--- dhcp6c_script.c.patched	2025-03-26 18:11:52.914835315 -0700
+++ dhcp6c_script.c	2025-03-26 18:26:10.503421359 -0700
@@ -71,6 +71,7 @@
 static char nispname_str[] = "new_nisp_name";
 static char bcmcsserver_str[] = "new_bcmcs_servers";
 static char bcmcsname_str[] = "new_bcmcs_name";
+static char iapd_str[] = "new_iapd";
 
 int
 client6_script(scriptpath, state, optinfo)
@@ -83,9 +84,10 @@
 	int nisservers, nisnamelen;
 	int nispservers, nispnamelen;
 	int bcmcsservers, bcmcsnamelen;
+	int iapdservers;
 	char **envp, *s;
 	char reason[] = "REASON=NBI";
-	struct dhcp6_listval *v;
+	struct dhcp6_listval *v, *siav;
 	pid_t pid, wpid;
 
 	/* if a script is not specified, do nothing */
@@ -104,6 +106,7 @@
 	nispnamelen = 0;
 	bcmcsservers = 0;
 	bcmcsnamelen = 0;
+	iapdservers = 0;
 	envc = 2;     /* we at least include the reason and the terminator */
 
 	/* count the number of variables */
@@ -115,6 +118,9 @@
 		dnsnamelen += v->val_vbuf.dv_len;
 	}
 	envc += dnsnamelen ? 1 : 0;
+	for (v = TAILQ_FIRST(&optinfo->iapd_list); v; v = TAILQ_NEXT(v, link))
+		iapdservers++;
+	envc += iapdservers ? 1 : 0;
 	for (v = TAILQ_FIRST(&optinfo->ntp_list); v; v = TAILQ_NEXT(v, link))
 		ntpservers++;
 	envc += ntpservers ? 1 : 0;
@@ -194,6 +200,35 @@
 			strlcat(s, " ", elen);
 		}
 	}
+	if (iapdservers) {
+		elen = sizeof (iapd_str) +
+		    (INET6_ADDRSTRLEN + 1) * iapdservers + 1;
+		if ((s = envp[i++] = malloc(elen)) == NULL) {
+			debug_printf(LOG_NOTICE, FNAME,
+			    "failed to allocate strings for PD");
+			ret = -1;
+			goto clean;
+		}
+		memset(s, 0, elen);
+		snprintf(s, elen, "%s=", iapd_str);
+		for (v = TAILQ_FIRST(&optinfo->iapd_list); v;
+		    v = TAILQ_NEXT(v, link)) {
+			char *addr,*addr2 ;
+			for (siav = TAILQ_FIRST(&v->sublist); siav;
+			  siav = TAILQ_NEXT(siav, link)) {
+				switch (siav->type) {
+				case DHCP6_LISTVAL_PREFIX6:
+					addr = in6addr2str(&siav->val_prefix6.addr, 0) ;
+					strlcat(s, addr, elen);
+					sprintf(addr,"/%d,pltime=%lu,vltime=%lu",
+					  siav->uv.uv_prefix6.plen, siav->uv.uv_prefix6.pltime,
+					  siav->uv.uv_prefix6.vltime) ;
+					strlcat(s, addr, elen);
+					strlcat(s, " ", elen);
+				}
+			}
+		}
+	}
 	if (ntpservers) {
 		elen = sizeof (ntpserver_str) +
 		    (INET6_ADDRSTRLEN + 1) * ntpservers + 1;