diff --git a/doc/configuration.txt b/doc/configuration.txt
index 8d2fdde21..e7678a29a 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -16742,6 +16742,22 @@ send-proxy-v2
   of this version of the protocol. See also the "no-send-proxy-v2" option of
   this section and send-proxy" option of the "bind" keyword.
 
+set-proxy-v2-tlv-fmt(<id>) <fmt>
+  The "set-proxy-v2-tlv-fmt" parameter is used to send arbitrary PROXY protocol
+  version 2 TLVs. For the type (<id>) range of the defined TLV type please refer
+  to section 2.2.8. of the proxy protocol specification. However, the value can
+  be chosen freely as long as it does not exceed the maximum length of 65,535
+  bytes. It can also be used for forwarding TLVs by using the fetch "fc_pp_tlv"
+  to retrieve a received TLV from the frontend. It may be used as a server or
+  a default-server option. It must be used in combination with send-proxy-v2
+  such that PPv2 TLVs are actually sent out.
+
+  Example:
+  server srv1 192.168.1.1:80 send-proxy-v2 set-proxy-v2-tlv-fmt(0x20) %[fc_pp_tlv(0x20)]
+
+  In this case, we fetch the TLV with the type 0x20 as a string and set as the value
+  of a newly created TLV that also has the type 0x20.
+
 proxy-v2-options <option>[,<option>]*
   The "proxy-v2-options" parameter add options to send in PROXY protocol
   version 2 when "send-proxy-v2" is used. Options available are:
diff --git a/reg-tests/connection/proxy_protocol_send_generic.vtc b/reg-tests/connection/proxy_protocol_send_generic.vtc
new file mode 100644
index 000000000..f61bcae73
--- /dev/null
+++ b/reg-tests/connection/proxy_protocol_send_generic.vtc
@@ -0,0 +1,74 @@
+varnishtest "Check that generic TLV IDs are sent properly"
+
+#REQUIRE_VERSION=2.2
+
+feature ignore_unknown_macro
+
+haproxy h1 -conf {
+    defaults
+        mode http
+        log global
+
+        timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
+        timeout client  "${HAPROXY_TEST_TIMEOUT-5s}"
+        timeout server  "${HAPROXY_TEST_TIMEOUT-5s}"
+
+    listen sender
+        bind "fd@${feS}"
+        server example ${h1_feR_addr}:${h1_feR_port} send-proxy-v2 set-proxy-v2-tlv-fmt(0xE1) %[str("foo")] set-proxy-v2-tlv-fmt(0xE2)
+
+    listen receiver
+        bind "fd@${feR}" accept-proxy
+
+        # Check that the TLV value is set in the backend.
+        http-request set-var(txn.custom_tlv_a) fc_pp_tlv(0xE1)
+        http-after-response set-header proxy_custom_tlv_a %[var(txn.custom_tlv_a)]
+
+        # Check that TLVs without an value are sent out.
+        http-request set-var(txn.custom_tlv_b) fc_pp_tlv(0xE2)
+        http-after-response set-header proxy_custom_tlv_b %[var(txn.custom_tlv_b)]
+
+        # Note that we do not check for an invalid TLV ID as that would result in an
+        # parser error anway.
+
+        http-request return status 200
+} -start
+
+
+client c1 -connect ${h1_feS_sock} {
+    txreq -url "/"
+    rxresp
+    expect resp.http.proxy_custom_tlv_a == "foo"
+    expect resp.http.proxy_custom_tlv_b == ""
+} -run
+
+# Ensure that we achieve the same via a default-server.
+haproxy h2 -conf {
+    defaults
+        mode http
+        log global
+
+        timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
+        timeout client  "${HAPROXY_TEST_TIMEOUT-5s}"
+        timeout server  "${HAPROXY_TEST_TIMEOUT-5s}"
+
+    listen sender
+        bind "fd@${feS}"
+        default-server send-proxy-v2 set-proxy-v2-tlv-fmt(0xE1) %[str("bar")]
+        server example ${h1_feR_addr}:${h1_feR_port}
+
+    listen receiver
+        bind "fd@${feR}" accept-proxy
+
+        http-request set-var(txn.custom_tlv_a) fc_pp_tlv(0xE1)
+        http-after-response set-header proxy_custom_tlv_a %[var(txn.custom_tlv_a)]
+
+        http-request return status 200
+} -start
+
+
+client c2 -connect ${h2_feS_sock} {
+    txreq -url "/"
+    rxresp
+    expect resp.http.proxy_custom_tlv_a == "bar"
+} -run
diff --git a/src/connection.c b/src/connection.c
index 59893fbb5..3a13c2542 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -1927,10 +1927,11 @@ static int make_proxy_line_v2(char *buf, int buf_len, struct server *srv, struct
 	int ret = 0;
 	struct proxy_hdr_v2 *hdr = (struct proxy_hdr_v2 *)buf;
 	struct sockaddr_storage null_addr = { .ss_family = 0 };
+	struct srv_pp_tlv_list *srv_tlv = NULL;
 	const struct sockaddr_storage *src = &null_addr;
 	const struct sockaddr_storage *dst = &null_addr;
-	const char *value;
-	int value_len;
+	const char *value = "";
+	int value_len = 0;
 
 	if (buf_len < PP2_HEADER_LEN)
 		return 0;
@@ -2000,6 +2001,37 @@ static int make_proxy_line_v2(char *buf, int buf_len, struct server *srv, struct
 		}
 	}
 
+	if (strm) {
+		struct buffer *replace = NULL;
+
+		list_for_each_entry(srv_tlv, &srv->pp_tlvs, list) {
+			replace = NULL;
+
+			/* Users will always need to provide a value, in case of forwarding, they should use fc_pp_tlv.
+			 * for generic types. Otherwise, we will send an empty TLV.
+			 */
+			if (!LIST_ISEMPTY(&srv_tlv->fmt)) {
+				replace = alloc_trash_chunk();
+				if (unlikely(!replace))
+					return 0;
+
+				replace->data = build_logline(strm, replace->area, replace->size, &srv_tlv->fmt);
+
+				if (unlikely((buf_len - ret) < sizeof(struct tlv))) {
+					free_trash_chunk(replace);
+					return 0;
+				}
+				ret += make_tlv(&buf[ret], (buf_len - ret), srv_tlv->type, replace->data, replace->area);
+				free_trash_chunk(replace);
+			}
+			else {
+				/* Create empty TLV as no value was specified */
+				ret += make_tlv(&buf[ret], (buf_len - ret), srv_tlv->type, 0, NULL);
+			}
+		}
+	}
+
+	/* Handle predefined TLVs as usual */
 	if (srv->pp_opts & SRV_PP_V2_CRC32C) {
 		uint32_t zero_crc32c = 0;