Difference between revisions of "Cisco DHCP configuration"
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This configuration will be applied to Cisco 1941 with EHWIC-3G-HSPA+7 card and Light Weigh Access Point. | This configuration will be applied to Cisco 1941 with EHWIC-3G-HSPA+7 card and Light Weigh Access Point. | ||
= Basic DHCP config = | |||
;Configure Cisco router as DHCP SERVER | ;Configure Cisco router as DHCP SERVER | ||
configure terminal | configure terminal | ||
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*Sep 1 22:08:50.003: %DHCP-6-ADDRESS_ASSIGN: Interface GigabitEthernet0/0 assigned DHCP address 192.168.1.66, mask 255.255.255.0, hostname r1-basicchanged state to up | *Sep 1 22:08:50.003: %DHCP-6-ADDRESS_ASSIGN: Interface GigabitEthernet0/0 assigned DHCP address 192.168.1.66, mask 255.255.255.0, hostname r1-basicchanged state to up | ||
;Clear DHCP binding will clear the current assignment then resetting a client interface will trigger to re negotiate IP address | |||
R1#clear ip dhcp binding ? | |||
* Clear all automatic bindings | |||
A.B.C.D Clear a specific binding | |||
vrf DHCP vrf bindings | |||
[[Category:cisco]] | [[Category:cisco]] | ||
Revision as of 19:14, 20 October 2013
This configuration will be applied to Cisco 1941 with EHWIC-3G-HSPA+7 card and Light Weigh Access Point.
Basic DHCP config
- Configure Cisco router as DHCP SERVER
configure terminal service dhcp ip dhcp pool LMA-POOL network 192.168.100.0 255.255.255.0 default-router 192.168.100.254 dns-server 192.168.100.254 8.8.8.8 domain-name lma.gateway lease 0 8 '<--- 8 hrs lease -- number represents: Days Hours Minutes ---' ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.100.240 192.168.100.255
- Cisco router interface configured to obtain an IP Address from DHCP server
configure terminal r1-basic(config)#int gi 0/0 r1-basic(config-if)#ip address dhcp r1-basic(config-if)#no shutdown r1-basic(config-if)#end
once ip is assigned you will see
*Sep 1 22:08:50.003: %DHCP-6-ADDRESS_ASSIGN: Interface GigabitEthernet0/0 assigned DHCP address 192.168.1.66, mask 255.255.255.0, hostname r1-basicchanged state to up
- Clear DHCP binding will clear the current assignment then resetting a client interface will trigger to re negotiate IP address
R1#clear ip dhcp binding ? * Clear all automatic bindings A.B.C.D Clear a specific binding vrf DHCP vrf bindings