diff --git a/archiso2dual/isolinux.cfg b/archiso2dual/isolinux.cfg
index 5ed26e1..6dd4bbb 100644
--- a/archiso2dual/isolinux.cfg
+++ b/archiso2dual/isolinux.cfg
@@ -39,7 +39,8 @@ ENDTEXT
 MENU LABEL Boot Arch Linux (i686)
 KERNEL /boot/i686/vmlinuz26
 APPEND initrd=/boot/i686/archiso.img archisolabel=XXX tmpfs_size=75% locale=en_US.UTF-8
-IPAPPEND 0
+# Next line should be uncommented when prepare enviroment to boot from PXE.
+#IPAPPEND 3
 
 LABEL arch64
 TEXT HELP
@@ -49,7 +50,8 @@ ENDTEXT
 MENU LABEL Boot Arch Linux (x86_64)
 KERNEL /boot/x86_64/vmlinuz26
 APPEND initrd=/boot/x86_64/archiso.img archisolabel=XXX tmpfs_size=75% locale=en_US.UTF-8
-IPAPPEND 0
+# Next line should be uncommented when prepare enviroment to boot from PXE.
+#IPAPPEND 3
 
 LABEL existing
 TEXT HELP
diff --git a/configs/syslinux-iso/boot-files/isolinux/isolinux.cfg b/configs/syslinux-iso/boot-files/isolinux/isolinux.cfg
index 2d604ba..dd9ef86 100644
--- a/configs/syslinux-iso/boot-files/isolinux/isolinux.cfg
+++ b/configs/syslinux-iso/boot-files/isolinux/isolinux.cfg
@@ -39,7 +39,8 @@ ENDTEXT
 MENU LABEL Boot Arch Linux
 KERNEL /boot/vmlinuz26
 APPEND initrd=/boot/archiso.img archisolabel=XXX tmpfs_size=75% locale=en_US.UTF-8
-IPAPPEND 0
+# Next line should be uncommented when prepare enviroment to boot from PXE.
+#IPAPPEND 3
 
 LABEL existing
 TEXT HELP