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General IP routing question
Firstly apologies if this is not the right group for this question but maybe someone can point me in the right direction.
My question is:
say for example and ISP assigns a static IP say 214.92.183.18 and I assign this to my mail server. Can somebody explain how mail is routed to me and why mail would not be routed to somebody somewhere else who assigns 214.92.183.18 to their router.
I understand the process of DNS and how a packet is routed to my ISP name server but how is my ISP nameserver aware of the MAC address of my router in order to route the packet to me?
Thanks in advance
My question is:
say for example and ISP assigns a static IP say 214.92.183.18 and I assign this to my mail server. Can somebody explain how mail is routed to me and why mail would not be routed to somebody somewhere else who assigns 214.92.183.18 to their router.
I understand the process of DNS and how a packet is routed to my ISP name server but how is my ISP nameserver aware of the MAC address of my router in order to route the packet to me?
Thanks in advance
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IF your ISP uses youe MAC address, you would have to tell them if you changed hardware.
Anyway if your ISP assigns you a static, they wouldn't let anyone else use it. Usually on dial up, an ISP uses cli (Caller Line Identifier) and maps the IP to your telephone number.
Anyway if your ISP assigns you a static, they wouldn't let anyone else use it. Usually on dial up, an ISP uses cli (Caller Line Identifier) and maps the IP to your telephone number.
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One question though. Say my connection is dialup isdn. What is there to prevent somebody else assinging my address to their router while my connection is down? There is no conflict in this case
More specifically I want to understand if the ISP routers maps traffic destined for my IP to the MAC address of my router what happens if my router crashes and has to be replaced - obviously the MAC address will change so how will DNS know that the new router with the new MAC is actually me?