diff --git a/contrib/aws/common.py b/contrib/aws/common.py
index 82d6ff5..e9aa736 100644
--- a/contrib/aws/common.py
+++ b/contrib/aws/common.py
@@ -120,7 +120,7 @@ def find_ami(region, owner, name_pattern, arch='x86_64'):
 
 
 class EC2Environment:
-    def __init__(self, vpncloud_version, region, node_count, instance_type, vpncloud_file=None, use_spot=True, max_price=0.1, ami=('amazon', 'amzn2-ami-hvm-*'), username="ec2-user", subnet=CREATE, keyname=CREATE, privatekey=CREATE, tag="vpncloud", cluster_nodes=False):
+    def __init__(self, vpncloud_version, region, node_count, instance_type, vpncloud_file=None, use_spot=True, max_price=0.1, ami=('amazon', 'al2023-ami-*-hvm-*'), username="ec2-user", subnet=CREATE, keyname=CREATE, privatekey=CREATE, tag="vpncloud", cluster_nodes=False):
         self.region = region
         self.node_count = node_count
         self.instance_type = instance_type
@@ -249,7 +249,6 @@ runcmd:
                             "Ebs": {
                                 "DeleteOnTermination": True,
                                 "VolumeType": "gp2",
-                                "VolumeSize": 8,
                             }
                         }
                     ],
diff --git a/contrib/aws/performance.py b/contrib/aws/performance.py
index 565421b..4f716c6 100755
--- a/contrib/aws/performance.py
+++ b/contrib/aws/performance.py
@@ -8,7 +8,7 @@ from datetime import date
 # Note: this script will run for ~8 minutes and incur costs of about $ 0.02
 
 FILE = "../../target/release/vpncloud"
-VERSION = "2.3.0"
+VERSION = "2.4.0"
 REGION = "eu-central-1"
 
 env = EC2Environment(
diff --git a/src/device.rs b/src/device.rs
index e712aa6..e76bb01 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -10,20 +10,27 @@ use std::{
     fs::{self, File},
     io::{self, BufRead, BufReader, Cursor, Error as IoError, Read, Write},
     net::{Ipv4Addr, UdpSocket},
-    os::unix::io::{AsRawFd, RawFd},
+    os::{unix::io::AsRawFd, fd::RawFd},
     str,
-    str::FromStr,
+    str::FromStr
 };
 
 use crate::{crypto, error::Error, util::MsgBuffer};
 
 static TUNSETIFF: libc::c_ulong = 1074025674;
 
+#[repr(C)]
+#[derive(Copy, Clone)]
+struct IfReqDataAddr {
+    af: libc::c_int,
+    addr: Ipv4Addr
+}
+
 #[repr(C)]
 union IfReqData {
     flags: libc::c_short,
     value: libc::c_int,
-    addr: (libc::c_short, Ipv4Addr),
+    addr: IfReqDataAddr,
     _dummy: [u8; 24],
 }
 
@@ -392,11 +399,11 @@ fn get_device_addr(ifname: &str) -> io::Result<Ipv4Addr> {
     let res = unsafe { libc::ioctl(sock.as_raw_fd(), libc::SIOCGIFADDR.try_into().unwrap(), &mut ifreq) };
     match res {
         0 => {
-            let af = unsafe { ifreq.data.addr.0 };
+            let af = unsafe { ifreq.data.addr.af };
             if af as libc::c_int != libc::AF_INET {
                 return Err(io::Error::new(io::ErrorKind::AddrNotAvailable, "Invalid address family".to_owned()));
             }
-            let ip = unsafe { ifreq.data.addr.1 };
+            let ip = unsafe { ifreq.data.addr.addr };
             Ok(ip)
         }
         _ => Err(IoError::last_os_error()),
@@ -407,7 +414,8 @@ fn get_device_addr(ifname: &str) -> io::Result<Ipv4Addr> {
 fn set_device_addr(ifname: &str, addr: Ipv4Addr) -> io::Result<()> {
     let sock = UdpSocket::bind("0.0.0.0:0")?;
     let mut ifreq = IfReq::new(ifname);
-    ifreq.data.addr = (libc::AF_INET as libc::c_short, addr);
+    ifreq.data.addr.af = libc::AF_INET as libc::c_int;
+    ifreq.data.addr.addr = addr;
     let res = unsafe { libc::ioctl(sock.as_raw_fd(), libc::SIOCSIFADDR.try_into().unwrap(), &mut ifreq) };
     match res {
         0 => Ok(()),
@@ -423,11 +431,11 @@ fn get_device_netmask(ifname: &str) -> io::Result<Ipv4Addr> {
     let res = unsafe { libc::ioctl(sock.as_raw_fd(), libc::SIOCGIFNETMASK.try_into().unwrap(), &mut ifreq) };
     match res {
         0 => {
-            let af = unsafe { ifreq.data.addr.0 };
+            let af = unsafe { ifreq.data.addr.af };
             if af as libc::c_int != libc::AF_INET {
                 return Err(io::Error::new(io::ErrorKind::AddrNotAvailable, "Invalid address family".to_owned()));
             }
-            let ip = unsafe { ifreq.data.addr.1 };
+            let ip = unsafe { ifreq.data.addr.addr };
             Ok(ip)
         }
         _ => Err(IoError::last_os_error()),
@@ -438,7 +446,8 @@ fn get_device_netmask(ifname: &str) -> io::Result<Ipv4Addr> {
 fn set_device_netmask(ifname: &str, addr: Ipv4Addr) -> io::Result<()> {
     let sock = UdpSocket::bind("0.0.0.0:0")?;
     let mut ifreq = IfReq::new(ifname);
-    ifreq.data.addr = (libc::AF_INET as libc::c_short, addr);
+    ifreq.data.addr.af = libc::AF_INET as libc::c_int;
+    ifreq.data.addr.addr = addr;
     let res = unsafe { libc::ioctl(sock.as_raw_fd(), libc::SIOCSIFNETMASK.try_into().unwrap(), &mut ifreq) };
     match res {
         0 => Ok(()),