snap.patch

Index: lib/packetfu/packetfu/packet.rb
===================================================================
--- lib/packetfu/packetfu/packet.rb	(revision 15118)
+++ lib/packetfu/packetfu/packet.rb	(working copy)
@@ -514,7 +514,7 @@
 		end
 
 		def respond_to?(sym, include_private = false)
-			if sym.to_s =~ /^(invalid|eth|arp|ip|icmp|udp|hsrp|tcp|ipv6)_/
+			if sym.to_s =~ /^(invalid|eth|arp|ip|icmp|udp|hsrp|tcp|ipv6|snap)_/
 				self.instance_variable_get("@#{$1}_header").respond_to? sym
 			elsif sym.to_s =~ /^is_([a-zA-Z0-9]+)\?/
 				if PacketFu.packet_prefixes.index($1)
Index: lib/packetfu/packetfu/protos/eth.rb
===================================================================
--- lib/packetfu/packetfu/protos/eth.rb	(revision 15118)
+++ lib/packetfu/packetfu/protos/eth.rb	(working copy)
@@ -181,6 +181,9 @@
 			self[:eth_dst].read str[0,6]
 			self[:eth_src].read str[6,6]
 			self[:eth_proto].read str[12,2]
+			if self[:eth_proto].to_i < 1500
+				self[:eth_proto] = nil
+			end
 			self[:body].read str[14,str.size]
 			self
 		end
@@ -266,7 +269,7 @@
 			valid_eth_types = [0x0800, 0x0806, 0x86dd]
 			return false unless str.size >= 14
 			type = str[12,2].unpack("n").first rescue nil
-			return false unless valid_eth_types.include? type
+			return false unless valid_eth_types.include? type or type < 1500
 			true
 		end