Example Configuration - Cisco 3845 - Security Bundle Router Software Manual

Assigning Switch Information
Note The switch broadcasts TFTP server requests if the TFTP server is not obtained from the DHCP replies,
if all attempts to read the configuration file through unicast transmissions fail, or if the TFTP server
name cannot be resolved to an IP address.

Example Configuration

Figure 3-3
autoconfiguration.
Figure 3-3
Cisco router
Table 3-2
Table 3-2 DHCP Server Configuration
Binding key (hardware address)
IP address
Subnet mask
Router address
DNS server address
TFTP server name
Boot filename (configuration file)
(optional)
Hostname (optional)
Cisco ME 3800X and 3600X Switch Software Configuration Guide
3-10
After obtaining its hostname from the default configuration file or the DHCP reply, the switch reads
the configuration file that has the same name as its hostname (hostname-confg or hostname.cfg,
depending on whether network-confg or cisconet.cfg was read earlier) from the TFTP server. If the
cisconet.cfg file is read, the filename of the host is truncated to eight characters.
If the switch cannot read the network-confg, cisconet.cfg, or the hostname file, it reads the
router-confg file. If the switch cannot read the router-confg file, it reads the ciscortr.cfg file.
shows a sample network for retrieving IP information by using DHCP-based
DHCP-Based Autoconfiguration Network Example
Switch 1
00e0.9f1e.2001
10.0.0.10
DHCP server
shows the configuration of the reserved leases on the DHCP server.
Switch A
00e0.9f1e.2001
10.0.0.21
255.255.255.0
10.0.0.10
10.0.0.2
tftpserver or
10.0.0.3
switcha-confg
switcha
Chapter 3
Switch 2 Switch 3
00e0.9f1e.2002 00e0.9f1e.2003
10.0.0.1 10.0.0.2
DNS server
Switch B
00e0.9f1e.2002
10.0.0.22
255.255.255.0
10.0.0.10
10.0.0.2
tftpserver or
10.0.0.3
switchb-confg
switchb
Assigning the Switch IP Address and Default Gateway
Switch 4
00e0.9f1e.2004
10.0.0.3
TFTP server
(tftpserver)
Switch C Switch D
00e0.9f1e.2003 00e0.9f1e.2004
10.0.0.23 10.0.0.24
255.255.255.0 255.255.255.0
10.0.0.10 10.0.0.10
10.0.0.2 10.0.0.2
tftpserver or tftpserver or
10.0.0.3 10.0.0.3
switchc-confg switchd-confg
switchc switchd
OL-23400-01