-IP0 (tos 0x30, ttl 48, id 12336, offset 0, flags [none], proto GRE (47), length 12336, options (unknown 48 [bad length 48]), bad cksum 3030 (->855e)!)
- 48.48.48.48 > 48.48.48.48: GREv0, Flags [checksum present, routing present, sequence# present, source routing present][|gre]