add GRE protocol

Author: jirivrany

flowapp/__about__.py

@@ -1,4 +1,4 @@
-__version__ = "1.2.0b1"
+__version__ = "1.2.0b2"
 __title__ = "ExaFS"
 __description__ = "Tool for creation, validation, and execution of ExaBGP messages."
 __author__ = "CESNET / Jiri Vrany, Petr Adamec, Josef Verich, Jakub Man"

flowapp/constants.py

@@ -35,9 +35,9 @@
 MAX_PORT = 65535
 MAX_PACKET = 9216
 
-IPV6_NEXT_HEADER = {"tcp": "tcp", "udp": "udp", "icmp": "58", "all": ""}
+IPV6_NEXT_HEADER = {"tcp": "tcp", "udp": "udp", "icmp": "58", "gre": "gre", "all": ""}
 
-IPV4_PROTOCOL = {"tcp": "tcp", "udp": "udp", "icmp": "icmp", "all": ""}
+IPV4_PROTOCOL = {"tcp": "tcp", "udp": "udp", "icmp": "icmp", "gre": "gre", "all": ""}
 
 IPV4_FRAGMENT = {
     "dont": "dont-fragment",