1MPLS (label 100656, exp 6, [S], ttl 64)
2	IP (tos 0xc0, ttl 64, id 40719, offset 0, flags [none], proto TCP (6), length 71)
3    12.4.4.4.4100 > 12.8.8.8.179: Flags [P.], cksum 0xfd1b (correct), seq 1860641958:1860641977, ack 2969468967, win 16384, options [nop,nop,TS val 84784152 ecr 84770238], length 19: BGP
4	Keepalive Message (4), length: 19
5MPLS (label 100688, exp 7, [S], ttl 255)
6	IP (tos 0x0, ttl 64, id 40723, offset 0, flags [none], proto UDP (17), length 76)
7    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok]
8	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
9	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
10	  Return Code: No return code or return code contained in the Error Code TLV (0)
11	  Return Subcode: (0)
12	  Sender Handle: 0x00000000, Sequence: 1
13	  Sender Timestamp: Receiver Timestamp: no timestamp
14	  Target FEC Stack TLV (1), length: 12
15	    LDP IPv4 prefix subTLV (1), length: 5
16	      12.1.1.1/32
17	      0x0000:  0c01 0101 20
18	    0x0000:  0001 0005 0c01 0101 2000 0000
19IP (tos 0xc0, ttl 62, id 50878, offset 0, flags [none], proto UDP (17), length 60)
20    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok]
21	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
22	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
23	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
24	  Return Subcode: (0)
25	  Sender Handle: 0x00000000, Sequence: 1
26	  Sender Timestamp: Receiver Timestamp:
27MPLS (label 100704, exp 6, [S], ttl 64)
28	IP (tos 0xc0, ttl 64, id 40725, offset 0, flags [none], proto TCP (6), length 71)
29    12.4.4.4.2006 > 12.1.1.1.179: Flags [P.], cksum 0x6c0d (correct), seq 399708866:399708885, ack 708613212, win 16384, options [nop,nop,TS val 84784455 ecr 130411], length 19: BGP
30	Keepalive Message (4), length: 19
31MPLS (label 100704, exp 6, [S], ttl 64)
32	IP (tos 0xc0, ttl 64, id 40726, offset 0, flags [none], proto TCP (6), length 52)
33    12.4.4.4.2006 > 12.1.1.1.179: Flags [.], cksum 0x6451 (correct), seq 19, ack 20, win 16384, options [nop,nop,TS val 84784465 ecr 133413], length 0
34MPLS (label 100688, exp 7, [S], ttl 255)
35	IP (tos 0x0, ttl 64, id 40727, offset 0, flags [none], proto UDP (17), length 76)
36    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok]
37	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
38	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
39	  Return Code: No return code or return code contained in the Error Code TLV (0)
40	  Return Subcode: (0)
41	  Sender Handle: 0x00000000, Sequence: 2
42	  Sender Timestamp: Receiver Timestamp: no timestamp
43	  Target FEC Stack TLV (1), length: 12
44	    LDP IPv4 prefix subTLV (1), length: 5
45	      12.1.1.1/32
46	      0x0000:  0c01 0101 20
47	    0x0000:  0001 0005 0c01 0101 2000 0000
48IP (tos 0xc0, ttl 62, id 50880, offset 0, flags [none], proto UDP (17), length 60)
49    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok]
50	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
51	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
52	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
53	  Return Subcode: (0)
54	  Sender Handle: 0x00000000, Sequence: 2
55	  Sender Timestamp: Receiver Timestamp:
56MPLS (label 100688, exp 7, [S], ttl 255)
57	IP (tos 0x0, ttl 64, id 40729, offset 0, flags [none], proto UDP (17), length 76)
58    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok]
59	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
60	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
61	  Return Code: No return code or return code contained in the Error Code TLV (0)
62	  Return Subcode: (0)
63	  Sender Handle: 0x00000000, Sequence: 3
64	  Sender Timestamp: Receiver Timestamp: no timestamp
65	  Target FEC Stack TLV (1), length: 12
66	    LDP IPv4 prefix subTLV (1), length: 5
67	      12.1.1.1/32
68	      0x0000:  0c01 0101 20
69	    0x0000:  0001 0005 0c01 0101 2000 0000
70IP (tos 0xc0, ttl 62, id 50882, offset 0, flags [none], proto UDP (17), length 60)
71    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok]
72	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
73	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
74	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
75	  Return Subcode: (0)
76	  Sender Handle: 0x00000000, Sequence: 3
77	  Sender Timestamp: Receiver Timestamp:
78MPLS (label 100688, exp 7, [S], ttl 255)
79	IP (tos 0x0, ttl 64, id 40731, offset 0, flags [none], proto UDP (17), length 76)
80    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok]
81	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
82	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
83	  Return Code: No return code or return code contained in the Error Code TLV (0)
84	  Return Subcode: (0)
85	  Sender Handle: 0x00000000, Sequence: 4
86	  Sender Timestamp: Receiver Timestamp: no timestamp
87	  Target FEC Stack TLV (1), length: 12
88	    LDP IPv4 prefix subTLV (1), length: 5
89	      12.1.1.1/32
90	      0x0000:  0c01 0101 20
91	    0x0000:  0001 0005 0c01 0101 2000 0000
92IP (tos 0xc0, ttl 62, id 50883, offset 0, flags [none], proto UDP (17), length 60)
93    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok]
94	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
95	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
96	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
97	  Return Subcode: (0)
98	  Sender Handle: 0x00000000, Sequence: 4
99	  Sender Timestamp: Receiver Timestamp:
100MPLS (label 100688, exp 7, [S], ttl 255)
101	IP (tos 0x0, ttl 64, id 40733, offset 0, flags [none], proto UDP (17), length 76)
102    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok]
103	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
104	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
105	  Return Code: No return code or return code contained in the Error Code TLV (0)
106	  Return Subcode: (0)
107	  Sender Handle: 0x00000000, Sequence: 5
108	  Sender Timestamp: Receiver Timestamp: no timestamp
109	  Target FEC Stack TLV (1), length: 12
110	    LDP IPv4 prefix subTLV (1), length: 5
111	      12.1.1.1/32
112	      0x0000:  0c01 0101 20
113	    0x0000:  0001 0005 0c01 0101 2000 0000
114IP (tos 0xc0, ttl 62, id 50886, offset 0, flags [none], proto UDP (17), length 60)
115    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok]
116	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
117	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
118	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
119	  Return Subcode: (0)
120	  Sender Handle: 0x00000000, Sequence: 5
121	  Sender Timestamp: Receiver Timestamp:
122