NandoNachi Posted January 29, 2009 Share Posted January 29, 2009 i am a bit new to this fascinating world of networking and security, just wanted to know a few things which i could not understand by googling. i was running Nessus scanner on a friends computer who is on a different subnet and the nessus scanner gave a conclusion: The remote host is on a different logical network. However, it is on the same physical subnet. An attacker connecting from the same network as your Nessus scanner is on could reconfigure his system to force it to belong to the subnet of the remote host. This makes any filtering between the two subnets useless. i have a few doubts: 1.how do i know whether the subnets are logical or physical without using these software or what does Nessus actually do to work out whether the subnetting is logical or not? 2. does a router connects logical subnets, physical subnet or both? 3.Suppose my block has been given the address 10.100.95.x is there any way that i can "belong" to some other subnet like 10.100.98.x , which Nessus warned of?? (obviously without physically moving there ;) ) what does it mean by "reconfiguring to force a computer"???? i tried googling this but found basic stuff like changing ip address or changing subnet mask, i use windows vista and ubuntu 8.10 pls sort out my queries, thanks in advance Quote Link to comment Share on other sites More sharing options...
NandoNachi Posted February 1, 2009 Author Share Posted February 1, 2009 sum1 pls repy?!!!?!! Quote Link to comment Share on other sites More sharing options...
Bit Hunter Posted February 1, 2009 Share Posted February 1, 2009 I don't know how to do it, but it is possible. Used to have some networks like this back in high school.... Quote Link to comment Share on other sites More sharing options...
Sparda Posted February 1, 2009 Share Posted February 1, 2009 sum1 pls repy?!!!?!! Don't repost the same topic 4 more times please. Quote Link to comment Share on other sites More sharing options...
Gh0st Posted February 2, 2009 Share Posted February 2, 2009 (1) Im pretty sure you need some kind of software or prior knowledge in order to determine if all computers on the physical network are on the same logical subnet. (2)A router is a network layer device and it connects devices both physically and logically. (3)Changing your Ip and subnet mask to be in the range of other networks should do the trick as long the physical lan is the same and has no vlans or special port security/segmentation enabled. Links. http://en.wikipedia.org/wiki/OSI_model http://en.wikipedia.org/wiki/Subnetwork http://technet.microsoft.com/en-us/library/cc757614.aspx http://articles.techrepublic.com.com/5100-...11-6089187.html http://compnetworking.about.com/od/basicne..._Networking.htm Quote Link to comment Share on other sites More sharing options...
NandoNachi Posted February 2, 2009 Author Share Posted February 2, 2009 really sorry for posting the topic in many sections, i had lost my patience, really sorry and thank you very much for ur replies Quote Link to comment Share on other sites More sharing options...
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