Tell us about the end remote from the access-server. Is it: a) an Internet dial-up account? b) an Internet account with a fixed IP address? c) DSL or cable modem (always on)?
What sort of equipment do you have at that site? a) PC? b) router? I assume that the ip assigned to the access-server is Internet routable? Not so quick and definitely dirty: Find out the scope of the addresses assigned by the DHCP server. Ping scan the range. Telnet to each address that replies. Put a banner on your access-server. You'll immediately recognize it. If you have a router at your remote site and it has a fixed ip address - what can you do to maintain connectivity and re-establish connectivity from the access-server end in the event of a router reboot? How about an IPSec tunnel? This config requires a known ip address at one end only. http://www.cisco.com/warp/customer/707/ios_804.html If you're dealing with 2500s try esp-null to minimize cpu cycles. > -----Original Message----- > From: Pierre-Alex Guanel [mailto:[EMAIL PROTECTED]] > Sent: Friday, June 28, 2002 2:31 PM > To: [EMAIL PROTECTED] > Subject: DHCP on Access-Server - creative solution? [7:47697] > > > I know this is creazy but I am working on an access-server > with an external > ip address assigned via DHCP! If the router reboots and get a > new IP, I will > be faced with the challenge of figuring out what the new IP is!!! > > So far I have explored/tested the following without success: > > * SNMP > * SYSLOG > * Routing Updates via BGP > > I can't get snmp and syslog to generate messages on reboot! > (But it works if I shut down an interface manually...) > As for BGP it will simply not work because I won't know the > IP address on > the remote side for the "neighbor" statement > > Another creative ideas I had was to generate http traffic > from the router to > a Web server I can monitor off site. However after a few > hours of browsing > CCO I still have not found any commands to do that...There > must be a way to > have the access-server reveal its IP address. Don't you think? > > > Pierre-Alex > > P.S. Limitations: > > 1) The management will NOT give me a fixed IP address > 2) I cannot access any servers remotely to sniff the traffic > 3) There will be no live assistance to look at the IP for me Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47741&t=47697 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
