1*05b00f60SXin Li 1 05:27:12.808464432 30:30:30:30:30:30 > 30:30:30:30:30:30, ethertype Unknown (0x3030), length 262144: 2*05b00f60SXin Li 0x0000: 3030 3030 3030 3030 3030 3030 3030 3030 0000000000000000 3*05b00f60SXin Li 0x0010: 3030 3030 3030 3030 3030 3030 3030 3030 0000000000000000 4*05b00f60SXin Li 0x0020: 3030 00 5*05b00f60SXin Li 2 05:27:12.808464432 IP (tos 0x30, ttl 48, id 12336, offset 0, flags [none], proto GRE (47), length 12336, bad cksum 3030 (->697f)!) 6*05b00f60SXin Li 48.48.48.48 > 48.48.48.48: GREv0, Flags [checksum present, routing present], sum 0x3030, off 0x3030, (rtaf=0x3030) [|gre] 7