Recently our ISP switched our plan from a statically assigned IP to DHCP (that renews the same address). I'm not a CCNA, but the PIX 506 we have was relatively easy to setup. Now that the outside address has to be grabbed from DHCP I'm having problems.
First of all, try the following command
>ip address outside dhcp
And I get:
DHCP command failed
Do I have to clear everything and start over? If so, when setting it back up should the above command work? What are the steps?
I've contacted the ISP and they said that they could see the DSL modem. I also asked them why the PIX was having problems and they said 'Contact your vendor'.
Turns out that the ISP didn't do something right at their wire center and have basically been telling me to figure it out myself for the past week.
Now the problem is that what do I enter for the NAT, GLOBAL, and ROUTE commands? I just nuked them two seconds ago (finally got my outside ip about 15 minutes ago) so I'm in the process of rebuilding the PIX.
Basically, everything is gone except the ip addresses and telnet.
Any help would be appreciated. I know this is a simple problem but I know virtually nothing about Cisco equipment and last time I did anything with Cisco was when I set this PIX up over half a year ago.
The Default route has been set for the computers on the inside network and now I just need to know what to change on the pix to get it working. If anyone needs the outside ip, masks, or isp gateway I can post those as well.
I'm a little too late to help I'm glad you figured it out. Remember when troubleshoooting to start simple and go to complex. Think of your job as proving that you are in the right and they are wrong. DSL sometimes goes down because of a variety of issues from line quality to CO equipment. To check DSL first connect it directly to your macine ask your ISP what the configuration is supposed to be before hand. One moore peice of advice never sound frustrated or get upset with a tech you'll be down a lot longer.
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[toc:faq]Introduction:This document describes details on how NAT-T
works.Background:ESP encrypts all critical information, encapsulating
the entire inner TCP/UDP datagram within an ESP header. ESP is an IP
protocol in the same sense that TCP and UDP are I...