diff --git a/Cargo.toml b/Cargo.toml
index 6553358..99b684a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ default-members = ["insim", "insim_*"]
 resolver = "2"
 
 [workspace.package]
-version = "1.1.1"
+version = "2.0.0"
 authors = ["Karl Southern <karl@theangryangel.co.uk>"]
 edition = "2021"
 rust-version = "1.75"
diff --git a/insim/Cargo.toml b/insim/Cargo.toml
index db45bb6..0e425d2 100644
--- a/insim/Cargo.toml
+++ b/insim/Cargo.toml
@@ -37,9 +37,9 @@ from_variants = { workspace = true }
 futures-util = { workspace = true, optional = true }
 if_chain = { workspace = true }
 indexmap = { workspace = true }
-insim_core = { path = "../insim_core", version = "1.1.1" }
-insim_pth = { path = "../insim_pth", optional = true, version = "1.1.1" }
-insim_smx = { path = "../insim_smx", optional = true, version = "1.1.1" }
+insim_core = { path = "../insim_core", version = "2.0.0" }
+insim_pth = { path = "../insim_pth", optional = true, version = "2.0.0" }
+insim_smx = { path = "../insim_smx", optional = true, version = "2.0.0" }
 serde = { workspace = true, features = ["derive"], optional = true }
 thiserror = { workspace = true }
 tokio = { workspace = true, features = ["rt", "time", "net", "macros", "sync", "tracing"], optional = true }
diff --git a/insim/src/insim/acr.rs b/insim/src/insim/acr.rs
index 0bb4ed1..8365f83 100644
--- a/insim/src/insim/acr.rs
+++ b/insim/src/insim/acr.rs
@@ -11,6 +11,7 @@ use crate::identifiers::{ConnectionId, RequestId};
 #[repr(u8)]
 #[derive(Debug, Default, Clone)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 pub enum AcrResult {
     /// Command was processed
     #[default]
diff --git a/insim/src/insim/axm.rs b/insim/src/insim/axm.rs
index 04c002d..12a9f1b 100644
--- a/insim/src/insim/axm.rs
+++ b/insim/src/insim/axm.rs
@@ -30,6 +30,7 @@ pub struct ObjectInfo {
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 pub enum PmoAction {
     #[default]
     /// Sent by the layout loading system only
diff --git a/insim/src/insim/btn.rs b/insim/src/insim/btn.rs
index eb85575..ee9e4ca 100644
--- a/insim/src/insim/btn.rs
+++ b/insim/src/insim/btn.rs
@@ -92,6 +92,7 @@ bitflags::bitflags! {
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Used within [Bfn] to specify the action to take.
 pub enum BfnType {
     #[default]
diff --git a/insim/src/insim/cch.rs b/insim/src/insim/cch.rs
index d5ec9e9..7a91676 100644
--- a/insim/src/insim/cch.rs
+++ b/insim/src/insim/cch.rs
@@ -7,6 +7,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Camera/view identifiers
 pub enum CameraView {
     /// Arcade "follow" view
diff --git a/insim/src/insim/cim.rs b/insim/src/insim/cim.rs
index e4c5135..5ba0142 100644
--- a/insim/src/insim/cim.rs
+++ b/insim/src/insim/cim.rs
@@ -4,6 +4,7 @@ use crate::identifiers::{ConnectionId, RequestId};
 
 #[derive(Debug, Clone)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 /// Used within the [Cim] packet to indicate the mode.
 pub enum CimMode {
     /// Not in a special mode
@@ -48,6 +49,7 @@ impl Default for CimMode {
 #[repr(u8)]
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 /// CimMode::Normal, submode
 pub enum CimSubModeNormal {
     #[default]
@@ -87,6 +89,7 @@ impl From<u8> for CimSubModeNormal {
 #[repr(u8)]
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 /// CimMode::Garage, submode
 pub enum CimSubModeGarage {
     #[default]
@@ -142,6 +145,7 @@ impl From<u8> for CimSubModeGarage {
 #[repr(u8)]
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 /// CimMode::ShiftU, submode
 pub enum CimSubModeShiftU {
     #[default]
diff --git a/insim/src/insim/cnl.rs b/insim/src/insim/cnl.rs
index 5c69b2e..2f59e0e 100644
--- a/insim/src/insim/cnl.rs
+++ b/insim/src/insim/cnl.rs
@@ -7,6 +7,7 @@ use crate::identifiers::{ConnectionId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Used within [Cnl] to indicate the leave reason.
 pub enum CnlReason {
     #[default]
diff --git a/insim/src/insim/csc.rs b/insim/src/insim/csc.rs
index 752d794..cd5ea1b 100644
--- a/insim/src/insim/csc.rs
+++ b/insim/src/insim/csc.rs
@@ -13,6 +13,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Used within the [Csc] packet to indicate the type of state change.
 pub enum CscAction {
     #[default]
diff --git a/insim/src/insim/flg.rs b/insim/src/insim/flg.rs
index 205dd83..b842f30 100644
--- a/insim/src/insim/flg.rs
+++ b/insim/src/insim/flg.rs
@@ -8,6 +8,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 pub enum FlgType {
     #[default]
     /// Blue flag
diff --git a/insim/src/insim/hlv.rs b/insim/src/insim/hlv.rs
index 88f31d5..1e0bc09 100644
--- a/insim/src/insim/hlv.rs
+++ b/insim/src/insim/hlv.rs
@@ -13,6 +13,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Used within [Hlv] to indicate the hotlap validity failure reason.
 pub enum Hlvc {
     /// Ground
diff --git a/insim/src/insim/ipb.rs b/insim/src/insim/ipb.rs
new file mode 100644
index 0000000..e66e8a0
--- /dev/null
+++ b/insim/src/insim/ipb.rs
@@ -0,0 +1,120 @@
+use std::{default::Default, net::Ipv4Addr};
+
+use indexmap::{set::Iter as IndexSetIter, IndexSet};
+use insim_core::binrw::{self, binrw, BinRead, BinResult, BinWrite};
+
+use crate::identifiers::RequestId;
+
+const IPB_MAX_BANS: usize = 120;
+
+#[binrw::parser(reader, endian)]
+fn binrw_parse_ipb_bans(count: u8) -> BinResult<IndexSet<Ipv4Addr>> {
+    let mut data = IndexSet::new();
+    for _i in 0..count {
+        let ip = Ipv4Addr::from(u32::read_options(reader, endian, ())?);
+        let _ = data.insert(ip);
+    }
+    Ok(data)
+}
+
+#[binrw::writer(writer, endian)]
+fn binrw_write_ipb_bans(input: &IndexSet<Ipv4Addr>) -> BinResult<()> {
+    for i in input.iter() {
+        u32::from(*i).write_options(writer, endian, ())?;
+    }
+
+    Ok(())
+}
+
+#[binrw]
+#[bw(assert(banips.len() <= IPB_MAX_BANS))]
+#[derive(Debug, Clone, Default, PartialEq)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize))]
+/// Mods Allowed - restrict the mods that can be used
+pub struct Ipb {
+    /// Non-zero if the packet is a packet request or a reply to a request
+    pub reqi: RequestId,
+
+    /// Number of bans in this packet, from the wire
+    /// This value is not to be trusted as we use an IndexSet to record the bans internally. It is technically
+    /// possible that LFS could return duplicate entries, but we have no way of verifying that.
+    #[bw(calc = banips.len() as u8)]
+    #[brw(pad_after = 4)]
+    numb: u8,
+
+    #[br(parse_with = binrw_parse_ipb_bans, args(numb))]
+    #[bw(write_with = binrw_write_ipb_bans)]
+    banips: IndexSet<Ipv4Addr>,
+}
+
+impl Ipb {
+    /// Returns `true` if a Vehicle is contained in this packet
+    pub fn contains(&self, v: &Ipv4Addr) -> bool {
+        self.banips.contains(v)
+    }
+
+    /// Push a compressed form of a mod onto the list of allowed mods
+    /// and update the count.
+    pub fn insert(&mut self, ip: Ipv4Addr) -> bool {
+        self.banips.insert(ip)
+    }
+
+    /// Remove a Vehicle from this packet
+    pub fn remove(&mut self, ip: &Ipv4Addr) -> bool {
+        self.banips.shift_remove(ip)
+    }
+
+    /// Does this packet have no vehicles associated?
+    pub fn is_empty(&self) -> bool {
+        self.banips.is_empty()
+    }
+
+    /// Clear any previously allowed mods.
+    pub fn clear(&mut self) {
+        self.banips.clear()
+    }
+
+    /// Iterator for all allowed mods
+    pub fn iter(&self) -> IndexSetIter<'_, Ipv4Addr> {
+        self.banips.iter()
+    }
+
+    /// Returns the number of allowed mods
+    pub fn len(&self) -> usize {
+        self.banips.len()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::io::{Cursor, Seek};
+
+    use super::*;
+
+    #[test]
+    fn test_encoding() {
+        let mut bans = Ipb::default();
+        bans.reqi = RequestId(2);
+        let _ = bans.insert(Ipv4Addr::new(127, 0, 0, 1));
+
+        let mut buf = Cursor::new(Vec::new());
+        bans.write_le(&mut buf).unwrap();
+        buf.rewind().unwrap();
+
+        let buf2 = buf.clone().into_inner();
+        assert_eq!(
+            buf2,
+            [
+                2, // reqi
+                1, // numb
+                0, 0, 0, 0, // padding / unused
+                1, 0, 0, 127, // mod 1
+            ]
+        );
+
+        let data2 = Ipb::read_le(&mut buf).unwrap();
+        assert_eq!(bans, data2);
+        assert_eq!(data2.len(), 1);
+        assert!(data2.contains(&Ipv4Addr::new(127, 0, 0, 1)));
+    }
+}
diff --git a/insim/src/insim/jrr.rs b/insim/src/insim/jrr.rs
index e28d71b..a1b2153 100644
--- a/insim/src/insim/jrr.rs
+++ b/insim/src/insim/jrr.rs
@@ -8,6 +8,7 @@ use crate::identifiers::{ConnectionId, PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Used within the [Jrr] packet.
 pub enum JrrAction {
     #[default]
diff --git a/insim/src/insim/lap.rs b/insim/src/insim/lap.rs
index 6d9cb45..ea30ec5 100644
--- a/insim/src/insim/lap.rs
+++ b/insim/src/insim/lap.rs
@@ -13,6 +13,7 @@ use crate::identifiers::{PlayerId, RequestId};
 
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[derive(Debug, Default, Clone)]
+#[non_exhaustive]
 /// When /showfuel yes: double fuel percent / no: 255
 pub enum Fuel200 {
     /// Double fuel percent
@@ -62,6 +63,7 @@ impl BinRead for Fuel200 {
 
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[derive(Debug, Default, Clone)]
+#[non_exhaustive]
 /// When /showfuel yes: fuel added percent / no: 255
 pub enum Fuel {
     /// Double fuel percent
diff --git a/insim/src/insim/mod.rs b/insim/src/insim/mod.rs
index e2665f0..fe7cb0c 100644
--- a/insim/src/insim/mod.rs
+++ b/insim/src/insim/mod.rs
@@ -20,6 +20,7 @@ mod flg;
 mod hcp;
 mod hlv;
 mod iii;
+mod ipb;
 mod isi;
 mod ism;
 mod jrr;
@@ -82,6 +83,7 @@ pub use flg::{Flg, FlgType};
 pub use hcp::{Hcp, HcpCarHandicap};
 pub use hlv::{Hlv, Hlvc};
 pub use iii::Iii;
+pub use ipb::Ipb;
 pub use isi::{Isi, IsiFlags};
 pub use ism::Ism;
 pub use jrr::{Jrr, JrrAction};
diff --git a/insim/src/insim/msl.rs b/insim/src/insim/msl.rs
index e0c7a44..0190e37 100644
--- a/insim/src/insim/msl.rs
+++ b/insim/src/insim/msl.rs
@@ -11,6 +11,7 @@ use crate::identifiers::RequestId;
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 pub enum SoundType {
     #[default]
     /// Silent
diff --git a/insim/src/insim/mso.rs b/insim/src/insim/mso.rs
index 7cf97ff..f001753 100644
--- a/insim/src/insim/mso.rs
+++ b/insim/src/insim/mso.rs
@@ -14,6 +14,7 @@ use crate::identifiers::{ConnectionId, PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 pub enum MsoUserType {
     /// System message.
     #[default]
diff --git a/insim/src/insim/npl.rs b/insim/src/insim/npl.rs
index 27a3fc1..88869e4 100644
--- a/insim/src/insim/npl.rs
+++ b/insim/src/insim/npl.rs
@@ -13,6 +13,7 @@ use crate::identifiers::{ConnectionId, PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Tyre compounds/types
 pub enum TyreCompound {
     /// R1
diff --git a/insim/src/insim/oco.rs b/insim/src/insim/oco.rs
index 1d77366..c620641 100644
--- a/insim/src/insim/oco.rs
+++ b/insim/src/insim/oco.rs
@@ -8,6 +8,7 @@ use crate::identifiers::RequestId;
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Object Control action to take. Used within [Oco].
 pub enum OcoAction {
     #[default]
@@ -26,6 +27,7 @@ pub enum OcoAction {
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Which lights to manipulate. See [Oco].
 pub enum OcoIndex {
     /// Layout lights 1
diff --git a/insim/src/insim/pen.rs b/insim/src/insim/pen.rs
index 22c57e4..331ed22 100644
--- a/insim/src/insim/pen.rs
+++ b/insim/src/insim/pen.rs
@@ -7,6 +7,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Penalty types
 pub enum PenaltyInfo {
     /// None, or cleared
diff --git a/insim/src/insim/pit.rs b/insim/src/insim/pit.rs
index 8f999d9..a451182 100644
--- a/insim/src/insim/pit.rs
+++ b/insim/src/insim/pit.rs
@@ -114,6 +114,7 @@ pub struct Psf {
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Pit lane fact, or info. Used in [Pla].
 pub enum PitLaneFact {
     #[default]
diff --git a/insim/src/insim/racelaps.rs b/insim/src/insim/racelaps.rs
index ce5a7ea..11d1ded 100644
--- a/insim/src/insim/racelaps.rs
+++ b/insim/src/insim/racelaps.rs
@@ -5,6 +5,7 @@ use insim_core::binrw::{self, BinRead, BinWrite};
 /// Handles the rules around how RaceLaps are described within Insim automatically for you.
 #[derive(Debug, Default, Clone, Copy)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 pub enum RaceLaps {
     /// This is a practise session
     #[default]
diff --git a/insim/src/insim/small.rs b/insim/src/insim/small.rs
index fedd0ec..3537489 100644
--- a/insim/src/insim/small.rs
+++ b/insim/src/insim/small.rs
@@ -125,6 +125,7 @@ bitflags! {
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
+#[non_exhaustive]
 /// [Small] packet subtype.
 pub enum SmallType {
     /// Nothing!
diff --git a/insim/src/insim/ssh.rs b/insim/src/insim/ssh.rs
index 95cebb7..c40dde9 100644
--- a/insim/src/insim/ssh.rs
+++ b/insim/src/insim/ssh.rs
@@ -10,6 +10,7 @@ use crate::identifiers::RequestId;
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Errors occurred during a [Ssh] request.
 pub enum SshError {
     #[default]
diff --git a/insim/src/insim/sta.rs b/insim/src/insim/sta.rs
index 2295dcc..018fdc0 100644
--- a/insim/src/insim/sta.rs
+++ b/insim/src/insim/sta.rs
@@ -13,6 +13,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Game racing state
 pub enum RaceInProgress {
     /// No race in progress
diff --git a/insim/src/insim/tiny.rs b/insim/src/insim/tiny.rs
index 1e1f1da..86ad5c2 100644
--- a/insim/src/insim/tiny.rs
+++ b/insim/src/insim/tiny.rs
@@ -7,6 +7,7 @@ use crate::identifiers::RequestId;
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// [Tiny] Subtype
 pub enum TinyType {
     /// Keepalive request/response
@@ -96,6 +97,9 @@ pub enum TinyType {
 
     /// Request a Plh packet
     Plh = 28,
+
+    /// Request a Ipb packet
+    Ipb = 29,
 }
 
 #[binrw]
diff --git a/insim/src/insim/ttc.rs b/insim/src/insim/ttc.rs
index 1240d72..e161729 100644
--- a/insim/src/insim/ttc.rs
+++ b/insim/src/insim/ttc.rs
@@ -7,6 +7,7 @@ use crate::identifiers::{ConnectionId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// [Ttc] subtype.
 pub enum TtcType {
     /// Send Axm for the current layout editor selection
diff --git a/insim/src/insim/uco.rs b/insim/src/insim/uco.rs
index c648ba3..766fc64 100644
--- a/insim/src/insim/uco.rs
+++ b/insim/src/insim/uco.rs
@@ -13,6 +13,7 @@ use crate::identifiers::{PlayerId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 /// Action for a [Uco] packet.
 pub enum UcoAction {
     #[default]
diff --git a/insim/src/insim/vtn.rs b/insim/src/insim/vtn.rs
index 1749d1e..c0d2a11 100644
--- a/insim/src/insim/vtn.rs
+++ b/insim/src/insim/vtn.rs
@@ -8,6 +8,7 @@ use crate::identifiers::{ConnectionId, RequestId};
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[repr(u8)]
 #[brw(repr(u8))]
+#[non_exhaustive]
 pub enum VtnAction {
     /// No vote, or cancel vote
     #[default]
diff --git a/insim/src/packet.rs b/insim/src/packet.rs
index e843af5..24f1ac5 100644
--- a/insim/src/packet.rs
+++ b/insim/src/packet.rs
@@ -278,6 +278,10 @@ pub enum Packet {
     #[brw(magic = 66u8)]
     Plh(Plh),
 
+    /// Both - Set/receive player handicap
+    #[brw(magic = 67u8)]
+    Ipb(Ipb),
+
     /// Instruction - Ask the LFS World relay if we are an admin
     #[brw(magic = 250u8)]
     RelayArq(Arq),
diff --git a/insim_pth/Cargo.toml b/insim_pth/Cargo.toml
index ecf6818..1425a73 100644
--- a/insim_pth/Cargo.toml
+++ b/insim_pth/Cargo.toml
@@ -16,5 +16,5 @@ bench = false
 doctest = false
 
 [dependencies]
-insim_core = { path = "../insim_core", version = "1.1.1" }
+insim_core = { path = "../insim_core", version = "2.0.0" }
 thiserror = { workspace = true }
diff --git a/insim_smx/Cargo.toml b/insim_smx/Cargo.toml
index 9abc6b1..1812bbe 100644
--- a/insim_smx/Cargo.toml
+++ b/insim_smx/Cargo.toml
@@ -17,5 +17,5 @@ bench = false
 doctest = false
 
 [dependencies]
-insim_core = { path = "../insim_core", version = "1.1.1" }
+insim_core = { path = "../insim_core", version = "2.0.0" }
 thiserror = { workspace = true }