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pf(4) doesn't send RST when "block return" is set, always drop packet incorrectly.
Issue #83
closed
IPv4/v6 boss uses pf_check_proto_cksum(AF_INET), so IPv6 packet checksum is always mismatch, so never sent RST.
OpenBSD already fixed this bug pf.c rev1.567.
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BUGFIX: Issue
#83-- pf(4) doesn't send RST when "block return" is set, always drop packet incorrectly.→ <<cset 52169419b031>>