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Inside Interface Addressing problem - PIX 506E

JDShelley
Level 1
Level 1

I have encountered the following problem, I cannot get the PIX "inside" interface to accept the needed IP address of 10.0.0.250 255.255.255.0 on a network I inherited. I get the following message: "Interface address is not on same subnet as dhcp pool". I get this even when DHCP is disabled in the PIX config. In frustration I have even tried the mask at 255.0.0.0 and configuring DHCP to hand out 10.0.0.x address range IPs. When trying to set DHCP to the 10.x.x.x range I get a similar message: Pool addresses not on same subnet as "inside" interface. I have reset the PIX to default settings several times during theses attempts just to get back to a clean start point. Any help or feedback would be greatly appreciated.

Jack

2 Replies 2

jmia
Level 7
Level 7

Jack,

You'll need to remove the dhcpd address range in order to change the IP address assigned to the interface serving as the DHCP server interface.

To do this try:

PIX(config)# no dhcpd address 192.168.1.10-192.168.1.50 inside

DHCPD disabled on inside interface because address pool is removed

Now set your inside interface ip address,

> PIX(config)# ip address inside

Save with cmd - write mem.

Hope this helps.

Jay

Thanks Jay - That was the resolution. I had evidently only tried that approach with the PDM and not CLI. Thanks Again!

Jack

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