diff --git a/kernel/include/net/arp_cache.hpp b/kernel/include/net/arp_cache.hpp
index 353bf56a..40a22995 100644
--- a/kernel/include/net/arp_cache.hpp
+++ b/kernel/include/net/arp_cache.hpp
@@ -22,7 +22,20 @@ void update_cache(uint64_t mac, network::ip::address ip);
 bool is_mac_cached(uint64_t mac);
 bool is_ip_cached(network::ip::address ip);
 
+/*!
+ * \brief Returns the IP address of the given MAC address.
+ * The address must be in cache.
+ * \param ip The MAC address to look for in the cache
+ * \return The IP address of the MAC address
+ */
 network::ip::address get_ip(uint64_t mac);
+
+/*!
+ * \brief Returns the MAC address of the given IP address.
+ * The address must be in cache.
+ * \param ip The IP address to look for in the cache
+ * \return The MAC address of the IP address
+ */
 uint64_t get_mac(network::ip::address ip);
 
 uint64_t get_mac_force(network::interface_descriptor& interface, network::ip::address ip);