Draytek 2130 manual ICMP Code Filter, ICMP Code Value, Ip Ttl, IP Fragment

ICMP Code Filter Specify the ICMP code filter for this ACE.

	Any: No ICMP code filter is specified (ICMP code filter
	status is "don't-care").
	Specific: If you want to filter a specific ICMP code filter
	with this ACE, you can enter a specific ICMP code value.
	A field for entering an ICMP code value appears.
ICMP Code Value	If you choose Specific as ICMP Code Filter, you have to
	type the ICMP Type Value manually. The allowed range is
	0 to 255. A frame meeting this ACE matches this ICMP
	value.

zChoose IPv4 as the Frame Type. You will see IP Parameters on the bottom of the page. If you choose UDP as IP Protocol Filter, you will get the page as the following:

IP TTL Specify the Time-to-Live settings for this ACE.

	Zero: IPv4 frames with a Time-to-Live field greater than
	zero must not be able to match this entry.
	Non-zero:IPv4 frames with a Time-to-Live field greater
	than zero must be able to match this entry.
	Any: Any value is allowed.
IP Fragment	Specify the fragment offset settings for this ACE. This
	involves the settings for the More Fragments (MF) bit and
	the Fragment Offset (FRAG OFFSET) field for an IPv4
	frame.

No: IPv4 frames where the MF bit is set or the FRAG OFFSET field is greater than zero must not be able to match this entry.

128 Vigor2130 Series User’s Guide