commit cd309138ceda1bdb1cd74aeede1d2585d2b637b3
author Mark Chien <markchien@google.com> Mon May 25 02:04:59 2020 +0000
committer Mark Chien <markchien@google.com> Mon May 25 13:27:35 2020 +0000
tree e532506d2b3230d204e75dd46fd5c2345ea0f804
parent 502637037287ce7b972c6e7c6584ec27472af574

Adjust TTL for ipv6 tethering

If upstream is cellular, set the TTL in Router Advertisements to
"network-set TTL - 1" for carrier requirement. For other non-cellular
upstream, set TTL as "network-set TTL + 1" to preventing arbitrary
distinction between tethered and untethered traffic.

Bug: 154776299
Test: atest TetheringTests

Merged-In: I7f2696a642f96c6aafb5613b980bf5bcdd08bbda
Change-Id: I7f2696a642f96c6aafb5613b980bf5bcdd08bbda