Hi, There is a TypeError exception with Ryu parsing fragmented ICMPv4 packets of a certain length. The attached program "ryu_icmpv4_test.py" demonstrates the failure. Note that the packet data is for the second fragment of a large ICMP echo.
The file "ryu_icmpv4.patch" contains a superficial patch for this issue. It looks like Ryu attempts to parse the higher layers of an IPv4 packet even when the IP fragment offset is > 0. This is a separate issue that I did not change. Regards, -Bill
import binascii from ryu.lib.packet.packet import Packet data = '0e00000000010ac2bb0242968100006408004500001803c000b94001610a0a0000010a6400fec0c1c2c3' result = Packet(binascii.unhexlify(data)) print(result)
ryu_icmpv4.patch
Description: Binary data
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