I've got a question. I configured my cisco to give IP addresses automatically to other PC's on network. The problem is getting a new address or renewing takes a long of time. For example when I run my DHCP server on Linux then renewing and getting times of new addresses takes about few seconds. On Cisco it takes more than 20-30 seconds. Sometimes especially on OS's from Linux branch I've got timeouts and need to tune manually timeouts in dhcp-client.
Can I do something with it ? Are there any tips & tricks to tune dhcp server on Cisco ?
When I configure static IP for some PC's (f.e. servers) getting IP's times are the same.
p.s. Router is new and now it has basic configuration and for the present doesn`t have any ACL and firewall rules yet.
Is your dhcp client connected to a cisco switch? If so make sure port-fast is enabled on all ports that connect PCs. If this is not enabled their will be a delay until the DHCP discover packets are forwarded because the switchport is still going through all its STP timers.