I set up the PIX with the outside interface (statically) the same as the IP given to my server from the cable modem and it didn't work, so I reset the cable modem and I had no choice but to put the outside interface on DHCP, and it picked up an IP immediately. I did this around 1:30 am; so far so good. But I'm worried about the problem you had; the IP failing. Theoretically, as long as I keep my the PIX plugged in exactly the way I have it and the same DHCP server is available, it should continue to renew it's lease 50% into the lease period.
The bad part for me about the changing IP address is that I had to change the host records for 2 of my domain names to reflect the new IP address (bummer). I've had the same IP address for over 3 months. I'll let you know if I have any other issues with this. Thanks. -----Original Message----- From: John Green To: Audy Bautista Sent: 3/24/02 8:14 AM Subject: Re: issue with PIX and dhcp ? [7:39269] my issue is solved. what about you. email me if your issue persists. --- Audy Bautista wrote: > I'm having the same problem with a PIX 501 and cable > modem. I'm probably > just going to take the IP received from the PC by > the ISP and just put it > statically on the outside interface on the PIX. > Does anyone foresee any > issues with this setup? > > > ""bergenpeak"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Hi John, > > > > Cable companies often configure their provisioning > (DHCP) severs > > to verify that the incoming DHCP request is from a > MAC which is > > known. > > > > Couple of things to try. > > > > * Power cycle the CM and then have the PIX attempt > to do DHCP. > > Do you get a DHCP OFFER? > > > > * After you power cycle the modem, put a sniffer > on the wire > > between the PIX and modem to make sure that the > PIX is generating > > enet frames from only one src MAC address. > Depending on your service > > and how the CM is configured, the CM might be > configured to learn > > one MAC on the home-side. If the PIX is > generating frames with > > different MAC src then the one used for DHCP, this > could be your > > issue. > > > > * If the above doesn't help and you have a host > which does get > > an IP address, configure the PIX (if possible) to > generate MAC > > src frames which originate with the host's MAC. > If this works, > > its likely because the cable company's DHCP > servers will only > > respond to known MACs. > > > > If you're an ATTBI-(former E@H/TCI) customer, > "unknown" MACs will > > usually get an IP address (but you'll have limited > access). > > > > If you're an ATTBI-(former Roadrunner/Mediaone) > customer, the > > provisioning system must know your MAC in order > for it to respond > > to your DHCP. > > > > Hope this helps, > > > > > > > > John Green wrote: > > > > > > is any one aware of any issue with PIX501 and > > > connecting via cable modem to get an ip address > (dhcp) > > > ? > > > > > > internet-----cable-----PIX----HOST > > > modem 501 > > > > > > without the pix, the HOST is able to get the > dhcp ip > > > address fine. the pix is configured to get an > > > ipaddress from dhcp for its outside interface. > but it > > > is failing. > > > does anyone know of such issues ? > > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Yahoo! Movies - coverage of the 74th Academy > Awards. > > > http://movies.yahoo.com/ [EMAIL PROTECTED] __________________________________________________ Do You Yahoo!? Yahoo! Movies - coverage of the 74th Academy Awards. http://movies.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39364&t=39269 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
