Oh, he could do that, but if someone were multi-tasking (read: doing many things at the same time and suddenly tried hopping on the "net", couldn't, and it wasn't all that important at the moment, and they knew WHY they couldn't get on the net (because of the DHCP issue)), they could just power-cycle the PIX and keep going... It doesn't really matter... its just one of those lazy factors....either way would probably take about as much time... it just depends on your attitude. :)
I personally would, and always do, come to a screeching halt with what I'm doing to go through the steps of troubleshooting to find out why the "net" suddenly became unreachable.... I mean, you never know, something may have changed physically in the topology, or maybe you entered a command on the PIX that you didn't verify that you did correctly, and simply started denying yourself access to the net. :) -Mark -----Original Message----- From: Erick B. [mailto:[EMAIL PROTECTED]] Sent: Sunday, March 24, 2002 5:18 AM To: Mark Odette II; [EMAIL PROTECTED] Subject: RE: issue with PIX and dhcp ? [7:39269] Why doesn't he just telnet/console into the PIX and do a 'ip address dhcp ...' instead of rebooting? This should renew it - at least this was working for me in a PIX class I attended last week. I did ask the instructor if you could change the MAC address on the PIX due to ISPs locking DHCP down to a MAC address and right nows theres not a way to change the MAC. --- Mark Odette II wrote: > "It Depends"!! > > Historically, If the PC's DHCP-assigned address has > never really changed > that often, then you should be fine. If it has > changed on a rather frequent > basis, then it'll probably stop having outside > communication after a small > period of time. > > Just as a side note, in some parts of the US, > specifically the D/FW area of > Texas, the Cable-modem providers have not configured > their networks in a way > that the PIX 501 doesn't get a DHCP address. One of > my colleagues is > running this with his provider. He has a PIX 501 > set up on Cable-modem, and > just has to bounce his PIX every once in a while > because the DHCP lease > doesn't renew in a standard automated fasion. But > as long as he reboots the > PIX, it gets a new address, and keeps on > transcieving.... > > I'll have to check to see who his provider is though > to give you an idea of > who does this functionality. > > -Mark > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Audy Bautista > Sent: Saturday, March 23, 2002 10:36 PM > To: [EMAIL PROTECTED] > Subject: Re: issue with PIX and dhcp ? [7:39269] > > > 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=39374&t=39269 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
