1 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto GRE (47), length 54) 2 253.120.2.55 > 192.168.1.1: GREv0, Flags [none], length 34 3 IS-IS, length 30 4 L1 LSP, hlen: 27, v: 1, pdu-v: 1, sys-id-len: 6 (6), max-area: 7 (7) 5 lsp-id: ffff.ffff.ffff.ff-ff, seq: 0xffffffff, lifetime: 65535s 6 chksum: 0xffff (incorrect should be 0x0fe8), PDU length: 65535, Flags: [ L1 IS ] 7 IS Neighbor(s) (variable length) TLV #7, length: 0 [|isis] 8 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto GRE (47), length 54) 9 234.176.145.73 > 192.168.1.1: GREv0, Flags [none], length 34 10 IS-IS, length 30 11 L1 LSP, hlen: 27, v: 1, pdu-v: 1, sys-id-len: 6 (6), max-area: 7 (7) 12 lsp-id: ffff.ffff.ffff.ff-ff, seq: 0xffffffff, lifetime: 65535s 13 chksum: 0xffff (incorrect should be 0x0fe8), PDU length: 65535, Flags: [ L1 IS ] 14 IS Neighbor(s) (variable length) TLV #7, length: 0 [|isis] 15 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto GRE (47), length 54) 16 225.91.211.91 > 192.168.1.1: GREv0, Flags [none], length 34 17 IS-IS, length 30 18 L1 LSP, hlen: 27, v: 1, pdu-v: 1, sys-id-len: 6 (6), max-area: 7 (7) 19 lsp-id: ffff.ffff.ffff.ff-ff, seq: 0xffffffff, lifetime: 65535s 20 chksum: 0xffff (incorrect should be 0x0fe8), PDU length: 65535, Flags: [ L1 IS ] 21 IS Neighbor(s) (variable length) TLV #7, length: 0 [|isis] 22 IP (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto GRE (47), length 54) 23 160.196.17.46 > 192.168.1.1: GREv0, Flags [none], length 34 24 IS-IS, length 30 25 L1 LSP, hlen: 27, v: 1, pdu-v: 1, sys-id-len: 6 (6), max-area: 7 (7) 26 lsp-id: ffff.ffff.ffff.ff-ff, seq: 0xffffffff, lifetime: 65535s 27 chksum: 0xffff (incorrect should be 0x0fe8), PDU length: 65535, Flags: [ L1 IS ] 28 IS Neighbor(s) (variable length) TLV #7, length: 0 [|isis] 29 IP (tos 0x0, ttl 128, id 0, offset 0, flags [DF], proto GRE (47), length 54) 30 246.181.173.63 > 192.168.1.1: GREv0, Flags [none], length 34 31 IS-IS, length 30 32 L1 LSP, hlen: 27, v: 1, pdu-v: 1, sys-id-len: 6 (6), max-area: 7 (7) 33 lsp-id: ffff.ffff.ffff.ff-ff, seq: 0xffffffff, lifetime: 65535s 34 chksum: 0xffff (incorrect should be 0x0fe8), PDU length: 65535, Flags: [ L1 IS ] 35 IS Neighbor(s) (variable length) TLV #7, length: 0 [|isis] 36
