Networking
Tracert 始終顯示同一路由器躍點處的封包遺失
我讀到 * 表示 tracert 輸出中的封包遺失。我在同一個 IP 上執行了 3 次相同的命令，並且可以始終在同一個躍點上看到 *。
C:\Users\jpnin>tracert sea.valve.net Tracing route to sea.valve.net [205.196.6.129] over a maximum of 30 hops: 1 1 ms 1 ms 1 ms dlinkrouter.Dlink [192.168.0.1] 2 4 ms 2 ms 4 ms 10.226.0.1 3 451 ms 742 ms 696 ms 10.200.150.36 4 * * * Request timed out. 5 4 ms 3 ms 3 ms 121.242.155.181.static-chennai.vsnl.net.in [121.242.155.181] 6 27 ms 26 ms 26 ms 172.25.81.134 7 24 ms 22 ms 23 ms ix-ae-0-100.tcore1.mlv-mumbai.as6453.net [180.87.38.5] 8 215 ms * 215 ms if-ae-5-2.tcore1.wyn-marseille.as6453.net [80.231.217.29] 9 208 ms 210 ms 207 ms if-ae-2-3.tcore2.wyn-marseille.as6453.net [80.231.217.51] 10 214 ms 213 ms 213 ms if-ae-9-2.tcore2.l78-london.as6453.net [80.231.200.14] 11 210 ms 205 ms 205 ms if-ae-2-2.tcore1.l78-london.as6453.net [80.231.131.2] 12 219 ms 222 ms 218 ms if-ae-15-5.tcore3.njy-newark.as6453.net [80.231.130.102] 13 214 ms 210 ms 210 ms if-ae-1-3.tcore4.njy-newark.as6453.net [216.6.57.6] 14 204 ms 203 ms 202 ms if-ae-34-15.tcore3.nto-newyork.as6453.net [66.198.111.59] 15 * * 206 ms if-be-2-2.ecore1.n75-newyork.as6453.net [66.110.96.62] 16 206 ms 206 ms 202 ms if-ae-57-2.tcore1.n75-newyork.as6453.net [66.110.96.58] 17 207 ms 207 ms 209 ms 66.110.96.114 18 205 ms 206 ms 205 ms be-3312-cs03.newyork.ny.ibone.comcast.net [96.110.34.41] 19 218 ms 214 ms 214 ms be-1311-cr11.newyork.ny.ibone.comcast.net [96.110.35.122] 20 226 ms 226 ms 225 ms be-302-cr12.350ecermak.il.ibone.comcast.net [96.110.38.69] 21 223 ms 223 ms 222 ms be-1112-cs01.350ecermak.il.ibone.comcast.net [96.110.35.17] 22 228 ms 228 ms * be-1111-cr11.350ecermak.il.ibone.comcast.net [96.110.35.2] 23 244 ms 245 ms 245 ms be-304-cr11.1601milehigh.co.ibone.comcast.net [96.110.37.158] 24 249 ms 247 ms 246 ms be-1311-cs03.1601milehigh.co.ibone.comcast.net [96.110.39.73] 25 259 ms 257 ms 256 ms be-1313-cr13.1601milehigh.co.ibone.comcast.net [96.110.39.106] 26 248 ms 250 ms 248 ms be-303-cr13.champa.co.ibone.comcast.net [96.110.36.201] 27 248 ms 248 ms 248 ms be-1413-cs04.champa.co.ibone.comcast.net [96.110.37.237] 28 244 ms 244 ms 244 ms be-1411-cr11.champa.co.ibone.comcast.net [96.110.37.206] 29 269 ms 269 ms 269 ms be-302-cr11.seattle.wa.ibone.comcast.net [96.110.36.214] 30 269 ms 269 ms 272 ms be-1311-cs03.seattle.wa.ibone.comcast.net [96.110.47.201] Trace complete. C:\Users\jpnin>tracert sea.valve.net Tracing route to sea.valve.net [205.196.6.129] over a maximum of 30 hops: 1 1 ms 1 ms 1 ms dlinkrouter.Dlink [192.168.0.1] 2 3 ms 2 ms 2 ms 10.226.0.1 3 523 ms 415 ms 223 ms 10.200.150.36 4 * * * Request timed out. 5 3 ms 2 ms 5 ms 121.242.155.181.static-chennai.vsnl.net.in [121.242.155.181] 6 26 ms 28 ms 28 ms 172.25.81.134 7 21 ms 21 ms 21 ms ix-ae-0-100.tcore1.mlv-mumbai.as6453.net [180.87.38.5] 8 * * * Request timed out. 9 208 ms 213 ms 212 ms if-ae-2-3.tcore2.wyn-marseille.as6453.net [80.231.217.51] 10 215 ms 213 ms 213 ms if-ae-9-2.tcore2.l78-london.as6453.net [80.231.200.14] 11 208 ms 205 ms 209 ms if-ae-2-2.tcore1.l78-london.as6453.net [80.231.131.2] 12 224 ms 218 ms 220 ms if-ae-15-5.tcore3.njy-newark.as6453.net [80.231.130.102] 13 211 ms 211 ms 214 ms if-ae-1-3.tcore4.njy-newark.as6453.net [216.6.57.6] 14 202 ms 205 ms 203 ms if-ae-34-15.tcore3.nto-newyork.as6453.net [66.198.111.59] 15 207 ms 207 ms 208 ms if-be-2-2.ecore1.n75-newyork.as6453.net [66.110.96.62] 16 212 ms 204 ms 205 ms if-ae-57-2.tcore1.n75-newyork.as6453.net [66.110.96.58] 17 208 ms 207 ms 207 ms 66.110.96.114 18 205 ms 206 ms 209 ms be-3312-cs03.newyork.ny.ibone.comcast.net [96.110.34.41] 19 214 ms 214 ms 216 ms be-1311-cr11.newyork.ny.ibone.comcast.net [96.110.35.122] 20 227 ms 226 ms 228 ms be-302-cr12.350ecermak.il.ibone.comcast.net [96.110.38.69] 21 222 ms 223 ms 222 ms be-1112-cs01.350ecermak.il.ibone.comcast.net [96.110.35.17] 22 226 ms 228 ms * be-1111-cr11.350ecermak.il.ibone.comcast.net [96.110.35.2] 23 246 ms 243 ms 245 ms be-304-cr11.1601milehigh.co.ibone.comcast.net [96.110.37.158] 24 247 ms 253 ms 251 ms be-1311-cs03.1601milehigh.co.ibone.comcast.net [96.110.39.73] 25 257 ms 258 ms 260 ms be-1313-cr13.1601milehigh.co.ibone.comcast.net [96.110.39.106] 26 248 ms 251 ms 251 ms be-303-cr13.champa.co.ibone.comcast.net [96.110.36.201] 27 248 ms 247 ms 251 ms be-1413-cs04.champa.co.ibone.comcast.net [96.110.37.237] 28 246 ms 245 ms 244 ms be-1411-cr11.champa.co.ibone.comcast.net [96.110.37.206] 29 269 ms 270 ms 270 ms be-302-cr11.seattle.wa.ibone.comcast.net [96.110.36.214] 30 270 ms 269 ms 271 ms be-1311-cs03.seattle.wa.ibone.comcast.net [96.110.47.201] Trace complete. C:\Users\jpnin>tracert sea.valve.net Tracing route to sea.valve.net [205.196.6.129] over a maximum of 30 hops: 1 5 ms 5 ms 1 ms dlinkrouter.Dlink [192.168.0.1] 2 3 ms 3 ms 1 ms 10.226.0.1 3 30 ms 57 ms 151 ms 10.200.150.36 4 * * * Request timed out. 5 2 ms 2 ms 2 ms 121.242.155.181.static-chennai.vsnl.net.in [121.242.155.181] 6 27 ms 29 ms 28 ms 172.25.81.134 7 21 ms 25 ms 31 ms ix-ae-0-100.tcore1.mlv-mumbai.as6453.net [180.87.38.5] 8 216 ms 216 ms 216 ms if-ae-5-2.tcore1.wyn-marseille.as6453.net [80.231.217.29] 9 208 ms 207 ms 211 ms if-ae-2-3.tcore2.wyn-marseille.as6453.net [80.231.217.51] 10 213 ms 218 ms 213 ms if-ae-9-2.tcore2.l78-london.as6453.net [80.231.200.14] 11 234 ms 205 ms 204 ms if-ae-2-2.tcore1.l78-london.as6453.net [80.231.131.2] 12 226 ms 219 ms 218 ms if-ae-15-5.tcore3.njy-newark.as6453.net [80.231.130.102] 13 211 ms 214 ms 213 ms if-ae-1-3.tcore4.njy-newark.as6453.net [216.6.57.6] 14 203 ms 202 ms 207 ms if-ae-34-15.tcore3.nto-newyork.as6453.net [66.198.111.59] 15 207 ms 207 ms 211 ms if-be-2-2.ecore1.n75-newyork.as6453.net [66.110.96.62] 16 206 ms 201 ms 205 ms if-ae-57-2.tcore1.n75-newyork.as6453.net [66.110.96.58] 17 210 ms 207 ms 211 ms 66.110.96.114 18 206 ms 205 ms 209 ms be-3312-cs03.newyork.ny.ibone.comcast.net [96.110.34.41] 19 215 ms 214 ms 214 ms be-1311-cr11.newyork.ny.ibone.comcast.net [96.110.35.122] 20 226 ms 226 ms 228 ms be-302-cr12.350ecermak.il.ibone.comcast.net [96.110.38.69] 21 223 ms 226 ms 223 ms be-1112-cs01.350ecermak.il.ibone.comcast.net [96.110.35.17] 22 226 ms 228 ms 225 ms be-1111-cr11.350ecermak.il.ibone.comcast.net [96.110.35.2] 23 260 ms 243 ms 243 ms be-304-cr11.1601milehigh.co.ibone.comcast.net [96.110.37.158] 24 251 ms 247 ms 247 ms be-1311-cs03.1601milehigh.co.ibone.comcast.net [96.110.39.73] 25 257 ms 258 ms 256 ms be-1313-cr13.1601milehigh.co.ibone.comcast.net [96.110.39.106] 26 251 ms 248 ms 248 ms be-303-cr13.champa.co.ibone.comcast.net [96.110.36.201] 27 248 ms 250 ms 247 ms be-1413-cs04.champa.co.ibone.comcast.net [96.110.37.237] 28 246 ms 244 ms 243 ms be-1411-cr11.champa.co.ibone.comcast.net [96.110.37.206] 29 270 ms 270 ms 273 ms be-302-cr11.seattle.wa.ibone.comcast.net [96.110.36.214] 30 270 ms 271 ms 269 ms be-1311-cs03.seattle.wa.ibone.comcast.net [96.110.47.201] Trace complete.可以安全地假設第 4 跳的路由器存在問題，因為它始終沒有顯示響應。我計劃使用這些結果聯繫我的 ISP。所以只是確認我正在以正確的方式閱讀這篇文章。提前致謝。
可以安全地假設第 4 跳的路由器存在問題，因為它始終沒有顯示響應。
不。路由器的工作是路由流量，而不是響應 ICMP。位于躍點 4 的路由器可能會故意丟棄 tracert ICMP 流量（這意味著它已被程式為這樣做）。Tracert 到達目的地這一事實清楚地表明，第 4 跳的路由器正在按應有的方式路由流量。它只是丟棄/忽略指向自身的跟踪器。除此之外，它會將您的跟踪器傳遞到路徑中的下一個躍點。如果不是，那麼之後的每一跳也會超時。