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It seems like you are asking for something completely different from what you really need. What I read from your question is that you have some number of independent routers connected to different ISPs and as long as those are not interconnected with each other, the network works as intended. Now you want one server to be reachable from each network, so you ...


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Two networks mean two broadcast domains. Since DHCP communicates over broadcasts, the packet is dropped at the network boundary, say: the router. You need to configure the router to relay DHCP communication between the networks. Now you have a second problem: Your DHCP server will need to know that the computer is in another network and so needs an IP ...


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when a client requests an IP address it does not know anything about the DHCP server so it broadcasts a DHCP DISCOVER packet to all hosts on its segment, if it does not get a response - and it won't in your case - DHCP won't work, in order to avoid setting up an DHCP server in every VLAN we use 'IP HELPER' address, this is a switch configuration that detects ...


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Yes, DHCP requests are broadcast requests. If the host wanting a DHCP address is on a different subnet then you need to configure an IP Helper address. The IP helper address will forward the DHCP request using unicast to the DHCP server.


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Static IPs are normally outside the pool range as you do not want static IPs assigned to other hosts. As long as the static IPs are in an IP range local (or relayed) to the DCHP server they can be served. The leases file records which addresses from the pool have been assigned to a host and when that assignment expires. This is used to ensure that ...


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Some DHCP server software operate differently when it comes to reservations: some require that all reserved addresses be outside the dynamic range but be within the subnet. some require that all reserved addresses be within the dynamic range, and it then knows not to use these when allocating other hosts dynamically. some allow a reserved address to be ...


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The manual www.freedesktop.org/... shows only a handful of options and nothing that indicates support for such more advanced DHCP server options.


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First and foremost you must have access to the H3C switch if you don't then you are at the mercy of whoever is in charge of your network. Otherwise, you must make sure that there is no other DHCP server running on that specific vlan. Further, yes you are right the H3C switch is probably configured to not let outside DHCP requests through since there is ...



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