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dhcp [2024/03/14 21:48] 114.119.130.33 old revision restored (2023/10/26 14:34) |
dhcp [2024/05/21 23:47] 54.235.17.69 old revision restored (2024/03/14 21:49) |
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====DHCP Relay==== | ====DHCP Relay==== | ||
- | Relays are configured with **'' | + | Relays are configured with **//ip helper-address x.x.x.x//** to specify which address to forward received DHCP requests. When our RTR forwards a DHCP request out via Relay, it does so with the **//SOURCE ADDRESS//** of the //**INTERFACE**// the //**HELPER-ADDRESS**// command was configured on. When this happens, the DHCP server can look at the //**SOURCE ADDR**// of the packet, and know exactly which scope to lease an address from - the same network that source resides in, ofc. |