ICMPv4AddressMaskRequestTypeNetwork Packet Object Schema

Address Mask Request informational message; ICMP type=17.

Fields

Field Name Type Description
Address_Mask_Request0..1 boolean

This is the only possible subtype of an address mask request message (code=0).
Address_Mask0..1 AddressObjectType

The address mask can be set to 0 in an address mask request message (as opposed to an address mask reply message, in which case it should be set to the subnet mask).