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I want to use wired network behind a college proxy. I have setup the respective proxy settings, but the wired network is not accessible even though it is showing connected. I am able to access wireless with the same proxy settings, however.

ifconfig :

eth0      Link encap:Ethernet  HWaddr 24:b6:fd:2f:d2:3b  
          inet6 addr: fe80::26b6:fdff:fe2f:d23b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:18872 errors:0 dropped:11 overruns:0 frame:0
          TX packets:545 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1758509 (1.7 MB)  TX bytes:46046 (46.0 KB)

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:16436  Metric:1
          RX packets:2530 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2530 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:174343 (174.3 KB)  TX bytes:174343 (174.3 KB)

wlan0     Link encap:Ethernet  HWaddr 64:27:37:e2:45:59  
          inet addr:192.168.131.101  Bcast:192.168.131.255  Mask:255.255.255.0
          inet6 addr: fe80::6627:37ff:fee2:4559/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3176 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2196 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1270189 (1.2 MB)  TX bytes:317778 (317.7 KB)

lspci :

13:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
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