130:30:30:30:30:30 > 30:30:30:30:30:30, ethertype Unknown (0x3030), length 808464432: 2 0x0000: 3030 3030 3030 3030 3030 3030 3030 3030 0000000000000000 3 0x0010: 3030 3030 3030 3030 3030 3030 3030 3030 0000000000000000 4 0x0020: 3030 00 5IP (tos 0x30, ttl 48, id 12336, offset 0, flags [none], proto GRE (47), length 12336, bad cksum 3030 (->697f)!) 6 48.48.48.48 > 48.48.48.48: GREv0, Flags [checksum present, routing present], sum 0x3030, off 0x3030, (rtaf=0x3030)[|gre] 7