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 While routers accept and make broadcasts, they do not onward them. This can be fairly a trouble when a transmit wants to get to a machine such as a DHCP or TFTP attendant thats on one surface of a router with other subnets on the other side.If a PC attempts to locate a DNS attendant with a broadcast, the transmit will be congested by the router and will never get to the DNS server. By configuring the ip helperaddress authority on the router, UDP broadcasts such as this will be translated into a unicast by the router, making the communication possible. The authority should be configured on the border that will be getting the broadcasts.breakR1configint e0R1configifip helperaddress ?A.B.C.D IP destination addressR1configifip helperaddress 100.1.1.2Now, you may be wondering if this authority covers all UDP services. Sorry, youre not receiving off that ea... |
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