IPFW_FLAG_KEEPALIVE
KASSERT(ctx->ipfw_flags & IPFW_FLAG_KEEPALIVE,
ctx->ipfw_flags &= ~IPFW_FLAG_KEEPALIVE;
KASSERT(ctx->ipfw_flags & IPFW_FLAG_KEEPALIVE,
KASSERT(ctx->ipfw_flags & IPFW_FLAG_KEEPALIVE,
KASSERT(ctx->ipfw_flags & IPFW_FLAG_KEEPALIVE,
KASSERT((ctx->ipfw_flags & IPFW_FLAG_KEEPALIVE) == 0,
ctx->ipfw_flags |= IPFW_FLAG_KEEPALIVE;