Cisco Gigabit Switch Router 12008 Installation And Configuration Manual page 226

Performing Other Configuration Tasks
Bit 10 of the software configuration register controls the host portion of the IP broadcast
address. Setting bit 10 causes the processor to use all zeros in the host portion of the IP
broadcast address; clearing bit 10 (the factory default) causes the processor to use all ones.
Bit 10 interacts with bit 14, which controls the network and subnet portions of the IP
broadcast address.
Table 4-6 shows the combined effect of bits 10 and 14.
Table 4-6
Bit 14
Off
Off
On
On
Bits 11 and 12 of the software configuration register determine the line (baud) rate of the
console terminal. Table 4-7 shows the settings in this register that equate to the four
available console baud rates. The factory default transmission rate for the console terminal
is 9600 baud.
Table 4-7
Baud Rate
9600
4800
1200
2400
Bit 13 of the software configuration register determines the system's response to a bootload
failure. Setting bit 13 causes the system to load Cisco IOS software from Flash memory
after five unsuccessful attempts to load a boot file from the network TFTP server. Clearing
4-42
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
Software Configuration Register Settings for Broadcast Address
Destination
Bit 10 Address (net) (host)
Off (ones) (ones)
On (zeros) (zeros)
On (net) (zeros)
Off (net) (ones)
Console Baud Rate Settings
Bit 12 Bit 11
0 0
0 1
1 0
1 1