match process1(SlipNoConv, global.config.mtu, &data, |header|{
let saddr = ip_packet_addr::<false>(header)?;
let daddr = ip_packet_addr::<true>(header)?;
match process1(SlipNoConv, global.config.mtu, &data, |header|{
let saddr = ip_packet_addr::<false>(header)?;
let daddr = ip_packet_addr::<true>(header)?;