r4 is the dhcp server...
if you make r4 the default router of the pool, that will give the client THAT address as it's gateway...
R4#sh run | b dhcp pool cisco
ip dhcp pool cisco
network 10.2.1.0 255.255.255.0
default-router 10.1.4.5
note also there is no matching domain name, irrelevant...
R4#sh ip domain
lab.local
lab.local
cisco
r4 holds the binding for the pc off asw1...
R4#sh ip dhcp bind
Bindings from all pools not associated with VRF:
IP address Client-ID/ Lease expiration Type State Interface
Hardware address/
User name
10.2.1.3 01e8.9a8f.98a7.03 Feb 06 2013 08:19 AM Automatic Active Unknown
ip helper must support the svi, however...
dsw1#sh run int vlan 10
Building configuration...
Current configuration : 158 bytes
!
interface Vlan10
ip address 10.2.1.1 255.255.255.0
ip helper-address 10.1.4.5
standby 10 ip 10.2.1.254
standby 10 priority 110
standby 10 preempt
end
for my money, i'd rather have the gateway for the pc as the virtual ip of the vlan it belongs to regardless of the router which is governing it... as long as ip helper can get to it, you're done...
R4#sh run | b dhcp
ip dhcp pool cisco
network 10.2.1.0 255.255.255.0
default-router 10.2.1.254
the client has as its gateway the hsrp virtual address and it can ping across to the far end...
if the ip helper points to it from the correct vlan on the switch, you can put the dhcp server in any domain, on any device... but for your own sanity, use the hsrp ip because that's it's reason for being...
R4#debug ip dhcp serv pack
DHCP server packet debugging is on.
R4#
*Feb 5 08:44:01.173: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:44:01.177: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:44:01.181: DHCPD: client's VPN is .
*Feb 5 08:44:01.181: DHCPD: DHCPRELEASE message received from client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:44:01.189: DHCPD: removing ARP entry (10.2.1.3 vrf default).
R4#
*Feb 5 08:44:09.773: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:44:09.773: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:44:09.773: DHCPD: client's VPN is .
*Feb 5 08:44:09.773: DHCPD: DHCPDISCOVER received from client 01e8.9a8f.98a7.03 through relay 10.2.1.1.
*Feb 5 08:44:09.781: DHCPD: Saving workspace (ID=0x40000007)
*Feb 5 08:44:09.781: DHCPD: New packet workspace 0x6956B57C (ID=0xE5000008)
R4#
*Feb 5 08:44:11.781: DHCPD: Reprocessing saved workspace (ID=0x40000007)
*Feb 5 08:44:11.785: DHCPD: DHCPDISCOVER received from client 01e8.9a8f.98a7.03 through relay 10.2.1.1.
*Feb 5 08:44:11.785: DHCPD: Sending DHCPOFFER to client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:44:11.785: DHCPD: unicasting BOOTREPLY for client e89a.8f98.a703 to relay 10.2.1.1.
*Feb 5 08:44:11.785: DHCPD: Freeing saved workspace (ID=0x40000007)
*Feb 5 08:44:11.801: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:44:11.801: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:44:11.801: DHCPD: client's VPN is .
R4#
*Feb 5 08:44:11.801: DHCPD: DHCPREQUEST received from client 01e8.9a8f.98a7.03.
*Feb 5 08:44:11.801: DHCPD: Sending DHCPACK to client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:44:11.801: DHCPD: unicasting BOOTREPLY for client e89a.8f98.a703 to relay 10.2.1.1.
R4#
*Feb 5 08:44:15.317: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:44:15.321: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:44:15.325: DHCPD: client's VPN is .
*Feb 5 08:44:15.325: DHCPD: DHCPINFORM received from client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:44:15.325: DHCPD: Sending DHCPACK to client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:44:15.325: DHCPD: unicasting BOOTREPLY for client e89a.8f98.a703 to relay 10.2.1.1.
R4#
*Feb 5 08:45:28.553: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:45:28.553: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:45:28.553: DHCPD: client's VPN is .
*Feb 5 08:45:28.557: DHCPD: DHCPRELEASE message received from client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:45:28.557: DHCPD: removing ARP entry (10.2.1.3 vrf default).
R4#
*Feb 5 08:45:33.733: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:45:33.737: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:45:33.737: DHCPD: client's VPN is .
*Feb 5 08:45:33.737: DHCPD: DHCPDISCOVER received from client 01e8.9a8f.98a7.03 through relay 10.2.1.1.
*Feb 5 08:45:33.737: DHCPD: Saving workspace (ID=0xE5000008)
*Feb 5 08:45:33.741: DHCPD: New packet workspace 0x67EA1BDC (ID=0xA6000009)
R4#
*Feb 5 08:45:35.745: DHCPD: Reprocessing saved workspace (ID=0xE5000008)
*Feb 5 08:45:35.745: DHCPD: DHCPDISCOVER received from client 01e8.9a8f.98a7.03 through relay 10.2.1.1.
*Feb 5 08:45:35.745: DHCPD: Sending DHCPOFFER to client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:45:35.745: DHCPD: unicasting BOOTREPLY for client e89a.8f98.a703 to relay 10.2.1.1.
*Feb 5 08:45:35.745: DHCPD: Freeing saved workspace (ID=0xE5000008)
*Feb 5 08:45:35.765: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:45:35.765: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:45:35.765: DHCPD: client's VPN is .
R4#
*Feb 5 08:45:35.765: DHCPD: DHCPREQUEST received from client 01e8.9a8f.98a7.03.
*Feb 5 08:45:35.765: DHCPD: Sending DHCPACK to client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:45:35.765: DHCPD: unicasting BOOTREPLY for client e89a.8f98.a703 to relay 10.2.1.1.
R4#
*Feb 5 08:45:39.293: DHCPD: Reload workspace interface FastEthernet0/0 tableid 0.
*Feb 5 08:45:39.297: DHCPD: tableid for 10.1.4.5 on FastEthernet0/0 is 0
*Feb 5 08:45:39.301: DHCPD: client's VPN is .
*Feb 5 08:45:39.305: DHCPD: DHCPINFORM received from client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:45:39.305: DHCPD: Sending DHCPACK to client 01e8.9a8f.98a7.03 (10.2.1.3).
*Feb 5 08:45:39.309: DHCPD: unicasting BOOTREPLY for client e89a.8f98.a703 to relay 10.2.1.1.
No comments:
Post a Comment