On Tue, Oct 03, 2000 at 10:23:51AM -0500, Adam Maloney wrote: > No, if he tells the client to ask for a lease time of 3 weeks, the > client sends that during the negotiation. The server can reject that > lease time if it's too long with a NACK followed by another OFFER > with a more plausible lease time. Yep. This is the correct way of doing it. The client *MUST* request an acceptable lease time, by protocol standards. Remember, the server, in most cases, will defer to allowing you to keep your IP if you renew your license at refresh time. The server will give the client fair warning before it thinks the lease will expire. If the client's still there and submits an ACK, the server issues an extended lease. If not, the server drops the lease back into the pool of free IP's. As Adam said, it's bad if you continue to use an IP that the server considers free; at some time the server will reassign the IP to another machine and you WILL have IP collisions. No one will be able to keep a consistent connection. For more info on how to correctly set up your dhcpcd, pump, or dhcpclient, please refer to their respective man pages or read NET3-HOWTO at http://www.linuxdoc.org. For debian users, it's fairly easy to set up dhcp on a given interface: 1. Install your preferred client 2. Configure the client for your preferred NIC ( not needed for debian systems using dhcpcd, if you're not using the init.d script ) 3. Make sure the client daemon does NOT start from init.d scripts. bash# update-rc.d -f dhcpcd remove 4. Edit your /etc/network/interfaces file to have a line like the following. ############################################################## # Added for eth0 (see interfaces(5)) iface eth0 inet dhcp ####################################################### # DHCP options #<pump,dhcpcd># #hostname iwantthisone #<pump># #leasehours leasetime #<dhcpcd># #leasetime leasetime #<dhcpcd># #vendor vendor #<dhcpcd># #client client_id ####################################################### # Nice way to add interface specific scripts (ipchains, # ipmasqadm, tunneling scripts, etc.) Executes these as # they come, though a neat way to do it is to use # run-parts on a *.d directory # #{pre-up|up|down|post-down} command pre-up run-parts /etc/interfaces/eth0_pre-up.d || true up run-parts /etc/interfaces/eth0_up.d || true down run-parts /etc/interfaces/eth0_down.d || true post-down run-parts /etc/interfaces/eth0_post-down.d || true # end file snippit ############################################################## 5. Execute "/etc/init.d/networking restart", or use "ifdown eth0; ifup eth0" Violla... -- Chad "^chewie, gunnarr" Walstrom <chewie at wookimus.net> http://wookimus.net/chewie -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 233 bytes Desc: not available Url : http://shadowknight.real-time.com/pipermail/tclug-list/attachments/20001003/09090041/attachment.pgp -------------- next part -------------- --------------------------------------------------------------------- To unsubscribe, e-mail: tclug-list-unsubscribe at mn-linux.org For additional commands, e-mail: tclug-list-help at mn-linux.org