ifconfig
eth0 Link encap:Ethernet HWaddr e0:3f:49:57:4b:d1
inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::e23f:49ff:fe57:4bd1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6068 errors:0 dropped:0 overruns:0 frame:0
TX packets:113 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3780468 (3.6 MiB) TX bytes:11800 (11.5 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 B) TX bytes:700 (700.0 B)
wlan0 Link encap:Ethernet HWaddr 00:21:5d:26:c1:10
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::221:5dff:fe26:c110/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1291 errors:0 dropped:0 overruns:0 frame:0
TX packets:5146 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:81917 (79.9 KiB) TX bytes:992000 (968.7 KiB)
但我连接baidu.com的时候，请问是本机的哪个ip地址发出的连接请求呢？如何查看
双网卡环境下，哪一个ip处于使用状态？
-
poloshiao
- 论坛版主
- 帖子： 18279
- 注册时间： 2009-08-04 16:33
Re: 双网卡环境下，哪一个ip处于使用状态？
把下面指令 複製 貼進終端機 執行
1. sudo route -nv
2. sudo tracepath forum.ubuntu.org.cn
3. sudo traceroute -i eth0 forum.ubuntu.org.cn
4. sudo traceroute -i wlan0 forum.ubuntu.org.cn
把結果直接 選取/複製/貼上來
1. sudo route -nv
2. sudo tracepath forum.ubuntu.org.cn
3. sudo traceroute -i eth0 forum.ubuntu.org.cn
4. sudo traceroute -i wlan0 forum.ubuntu.org.cn
把結果直接 選取/複製/貼上來
-
pengsir
- 帖子： 137
- 注册时间： 2015-07-24 8:29
- 系统： ubuntu
Re: 双网卡环境下，哪一个ip处于使用状态？
root@hwy:/home/debian8# route -nv
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
root@hwy:/home/debian8# tracepath forum.ubuntu.org.cn
1?: [LOCALHOST] pmtu 1500
1: 192.168.1.1 3.164ms
1: 192.168.1.1 12.867ms
2: 192.168.1.1 3.069ms pmtu 1492
2: 113.58.144.1 42.953ms
3: 221.11.165.9 44.810ms
4: 221.11.165.245 61.522ms asymm 7
5: 219.158.24.217 54.489ms asymm 6
6: 219.158.23.22 122.072ms
7: 219.158.97.30 169.597ms
8: 219.158.30.254 404.408ms
9: 199.102.95.5 317.132ms
10: 207.254.184.98 295.204ms
11: dist01.dc03.lax.ip4.scalabledns.com 270.719ms
12: dc03r04ds30.scalabledns.com 260.713ms
13: 192.157.242.155 274.252ms reached
Resume: pmtu 1492 hops 13 back 12
root@hwy:/home/debian8# traceroute -i eth0 forum.ubuntu.org.cn
traceroute to forum.ubuntu.org.cn (192.157.242.155), 30 hops max, 60 byte packets
1 * * *
2 * * *
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
root@hwy:/home/debian8# traceroute -i wlan0 forum.ubuntu.org.cn
traceroute to forum.ubuntu.org.cn (192.157.249.221), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 2.954 ms 2.938 ms 2.928 ms
2 113.58.144.1 (113.58.144.1) 30.905 ms 30.906 ms 30.899 ms
3 221.11.165.9 (221.11.165.9) 36.599 ms 40.973 ms 221.11.165.13 (221.11.165.13) 40.947 ms
4 221.11.154.181 (221.11.154.181) 40.953 ms 40.944 ms 221.11.155.249 (221.11.155.249) 92.339 ms
5 219.158.24.217 (219.158.24.217) 52.947 ms 219.158.23.237 (219.158.23.237) 60.847 ms 219.158.100.241 (219.158.100.241) 56.907 ms
6 219.158.14.189 (219.158.14.189) 104.059 ms 219.158.12.45 (219.158.12.45) 94.397 ms 94.381 ms
7 219.158.97.190 (219.158.97.190) 186.446 ms 219.158.97.202 (219.158.97.202) 170.232 ms 219.158.97.190 (219.158.97.190) 178.118 ms
8 219.158.98.78 (219.158.98.78) 178.100 ms 169.033 ms 169.003 ms
9 219.158.98.54 (219.158.98.54) 303.880 ms 312.199 ms 303.862 ms
10 219.158.33.18 (219.158.33.18) 316.333 ms 316.302 ms 316.302 ms
11 ae9.cr1.sjc2.us.zip.zayo.com (64.125.31.201) 271.868 ms 266.320 ms 269.262 ms
12 ae5.mpr1.den1.us.zip.zayo.com (64.125.25.54) 370.310 ms * 365.620 ms
13 ae11.mpr2.den1.us.zip.zayo.com (64.125.31.154) 571.369 ms 568.334 ms 562.806 ms
14 ae13.cr2.ord2.us.zip.zayo.com (64.125.21.253) 582.968 ms 581.298 ms 590.346 ms
15 * * ae14.er2.ord7.us.zip.zayo.com (64.125.31.70) 644.818 ms
16 * * enzu.com-gw.chi.ip4.cpe.zayo.com (208.184.236.186) 640.340 ms
17 border02-core.dc02.chi.ip4.scalabledns.com (192.80.184.18) 340.489 ms 341.927 ms 336.816 ms
18 199.231.209.9 (199.231.209.9) 333.417 ms 332.984 ms 330.489 ms
19 192.157.249.221 (192.157.249.221) 327.491 ms 338.317 ms 327.738 ms
默认状态下，我的wlan0被使用
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
root@hwy:/home/debian8# tracepath forum.ubuntu.org.cn
1?: [LOCALHOST] pmtu 1500
1: 192.168.1.1 3.164ms
1: 192.168.1.1 12.867ms
2: 192.168.1.1 3.069ms pmtu 1492
2: 113.58.144.1 42.953ms
3: 221.11.165.9 44.810ms
4: 221.11.165.245 61.522ms asymm 7
5: 219.158.24.217 54.489ms asymm 6
6: 219.158.23.22 122.072ms
7: 219.158.97.30 169.597ms
8: 219.158.30.254 404.408ms
9: 199.102.95.5 317.132ms
10: 207.254.184.98 295.204ms
11: dist01.dc03.lax.ip4.scalabledns.com 270.719ms
12: dc03r04ds30.scalabledns.com 260.713ms
13: 192.157.242.155 274.252ms reached
Resume: pmtu 1492 hops 13 back 12
root@hwy:/home/debian8# traceroute -i eth0 forum.ubuntu.org.cn
traceroute to forum.ubuntu.org.cn (192.157.242.155), 30 hops max, 60 byte packets
1 * * *
2 * * *
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
root@hwy:/home/debian8# traceroute -i wlan0 forum.ubuntu.org.cn
traceroute to forum.ubuntu.org.cn (192.157.249.221), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 2.954 ms 2.938 ms 2.928 ms
2 113.58.144.1 (113.58.144.1) 30.905 ms 30.906 ms 30.899 ms
3 221.11.165.9 (221.11.165.9) 36.599 ms 40.973 ms 221.11.165.13 (221.11.165.13) 40.947 ms
4 221.11.154.181 (221.11.154.181) 40.953 ms 40.944 ms 221.11.155.249 (221.11.155.249) 92.339 ms
5 219.158.24.217 (219.158.24.217) 52.947 ms 219.158.23.237 (219.158.23.237) 60.847 ms 219.158.100.241 (219.158.100.241) 56.907 ms
6 219.158.14.189 (219.158.14.189) 104.059 ms 219.158.12.45 (219.158.12.45) 94.397 ms 94.381 ms
7 219.158.97.190 (219.158.97.190) 186.446 ms 219.158.97.202 (219.158.97.202) 170.232 ms 219.158.97.190 (219.158.97.190) 178.118 ms
8 219.158.98.78 (219.158.98.78) 178.100 ms 169.033 ms 169.003 ms
9 219.158.98.54 (219.158.98.54) 303.880 ms 312.199 ms 303.862 ms
10 219.158.33.18 (219.158.33.18) 316.333 ms 316.302 ms 316.302 ms
11 ae9.cr1.sjc2.us.zip.zayo.com (64.125.31.201) 271.868 ms 266.320 ms 269.262 ms
12 ae5.mpr1.den1.us.zip.zayo.com (64.125.25.54) 370.310 ms * 365.620 ms
13 ae11.mpr2.den1.us.zip.zayo.com (64.125.31.154) 571.369 ms 568.334 ms 562.806 ms
14 ae13.cr2.ord2.us.zip.zayo.com (64.125.21.253) 582.968 ms 581.298 ms 590.346 ms
15 * * ae14.er2.ord7.us.zip.zayo.com (64.125.31.70) 644.818 ms
16 * * enzu.com-gw.chi.ip4.cpe.zayo.com (208.184.236.186) 640.340 ms
17 border02-core.dc02.chi.ip4.scalabledns.com (192.80.184.18) 340.489 ms 341.927 ms 336.816 ms
18 199.231.209.9 (199.231.209.9) 333.417 ms 332.984 ms 330.489 ms
19 192.157.249.221 (192.157.249.221) 327.491 ms 338.317 ms 327.738 ms
默认状态下，我的wlan0被使用
-
poloshiao
- 论坛版主
- 帖子： 18279
- 注册时间： 2009-08-04 16:33
Re: 双网卡环境下，哪一个ip处于使用状态？
1. 路由 wlan0 雙向生效route -nv
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
路由 eth0 單向生效
2. 路徑走 wlan0traceroute -i wlan0 forum.ubuntu.org.cn
traceroute to forum.ubuntu.org.cn (192.157.249.221), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 2.954 ms 2.938 ms 2.928 ms
2 113.58.144.1 (113.58.144.1) 30.905 ms 30.906 ms 30.899 ms
3. 路徑不是走 wlan0traceroute -i eth0 forum.ubuntu.org.cn
traceroute to forum.ubuntu.org.cn (192.157.242.155), 30 hops max, 60 byte packets
1 * * *
2 * * *
4. 補充
一般雙網卡 不建議同時屬於同一個 子網卡
屬於同一個 子網 有時會拖慢速度
最好屬於兩個不同的子網 兩個有效的路由
如果只能屬於同一個 子網
最好關閉其中不用的那一個網卡
-
poloshiao
- 论坛版主
- 帖子： 18279
- 注册时间： 2009-08-04 16:33
Re: 双网卡环境下，哪一个ip处于使用状态？
单向生效 是我自己用來描述192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 ---> 192.168.1.0
但是 沒有
192.168.1.0 ---> 0.0.0.0
補充
這裡的 0.0.0.0 表示 all IPv4 addresses on the local machine
192.168.1.0={192.168.1.x|0<x<256} 子網集合