又不是完全封锁,只是ping 丢包。
1?: [LOCALHOST] pmtu 1500
1: 192.168.2.1 0.799ms
1: 192.168.2.1 0.932ms
2: OpenWrt.lan 4.103ms
3: 192.168.3.1 4.321ms
4: 192.168.3.1 4.223ms pmtu 1492
4: 180.155.12.1 8.565ms
5: 124.74.37.197 12.201ms
6: 124.74.215.121 21.979ms
7: 61.152.86.50 12.105ms
8: no reply
9: 202.97.35.86 10.332ms asymm 10
10: 202.97.58.162 295.919ms
11: 202.97.49.26 261.431ms
12: 218.30.54.70 239.085ms
13: xe-0-6-0-4.r04.lsanca03.us.ce.gin.ntt.net 255.008ms
14: db-transit-consulting-gw.ip4.gtt.net 282.668ms asymm 13
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
25: no reply
26: no reply
27: no reply
28: no reply
29: no reply
30: no reply
31: no reply
Too many hops: pmtu 1492
Resume: pmtu 1492
1?: [LOCALHOST] pmtu 1500
1: 192.168.2.1 0.799ms
1: 192.168.2.1 0.932ms
2: OpenWrt.lan 4.103ms
3: 192.168.3.1 4.321ms
4: 192.168.3.1 4.223ms pmtu 1492
4: 180.155.12.1 8.565ms
5: 124.74.37.197 12.201ms
6: 124.74.215.121 21.979ms
7: 61.152.86.50 12.105ms
8: no reply
9: 202.97.35.86 10.332ms asymm 10
10: 202.97.58.162 295.919ms
11: 202.97.49.26 261.431ms
12: 218.30.54.70 239.085ms
13: xe-0-6-0-4.r04.lsanca03.us.ce.gin.ntt.net 255.008ms
14: db-transit-consulting-gw.ip4.gtt.net 282.668ms asymm 13
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
25: no reply
26: no reply
27: no reply
28: no reply
29: no reply
30: no reply
31: no reply
Too many hops: pmtu 1492
Resume: pmtu 1492