MTU & TTL
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Hello everyone... I got a question no one seems to know the answer in the place I am working in.When I send a ping to a machine X ,I got TTL = 128 , and after I optimized the machine X and I "ping" it again I got TTL = 56. I know for sure that this machine X is connected to the internet through ADSL , and I am pinging it from a local network.I also know the machine X could have any of the MS system , but definetly not Linux or Mac OS. I don t understand how the packet size (MTU) could affect the number of router it goes through (TTL) , so please help me with it .. :confused::confused::confused: Thanx ZhErHo@@7o
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Hello everyone... I got a question no one seems to know the answer in the place I am working in.When I send a ping to a machine X ,I got TTL = 128 , and after I optimized the machine X and I "ping" it again I got TTL = 56. I know for sure that this machine X is connected to the internet through ADSL , and I am pinging it from a local network.I also know the machine X could have any of the MS system , but definetly not Linux or Mac OS. I don t understand how the packet size (MTU) could affect the number of router it goes through (TTL) , so please help me with it .. :confused::confused::confused: Thanx ZhErHo@@7o
TTL field is set on the originating machine, so changing MTU on another machine, has nothing to do with changing the TTL value on the originating machine. zhero70 wrote: after I optimized the machine X and I "ping" it again I got TTL = 56. zhero70 wrote: I also know the machine X could have any of the MS system , but definetly not Linux or Mac OS. Sounds a bit strange, that you've optimised machine X, but don't know for sure what OS it is running! :) Regards, Venet. -------- Black holes are where God divided by zero.(Steven Wright)
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TTL field is set on the originating machine, so changing MTU on another machine, has nothing to do with changing the TTL value on the originating machine. zhero70 wrote: after I optimized the machine X and I "ping" it again I got TTL = 56. zhero70 wrote: I also know the machine X could have any of the MS system , but definetly not Linux or Mac OS. Sounds a bit strange, that you've optimised machine X, but don't know for sure what OS it is running! :) Regards, Venet. -------- Black holes are where God divided by zero.(Steven Wright)
Ok... I rephrase my question so I ll get better answer than this one... Some friend told me he got Windows XP connected to the net with ADSL.He also tell me his I.P. address , and ask me to ping his machine and tell him what I got.I noticed I got a TTL value of 237 ...(My friend was interested in the request time in ms and not the TTL I got) The next morning , the same friend ask me again to ping his machine , and then I am suddenly suprised to see his TTL changed to 56 ! So I asked him what is going on ? And I get for answer :"I install a reg patch from "speedguide.net" to optimized my machine , to change its MTU". Is it possible that changing the size of a packet can actually change the time it's travelling through routers ? Wise answers only , please.. :cool: ZhErHo@@7o
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Ok... I rephrase my question so I ll get better answer than this one... Some friend told me he got Windows XP connected to the net with ADSL.He also tell me his I.P. address , and ask me to ping his machine and tell him what I got.I noticed I got a TTL value of 237 ...(My friend was interested in the request time in ms and not the TTL I got) The next morning , the same friend ask me again to ping his machine , and then I am suddenly suprised to see his TTL changed to 56 ! So I asked him what is going on ? And I get for answer :"I install a reg patch from "speedguide.net" to optimized my machine , to change its MTU". Is it possible that changing the size of a packet can actually change the time it's travelling through routers ? Wise answers only , please.. :cool: ZhErHo@@7o
zhero70 wrote: Wise answers only , please.. How do you mean wise ? Your question was a bit stupid really. You said that you have optimised a machine and don't know what OS is it running on !!!! Regards, Venet. -------- Black holes are where God divided by zero.(Steven Wright)