11
6.2. Enabling Automatic Image Installation and System Configuration ..................................... 163
6.2.1. DHCP Auto Install Process............................................................................................................................... 164
6.2.1.1. Obtaining IP address Information .............................................................................................................. 164
6.2.1.2. Obtaining Other Dynamic Information ....................................................................................................... 164
6.2.1.3. Obtaining the Image ................................................................................................................................... 165
6.2.1.4. Obtaining the Configuration File ................................................................................................................ 165
6.2.2. Monitoring and Completing the DHCP Auto Install Process ........................................................................... 166
6.2.2.1. Saving a Configuration ............................................................................................................................... 167
6.2.2.2. Stopping and Restarting the Auto Install Process ....................................................................................... 167
6.2.2.3. Managing Downloaded Configuration Files ............................................................................................... 167
6.2.3. DHCP Auto Install Dependencies .................................................................................................................... 167
6.2.4. Default Auto Install Values ............................................................................................................................. 168
6.2.5. Enabling DHCP Auto Install and Auto Image Download ................................................................................. 168
6.3. Downloading a Core Dump .................................................................................................. 169
6.3.1. Using NFS to Download a Core Dump ............................................................................................................ 169
6.3.2. Using TFTP or FTP to Download a Core Dump ................................................................................................ 170
6.4. Setting the System Time ...................................................................................................... 170
6.4.1. Manual Time Configuration ............................................................................................................................ 171
6.4.2. Configuring SNTP ............................................................................................................................................ 172
6.5. Configuring System Log Example ......................................................................................... 172
6.5.1. Example 1 to Add Syslog Host ........................................................................................................................ 172
6.5.2. Example 2 to Verify Syslog Host Configuration .............................................................................................. 173
7. Configuring Routing ..................................................................................... 177
7.1. Basic Routing and Features .................................................................................................. 177
7.1.1. VLAN Routing .................................................................................................................................................. 177
7.1.1.1. When to Configure VLAN Routing .............................................................................................................. 178
7.1.2. IP Routing Configuration Example .................................................................................................................. 178
7.1.2.1. Configuring Switch A .................................................................................................................................. 179
7.1.2.2. Configuring Switch B ................................................................................................................................... 180
7.1.3. IP Unnumbered Configuration Example ......................................................................................................... 181
7.2. OSPF 183
7.2.1. Configuring an OSPF Border Router and Setting Interface Costs ................................................................... 184
7.3. VRRP 186
7.3.1. VRRP Operation in the Network ..................................................................................................................... 186
7.3.1.1. VRRP Router Priority ................................................................................................................................... 186
7.3.1.2. VRRP Preemption ........................................................................................................................................ 186