6-uni-dsackoff14 IPv6 IPcomp [ tunnel ] Network is delayed