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Home >> Computers Hardware&Software >> Router woes
20.02.2007, 22:55 quote
| francey wrote: |
you can change the nic mac simply using a program called smac http://www.klcconsulting.net/smac/  |
Even better then, wipes out the need for the cable modem in that case, just whack a cable/adsl nic in your pc, clone th emac using that, although i wouldn't trust MS's routing implementation as far as I could throw a PC running it
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20.02.2007, 23:13 quote
...only thing is, the cable company (ntl/telewest/virgin media) wouldnt let an alien modem pass its authentication, no matter what mac adress its using, so you wouldnt get online with it, thats why its necessary to use an ambit modem, or a motorola surfboard modem to get authenticated and receive a feed...
20.02.2007, 23:28 quote
| francey wrote: |
| ...only thing is, the cable company (ntl/telewest/virgin media) wouldnt let an alien modem pass its authentication, no matter what mac adress its using, so you wouldnt get online with it, thats why its necessary to use an ambit modem, or a motorola surfboard modem to get authenticated and receive a feed... |
Cable possibly but it's still possible as you can spoof the modem type via a custom os kernel, for adsl it's even easier, not overly experienced with cable however but know people in our department have done it before for experiments in our security research teams.
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21.02.2007, 00:20 quote
| kebabman wrote: | ||
Just to be pedantic the router doesn't reach out to make a pool of IP addresses for your network, it sends out a DHCP request to get an IP address for itself, this has nothing to do with your network! |
Your right about the DHCP request to the ISP but in the return the router act as a DHCP also as it assigns every device on your network a ip address..Also in my experince easy steps like this have reestablished connection wiht the internet.
21.02.2007, 00:26 quote
| chris343 wrote: | ||||
Your right about the DHCP request to the ISP but in the return the router act as a DHCP also as it assigns every device on your network a ip address.. |
The router acts as a DHCP server on your LAN yes, but this has absolutely nothing to do with the client that runs in order to get the WAN network information such as it's external IP etc. The pool of local addresses would be available internally irrespective of wether it even has an external connection and is usually configurable on the router, ie the netmask, range, prefixes etc and is totally independant of the request that is sent out to the ISP.
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21.02.2007, 00:30 quote
| Quote: |
| The pool of local addresses would be available internally irrespective of wether it even has an external connection and is usually configurable on the router, ie the netmask, range, prefixes etc and is totally independant of the request that is sent out to the ISP. |
Correct i just couldn't think of the word DHCP, even though i see it shoved at me in classes. For example linksys router is 192.168.1.1 and assigns off of this
21.02.2007, 00:36 quote
| chris343 wrote: | ||
Correct i just couldn't think of the word DHCP, even thouhg i see it shobed at me in classes |
heh, can be a pain in the butt this sort of stuff, I lecture networking classes for masters students at a university over here, just fyi, DHCP is made redundant by IPv6 as it uses stateless address autoconfiguration to assign addresses/routing information etc where the routers advertise the information at a pre configured time interval so you don't have to use the current system of DHCP (ie the client broadcasting it's DHCPREQUEST/DHCPDISCOVER messages), this can help a lot when it comes to mobility and solves some of the problems of protocols such as MIP, I'll shut up now or I'll be talking for hours.....
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21.02.2007, 00:45 quote
| kebabman wrote: | ||||
heh, can be a pain in the butt this sort of stuff, I lecture networking classes for masters students at a university over here, just fyi, DHCP is made redundant by IPv6 as it uses stateless address autoconfiguration to assign addresses/routing information etc where the routers advertise the information at a pre configured time interval so you don't have to use the current system of DHCP (ie the client broadcasting it's DHCPREQUEST/DHCPDISCOVER messages), this can help a lot when it comes to mobility and solves some of the problems of protocols such as MIP, I'll shut up now or I'll be talking for hours..... |
Thats crazy
lol
I'am kinda close to getting my BS in computer science which i'am not thrilled about.. I want to do more of the hardware portion of IT not the software. My college offers a degree in information technology but its only for a Associates degree and in todays world thats worth nothing. Very little schools would pick up those credits so i was forced into computer science.
21.02.2007, 00:49 quote
| chris343 wrote: | ||||||
Thats crazy lol
I'am kinda close to getting my BS in computer science which i'am not thrilled about.. I want to do more of the hardware portion of IT not the software. My college offers a degree in information technology but its only for a Associates degree and in todays world thats worth nothing. Very little schools would pick up those credits so i was forced into computer science. |
If you want to be more involved in the hardware side the best degree is electronic engineering, I did a bit of that in my undergraduate degree and it's pretty heavy going on the maths and I ended up veering to words CSc, got my BSc and MSc in it and now in the 3rd year of my PhD so it's really interesting now, but the ground work for a BSc can get a bit tiresome at times I found.
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21.02.2007, 00:58 quote
| kebabman wrote: | ||||||||
If you want to be more involved in the hardware side the best degree is electronic engineering, I did a bit of that in my undergraduate degree and it's pretty heavy going on the maths and I ended up veering to words CSc, got my BSc and MSc in it and now in the 3rd year of my PhD so it's really interesting now, but the ground work for a BSc can get a bit tiresome at times I found. |
I'am thinking of doing a minor around that area. Is lecturing a fulltime job for you, or do you have a side job?? I wouldn' t mind being a network admin for a small company, actually would quite like it. The thing with small companies your bound to do more of the work instead of a bigger company where you might just do a specific task. Doing more of the work is bettre because you have more expoerince to put down on a resume.
21.02.2007, 01:04 quote
| chris343 wrote: | ||||||||||
I'am thinking of doing a minor around that area. Is lecturing a fulltime job for you, or do you have a side job?? I wouldn' t mind being a network admin for a small company, actually would quite like it. The thing with small companies your bound to do more of the work instead of a bigger company where you might just do a specific task. Doing more of the work is bettre because you have more expoerince to put down on a resume. |
Lecturing is just one part of what I do, most of my work is research towards my PhD thesis looking at layer 3 protocols. Network admin is a pretty good job, a lot of cisco type stuff usually which is fairly easy to pick up and with a lot of companies they will also pay for you to do the cisco qualifications which look really good on a cv, you will probably also need unix/linux skills as well or will pick them up along the way. Anyway, too late for me, off for some sleep, if you want any advice/help with anything feel free to pm me..
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21.02.2007, 02:24 quote
| kebabman wrote: | ||||||||||||
Lecturing is just one part of what I do, most of my work is research towards my PhD thesis looking at layer 3 protocols. Network admin is a pretty good job, a lot of cisco type stuff usually which is fairly easy to pick up and with a lot of companies they will also pay for you to do the cisco qualifications which look really good on a cv, you will probably also need unix/linux skills as well or will pick them up along the way. Anyway, too late for me, off for some sleep, if you want any advice/help with anything feel free to pm me.. |
thanks
21.02.2007, 09:47 quote
Jesus, Im glad I did medicine, its far easier than this comp sci malarky 
Thats far tooooo scary to even think about.
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