diff --git a/src/iface/interface/ipv6.rs b/src/iface/interface/ipv6.rs
index 5be16304a..0ee15a98d 100644
--- a/src/iface/interface/ipv6.rs
+++ b/src/iface/interface/ipv6.rs
@@ -315,16 +315,20 @@ impl InterfaceInner {
                             return HopByHopResponse::Discard(None);
                         }
                         Ipv6OptionFailureType::DiscardSendAll => {
-                            return HopByHopResponse::Discard(
-                                self.param_problem(ipv6_repr, ip_payload),
-                            );
+                            return HopByHopResponse::Discard(self.icmpv6_problem(
+                                ipv6_repr,
+                                ip_payload,
+                                Icmpv6ParamProblem::UnrecognizedOption,
+                            ));
                         }
                         Ipv6OptionFailureType::DiscardSendUnicast
                             if !ipv6_repr.dst_addr.is_multicast() =>
                         {
-                            return HopByHopResponse::Discard(
-                                self.param_problem(ipv6_repr, ip_payload),
-                            );
+                            return HopByHopResponse::Discard(self.icmpv6_problem(
+                                ipv6_repr,
+                                ip_payload,
+                                Icmpv6ParamProblem::UnrecognizedOption,
+                            ));
                         }
                         _ => unreachable!(),
                     }
@@ -373,7 +377,11 @@ impl InterfaceInner {
             #[cfg(feature = "socket-raw")]
             _ if handled_by_raw_socket => None,
 
-            _ => self.param_problem(ipv6_repr, ip_payload),
+            _ => self.icmpv6_problem(
+                ipv6_repr,
+                ip_payload,
+                Icmpv6ParamProblem::UnrecognizedNxtHdr,
+            ),
         }
     }
 
@@ -711,17 +719,18 @@ impl InterfaceInner {
         Some(Packet::Ipv6(p))
     }
 
-    fn param_problem<'frame>(
+    fn icmpv6_problem<'frame>(
         &self,
         ipv6_repr: Ipv6Repr,
         ip_payload: &'frame [u8],
+        reason: Icmpv6ParamProblem,
     ) -> Option<Packet<'frame>> {
         let payload_len =
             icmp_reply_payload_len(ip_payload.len(), IPV6_MIN_MTU, ipv6_repr.buffer_len());
         self.icmpv6_reply(
             ipv6_repr,
             Icmpv6Repr::ParamProblem {
-                reason: Icmpv6ParamProblem::UnrecognizedOption,
+                reason,
                 pointer: ipv6_repr.buffer_len() as u32,
                 header: ipv6_repr,
                 data: &ip_payload[0..payload_len],
diff --git a/src/iface/interface/mod.rs b/src/iface/interface/mod.rs
index 7f9f92c2a..08a3d8f2d 100644
--- a/src/iface/interface/mod.rs
+++ b/src/iface/interface/mod.rs
@@ -1030,7 +1030,7 @@ impl InterfaceInner {
                 return Err(DispatchError::NeighborPending);
             }
             NeighborAnswer::NotFound => match (src_addr, dst_addr) {
-                #[cfg(feature = "proto-ipv4")]
+                #[cfg(all(feature = "medium-ethernet", feature = "proto-ipv4"))]
                 (&IpAddress::Ipv4(src_addr), IpAddress::Ipv4(dst_addr)) => {
                     net_debug!(
                         "address {} not in neighbor cache, sending ARP request",
diff --git a/src/iface/interface/sixlowpan.rs b/src/iface/interface/sixlowpan.rs
index 7d619fc1a..585b139fc 100644
--- a/src/iface/interface/sixlowpan.rs
+++ b/src/iface/interface/sixlowpan.rs
@@ -567,6 +567,7 @@ pub enum SixlowpanPayload<'p> {
     Icmpv6(&'p Icmpv6Repr<'p>),
     #[cfg(any(feature = "socket-udp", feature = "socket-dns"))]
     Udp(UdpRepr, &'p [u8], Option<u16>),
+    #[cfg(feature = "proto-rpl")]
     Raw(&'p [u8]),
 }
 
@@ -635,6 +636,7 @@ impl<'p> PacketSixlowpan<'p> {
 
                 SixlowpanPayload::Udp(*udp_repr, payload, None)
             }
+            #[cfg(feature = "proto-rpl")]
             IpPayload::Raw(raw) => {
                 match last_header {
                     IpProtocol::Udp => {
@@ -699,6 +701,7 @@ impl<'p> PacketSixlowpan<'p> {
             SixlowpanPayload::Udp(udp_repr, payload, _) => {
                 len + SixlowpanUdpNhcRepr(udp_repr).header_len() + payload.len()
             }
+            #[cfg(feature = "proto-rpl")]
             SixlowpanPayload::Raw(payload) => len + payload.len(),
         }
     }
@@ -776,6 +779,7 @@ impl<'p> PacketSixlowpan<'p> {
                     udp_packet.set_checksum(checksum);
                 }
             }
+            #[cfg(feature = "proto-rpl")]
             SixlowpanPayload::Raw(payload) => buffer[..payload.len()].copy_from_slice(payload),
         }
     }
diff --git a/src/iface/packet.rs b/src/iface/packet.rs
index 21cf1f813..df9c941c8 100644
--- a/src/iface/packet.rs
+++ b/src/iface/packet.rs
@@ -98,7 +98,7 @@ impl<'p> Packet<'p> {
                     &caps.checksum,
                 )
             }
-            #[cfg(feature = "socket-raw")]
+            #[cfg(any(feature = "socket-raw", feature = "proto-rpl"))]
             IpPayload::Raw(raw_packet) => payload.copy_from_slice(raw_packet),
             #[cfg(any(feature = "socket-udp", feature = "socket-dns"))]
             IpPayload::Udp(udp_repr, inner_payload) => udp_repr.emit(
@@ -171,6 +171,7 @@ pub(crate) struct PacketV6<'p> {
     payload: IpPayload<'p>,
 }
 
+#[cfg(feature = "proto-ipv6")]
 impl<'p> PacketV6<'p> {
     pub(crate) fn new(header: Ipv6Repr, payload: IpPayload<'p>) -> Self {
         Self {
@@ -193,6 +194,7 @@ impl<'p> PacketV6<'p> {
         &mut self.header
     }
 
+    #[cfg(feature = "proto-ipv6-hbh")]
     pub(crate) fn hop_by_hop(&self) -> Option<(IpProtocol, &Ipv6HopByHopRepr<'p>)> {
         #[cfg(feature = "proto-ipv6-hbh")]
         {
@@ -206,6 +208,7 @@ impl<'p> PacketV6<'p> {
         }
     }
 
+    #[cfg(feature = "proto-ipv6-hbh")]
     pub(crate) fn add_hop_by_hop(&mut self, repr: Ipv6HopByHopRepr<'p>) {
         self.header.payload_len += 2 + repr.buffer_len();
         let next_header = self.header.next_header;
@@ -213,6 +216,7 @@ impl<'p> PacketV6<'p> {
         self.hop_by_hop = Some((next_header, repr));
     }
 
+    #[cfg(feature = "proto-ipv6-routing")]
     pub(crate) fn routing(&self) -> Option<(IpProtocol, &Ipv6RoutingRepr)> {
         #[cfg(feature = "proto-ipv6-routing")]
         {
@@ -226,6 +230,7 @@ impl<'p> PacketV6<'p> {
         }
     }
 
+    #[cfg(feature = "proto-ipv6-routing")]
     pub(crate) fn add_routing(&mut self, repr: Ipv6RoutingRepr) {
         self.header.payload_len += 2 + repr.buffer_len();
         let mut next_header = self.header.next_header;
@@ -254,7 +259,7 @@ pub(crate) enum IpPayload<'p> {
     Igmp(IgmpRepr),
     #[cfg(feature = "proto-ipv6")]
     Icmpv6(Icmpv6Repr<'p>),
-    #[cfg(feature = "socket-raw")]
+    #[cfg(any(feature = "socket-raw", feature = "proto-rpl"))]
     Raw(&'p [u8]),
     #[cfg(any(feature = "socket-udp", feature = "socket-dns"))]
     Udp(UdpRepr, &'p [u8]),