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dhcp [2024/03/14 21:49] 114.119.158.167 old revision restored (2023/10/24 21:32) |
dhcp [2024/05/05 02:05] (current) 216.244.66.196 old revision restored (2023/12/30 16:47) |
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====DHCP Relay==== | ====DHCP Relay==== | ||
- | 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. | + | Relays are configured with **'' |
+ | |||
+ | ====Show Commands==== | ||
+ | |||
+ | ===View Leases=== | ||
+ | < | ||
+ | R1#sh ip dhcp binding | ||
+ | Bindings from all pools not associated with VRF: | ||
+ | IP address | ||
+ | Hardware address/ | ||
+ | User name | ||
+ | 172.16.0.2 | ||
+ | 3230.342e.3430.3930. | ||
+ | 2e30.3030.312d.4661. | ||
+ | 302f.31 | ||
+ | 192.168.1.50 | ||
+ | 3230.332e.3366.6461. | ||
+ | 2e30.3030.302d.4661. | ||
+ | 302f.30 | ||
+ | </ | ||
+ | |||
+ | ===Server Statistics=== | ||
+ | < | ||
+ | R1#sh ip dhcp server statistics | ||
+ | Memory usage | ||
+ | Address pools 2 | ||
+ | Database agents | ||
+ | Automatic bindings | ||
+ | Manual bindings | ||
+ | Expired bindings | ||
+ | Malformed messages | ||
+ | Secure arp entries | ||
+ | |||
+ | Message | ||
+ | BOOTREQUEST | ||
+ | DHCPDISCOVER | ||
+ | DHCPREQUEST | ||
+ | DHCPDECLINE | ||
+ | DHCPRELEASE | ||
+ | DHCPINFORM | ||
+ | |||
+ | Message | ||
+ | BOOTREPLY | ||
+ | DHCPOFFER | ||
+ | DHCPACK | ||
+ | DHCPNAK | ||
+ | </ | ||
+ | |||
+ | ===Pool Stats=== | ||
+ | < | ||
+ | R1#sh ip dhcp pool | ||
+ | |||
+ | Pool LAN : | ||
+ | | ||
+ | | ||
+ | Total addresses | ||
+ | | ||
+ | | ||
+ | 1 subnet is currently in the pool : | ||
+ | | ||
+ | | ||
+ | </ |