src_ip->Append(fast_ntoh(packet.src_ip));

dst_ip->Append(fast_ntoh(packet.dst_ip));

std::string src_ip_in_string;

src_ip_in_string.resize(16);

if (packet.ip_protocol_version == 6) {

// Copy data from internal structure to std::string

memcpy(src_ip_in_string.data(), &packet.src_ipv6, sizeof(packet.src_ipv6));

} else {

// Fill by zeros

memset(src_ip_in_string.data(), 0, 16);

}

src_ip_v6->Append(src_ip_in_string);