diff --git a/Kernel/Net/E1000NetworkAdapter.cpp b/Kernel/Net/E1000NetworkAdapter.cpp
index b0f8ec0178..568715ecce 100644
--- a/Kernel/Net/E1000NetworkAdapter.cpp
+++ b/Kernel/Net/E1000NetworkAdapter.cpp
@@ -466,4 +466,29 @@ void E1000NetworkAdapter::receive()
     }
 }
 
+i32 E1000NetworkAdapter::link_speed()
+{
+    if (!link_up())
+        return NetworkAdapter::LINKSPEED_INVALID;
+
+    u32 speed = in32(REG_STATUS) & STATUS_SPEED;
+    switch (speed) {
+    case STATUS_SPEED_10MB:
+        return 10;
+    case STATUS_SPEED_100MB:
+        return 100;
+    case STATUS_SPEED_1000MB1:
+    case STATUS_SPEED_1000MB2:
+        return 1000;
+    default:
+        return NetworkAdapter::LINKSPEED_INVALID;
+    }
+}
+
+bool E1000NetworkAdapter::link_full_duplex()
+{
+    u32 status = in32(REG_STATUS);
+    return !!(status & STATUS_FD);
+}
+
 }
diff --git a/Kernel/Net/E1000NetworkAdapter.h b/Kernel/Net/E1000NetworkAdapter.h
index 157b929ffa..2475d4d144 100644
--- a/Kernel/Net/E1000NetworkAdapter.h
+++ b/Kernel/Net/E1000NetworkAdapter.h
@@ -27,6 +27,8 @@ public:
 
     virtual void send_raw(ReadonlyBytes) override;
     virtual bool link_up() override;
+    virtual i32 link_speed() override;
+    virtual bool link_full_duplex() override;
 
     virtual StringView purpose() const override { return class_name(); }
 
diff --git a/Kernel/Net/LoopbackAdapter.h b/Kernel/Net/LoopbackAdapter.h
index a30538c73e..fb75abb3c0 100644
--- a/Kernel/Net/LoopbackAdapter.h
+++ b/Kernel/Net/LoopbackAdapter.h
@@ -23,6 +23,8 @@ public:
     virtual void send_raw(ReadonlyBytes) override;
     virtual StringView class_name() const override { return "LoopbackAdapter"; }
     virtual bool link_up() override { return true; }
+    virtual bool link_full_duplex() override { return true; }
+    virtual int link_speed() override { return 1000; }
 };
 
 }
diff --git a/Kernel/Net/NE2000NetworkAdapter.h b/Kernel/Net/NE2000NetworkAdapter.h
index 2fda43ccfc..01f7f53b09 100644
--- a/Kernel/Net/NE2000NetworkAdapter.h
+++ b/Kernel/Net/NE2000NetworkAdapter.h
@@ -29,6 +29,12 @@ public:
         // just assume that it's up.
         return true;
     }
+    virtual i32 link_speed()
+    {
+        // Can only do 10mbit..
+        return 10;
+    }
+    virtual bool link_full_duplex() { return true; }
 
     virtual StringView purpose() const override { return class_name(); }
 
diff --git a/Kernel/Net/NetworkAdapter.h b/Kernel/Net/NetworkAdapter.h
index 2a6b192f7d..ee7c82235d 100644
--- a/Kernel/Net/NetworkAdapter.h
+++ b/Kernel/Net/NetworkAdapter.h
@@ -42,6 +42,8 @@ struct PacketWithTimestamp : public RefCounted<PacketWithTimestamp> {
 class NetworkAdapter : public RefCounted<NetworkAdapter>
     , public Weakable<NetworkAdapter> {
 public:
+    static constexpr i32 LINKSPEED_INVALID = -1;
+
     virtual ~NetworkAdapter();
 
     virtual StringView class_name() const = 0;
@@ -53,6 +55,12 @@ public:
     IPv4Address ipv4_broadcast() const { return IPv4Address { (m_ipv4_address.to_u32() & m_ipv4_netmask.to_u32()) | ~m_ipv4_netmask.to_u32() }; }
     IPv4Address ipv4_gateway() const { return m_ipv4_gateway; }
     virtual bool link_up() { return false; }
+    virtual i32 link_speed()
+    {
+        // In Mbit/sec.
+        return LINKSPEED_INVALID;
+    }
+    virtual bool link_full_duplex() { return false; }
 
     void set_ipv4_address(const IPv4Address&);
     void set_ipv4_netmask(const IPv4Address&);
diff --git a/Kernel/Net/RTL8139NetworkAdapter.cpp b/Kernel/Net/RTL8139NetworkAdapter.cpp
index 567948d1ab..6348651333 100644
--- a/Kernel/Net/RTL8139NetworkAdapter.cpp
+++ b/Kernel/Net/RTL8139NetworkAdapter.cpp
@@ -29,6 +29,7 @@ namespace Kernel {
 #define REG_CONFIG1 0x52
 #define REG_MSR 0x58
 #define REG_BMCR 0x62
+#define REG_ANLPAR 0x68
 
 #define TX_STATUS_OWN 0x2000
 #define TX_STATUS_THRESHOLD_MAX 0x3F0000
@@ -84,12 +85,16 @@ namespace Kernel {
 #define RXCFG_FTH_NONE 0xE000
 
 #define MSR_LINKB 0x02
+#define MSR_SPEED_10 0x08
 #define MSR_RX_FLOW_CONTROL_ENABLE 0x40
 
 #define BMCR_SPEED 0x2000
 #define BMCR_AUTO_NEGOTIATE 0x1000
 #define BMCR_DUPLEX 0x0100
 
+#define ANLPAR_10FD 0x0040
+#define ANLPAR_TXFD 0x0100
+
 #define RX_MULTICAST 0x8000
 #define RX_PHYSICAL_MATCH 0x4000
 #define RX_BROADCAST 0x2000
@@ -366,4 +371,22 @@ u32 RTL8139NetworkAdapter::in32(u16 address)
     return m_io_base.offset(address).in<u32>();
 }
 
+bool RTL8139NetworkAdapter::link_full_duplex()
+{
+    // Note: this code assumes auto-negotiation is enabled (which is now always the case) and
+    // bases the duplex state on the link partner advertisement.
+    // If non-auto-negotiation is ever implemented this should be changed.
+    u16 anlpar = in16(REG_ANLPAR);
+    return !!(anlpar & (ANLPAR_TXFD | ANLPAR_10FD));
+}
+
+i32 RTL8139NetworkAdapter::link_speed()
+{
+    if (!link_up())
+        return NetworkAdapter::LINKSPEED_INVALID;
+
+    u16 msr = in16(REG_MSR);
+    return msr & MSR_SPEED_10 ? 10 : 100;
+}
+
 }
diff --git a/Kernel/Net/RTL8139NetworkAdapter.h b/Kernel/Net/RTL8139NetworkAdapter.h
index 164fbb0c77..d42e6a505e 100644
--- a/Kernel/Net/RTL8139NetworkAdapter.h
+++ b/Kernel/Net/RTL8139NetworkAdapter.h
@@ -26,6 +26,8 @@ public:
 
     virtual void send_raw(ReadonlyBytes) override;
     virtual bool link_up() override { return m_link_up; }
+    virtual i32 link_speed() override;
+    virtual bool link_full_duplex() override;
 
     virtual StringView purpose() const override { return class_name(); }
 
diff --git a/Kernel/Net/RTL8168NetworkAdapter.cpp b/Kernel/Net/RTL8168NetworkAdapter.cpp
index a1d6c7f763..6563e6555f 100644
--- a/Kernel/Net/RTL8168NetworkAdapter.cpp
+++ b/Kernel/Net/RTL8168NetworkAdapter.cpp
@@ -172,6 +172,11 @@ namespace Kernel {
 
 #define MISC2_PFM_D3COLD_ENABLE 0x40
 
+#define PHYSTATUS_FULLDUP 0x01
+#define PHYSTATUS_1000MF 0x10
+#define PHYSTATUS_100M 0x08
+#define PHYSTATUS_10M 0x04
+
 #define TX_BUFFER_SIZE 0x1FF8
 #define RX_BUFFER_SIZE 0x1FF8 // FIXME: this should be increased (0x3FFF)
 
@@ -1631,4 +1636,27 @@ String RTL8168NetworkAdapter::possible_device_name()
     }
     VERIFY_NOT_REACHED();
 }
+
+bool RTL8168NetworkAdapter::link_full_duplex()
+{
+    u8 phystatus = in8(REG_PHYSTATUS);
+    return !!(phystatus & (PHYSTATUS_FULLDUP | PHYSTATUS_1000MF));
+}
+
+i32 RTL8168NetworkAdapter::link_speed()
+{
+    if (!link_up())
+        return NetworkAdapter::LINKSPEED_INVALID;
+
+    u8 phystatus = in8(REG_PHYSTATUS);
+    if (phystatus & PHYSTATUS_1000MF)
+        return 1000;
+    if (phystatus & PHYSTATUS_100M)
+        return 100;
+    if (phystatus & PHYSTATUS_10M)
+        return 10;
+
+    return NetworkAdapter::LINKSPEED_INVALID;
+}
+
 }
diff --git a/Kernel/Net/RTL8168NetworkAdapter.h b/Kernel/Net/RTL8168NetworkAdapter.h
index 0066e8d23b..ae71976fc9 100644
--- a/Kernel/Net/RTL8168NetworkAdapter.h
+++ b/Kernel/Net/RTL8168NetworkAdapter.h
@@ -26,6 +26,8 @@ public:
 
     virtual void send_raw(ReadonlyBytes) override;
     virtual bool link_up() override { return m_link_up; }
+    virtual bool link_full_duplex() override;
+    virtual i32 link_speed() override;
 
     virtual StringView purpose() const override { return class_name(); }