network: implement icmp nat support

network/examples/ping.rs

@@ -0,0 +1,21 @@
+use std::{net::Ipv6Addr, str::FromStr, time::Duration};
+
+use anyhow::Result;
+use hyphanet::icmp::{IcmpClient, IcmpProtocol};
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let client = IcmpClient::new(IcmpProtocol::Icmp6)?;
+    let payload: [u8; 4] = [12u8, 14u8, 16u8, 32u8];
+    let result = client
+        .ping6(
+            Ipv6Addr::from_str("2606:4700:4700::1111")?,
+            0,
+            1,
+            &payload,
+            Duration::from_secs(10),
+        )
+        .await?;
+    println!("reply: {:?}", result);
+    Ok(())
+}