DNS poisoning in BSNL

@praka: even i saw that post but the sites have been working fine for me already since this morning even without that setting... but i have set my MTU to 1454 just in case :)
 
praka123 said:
Many ppl with NIB-I or NIB-II connection are complaining about they are not able to connect to some sites.sometimes it is google,micro$haft etc.

So the Solution is to change the MTU(Maximum Transmission Unit) to 1454 from 1500 or 1492.

In GNU/Linux , you can easily change by editing /etc/ppp/options file or /etc/ppp/peers/dsl-provider or /etc/network/interfaces or /etc/ppp/pppoe.conf file to add MTU value in format "mtu 1454" without quotes:ohyeah:

First try as root ,"ifconfig ppp0 down && ifconfig ppp0 up mtu 1454" to see the change!I was not able to access youtube and all(very slow).now it changed
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In window$ ,I have no idea.apart from in cmd , "ipconfig /ALL" will show those values
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but I saw this thread ,in broadbandforum :

http://broadbandforum.in/bsnl-broadb...snl-broadband/

^this is the solution for winblow$ users.
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Click to expand...

Thanks a Ton man!

Even a very close friend mine just disconnected with Broadband connection just because of this.

Even after 2months BSNL guys were clue less about this problem:lol:

BSNL guys tried everything except this

Obviously none of the below things worked

1) Changed his wiring

2) Changed his Modem

3) Told Format and reload OS on his PC, which he did

4) The Reset the port from exchange

5) The changed the port

Now lastly they said "Sorry sir, we don't know what the problem is, we will ask the supervisor ".

byt months passed and no solution

He had no option other than to Terminate the service

Now, he would kill me if i tell him this simple solution:P

Reps added, Thanks

[edit]

I am also changing my MTU but there is problem.

I have changed MTU from modem interface(192.168.1.1) and from /etc/network/interfaces

but

ifconfig still shows it as 1500 :S

Code: 
gaurish@Moody-Machine:~$ ifconfig

eth0      Link encap:Ethernet  HWaddr 00:11:09:06:18:c6  

          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::211:9ff:fe06:18c6/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:2873 errors:0 dropped:0 overruns:0 frame:0

          TX packets:3197 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:2308331 (2.2 MB)  TX bytes:577093 (563.5 KB)

          Interrupt:23 Base address:0x6000 

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:2194 errors:0 dropped:0 overruns:0 frame:0

          TX packets:2194 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:113109 (110.4 KB)  TX bytes:113109 (110.4 KB)

gaurish@Moody-Machine:~$ cat /etc/network/interfaces

auto lo

iface lo inet loopback

iface eth0 inet static

address 192.168.1.3

netmask 255.255.255.0

gateway 192.168.1.1

mtu 1454

auto eth0
 
@gary: no baba!that is not the way.you start internet and then check ifconfig output for interface "ppp0".

even better add "mtu 1454" to the file /etc/ppp/options .that will do.

if you are on dhcp(network) ,then setting MTU to 1454 for eth0 makes sense.
 
praka123 said:
@gary: no baba!that is not the way.you start internet and then check ifconfig output for interface "ppp0".

even better add "mtu 1454" to the file /etc/ppp/options .that will do.

if you are on dhcp(network) ,then setting MTU to 1454 for eth0 makes sense.
Click to expand...

I Using PPPoE, not the bridge mode:|
 
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