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... Address and Default Gateway 5-1 Understanding the Boot Process 5-1 Assigning Switch Information 5-2 Default Switch Information 5-3 Understanding DHCP-Based Autoconfiguration 5-3 DHCP Client Request Process 5-4 Configuring DHCP-Based Autoconfiguration 5-5 DHCP Server Configuration Guidelines 5-5 Configuring the TFTP Server 5-6 Configuring the DNS 5-7 Configuring the Relay Device 5-7 Obtaining ..., and Host Name 6-3 ConfigID 6-3 DeviceID 6-4 Host Name and DeviceID 6-4 Using Host Name, DeviceID, and ConfigID 6-4 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide vi 78-11380-10
... Address and Default Gateway 5-1 Understanding the Boot Process 5-1 Assigning Switch Information 5-2 Default Switch Information 5-3 Understanding DHCP-Based Autoconfiguration 5-3 DHCP Client Request Process 5-4 Configuring DHCP-Based Autoconfiguration 5-5 DHCP Server Configuration Guidelines 5-5 Configuring the TFTP Server 5-6 Configuring the DNS 5-7 Configuring the Relay Device 5-7 Obtaining ..., and Host Name 6-3 ConfigID 6-3 DeviceID 6-4 Host Name and DeviceID 6-4 Using Host Name, DeviceID, and ConfigID 6-4 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide vi 78-11380-10
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...Configuring Voice VLAN 19-2 Default Voice VLAN Configuration 19-2 Voice VLAN Configuration Guidelines 19-3 Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3 Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4 Configuring Ports to Carry Voice Traffic... DHCP Snooping Configuration 20-8 Configuring IGMP Snooping and MVR 21-1 Understanding IGMP Snooping 21-1 IGMP Versions 21-2 Joining a Multicast Group 21-3 Leaving a Multicast Group 21-4 Immediate-Leave Processing 21-5 IGMP Report Suppression 21-5 Source-Only Networks 21-5 xviii Catalyst 2950 and Catalyst 2955 Switch Software...
...Configuring Voice VLAN 19-2 Default Voice VLAN Configuration 19-2 Voice VLAN Configuration Guidelines 19-3 Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3 Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4 Configuring Ports to Carry Voice Traffic... DHCP Snooping Configuration 20-8 Configuring IGMP Snooping and MVR 21-1 Understanding IGMP Snooping 21-1 IGMP Versions 21-2 Joining a Multicast Group 21-3 Leaving a Multicast Group 21-4 Immediate-Leave Processing 21-5 IGMP Report Suppression 21-5 Source-Only Networks 21-5 xviii Catalyst 2950 and Catalyst 2955 Switch Software...
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... startup with IP address information and a configuration file that it receives during DHCP-based autoconfiguration Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-3 Catalyst 2950 LRE switches - Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches running Cisco IOS Release 12.1(6)EA2 or later - For the CMS, software, and browser requirements and for...
... startup with IP address information and a configuration file that it receives during DHCP-based autoconfiguration Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-3 Catalyst 2950 LRE switches - Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches running Cisco IOS Release 12.1(6)EA2 or later - For the CMS, software, and browser requirements and for...
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... the switch and other Cisco devices on the network • Network Time Protocol (NTP) for providing a consistent time stamp to all Ethernet ports for network topology discovery and mapping between redundant uplinks, including Gigabit uplinks and cross-stack Gigabit uplinks Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-4 78-11380-10 Features Chapter 1 Overview Note DHCP...
... the switch and other Cisco devices on the network • Network Time Protocol (NTP) for providing a consistent time stamp to all Ethernet ports for network topology discovery and mapping between redundant uplinks, including Gigabit uplinks and cross-stack Gigabit uplinks Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-4 78-11380-10 Features Chapter 1 Overview Note DHCP...
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...on 10/100/1000 ports - Features Chapter 1 Overview • DHCP snooping to filter untrusted DHCP messages between untrusted hosts and DHCP servers (available only with the EI) • Multilevel security for... marking priorities on all switch ports. Support for IEEE 802.1p CoS scheduling for strict priority and weighted round-robin (WRR) CoS policies Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-6...to a specific traffic flow - Out-of-profile markdown for allocating the amount of a Cisco IP Phone, trust the CoS value received, and ensure port security. If the IP ...
...on 10/100/1000 ports - Features Chapter 1 Overview • DHCP snooping to filter untrusted DHCP messages between untrusted hosts and DHCP servers (available only with the EI) • Multilevel security for... marking priorities on all switch ports. Support for IEEE 802.1p CoS scheduling for strict priority and weighted round-robin (WRR) CoS policies Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-6...to a specific traffic flow - Out-of-profile markdown for allocating the amount of a Cisco IP Phone, trust the CoS value received, and ensure port security. If the IP ...
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... Phones are configured for a network of inter-VLAN routing and allows the router to focus on the Catalyst 2950 switches. You can manage a cluster through , twisted-pair cable with workstations running Cisco CallManager software, a DHCP server, or an IP/TV multicast server). The Gigabit connections to a server farm provide the workgroups full access to segment...
... Phones are configured for a network of inter-VLAN routing and allows the router to focus on the Catalyst 2950 switches. You can manage a cluster through , twisted-pair cable with workstations running Cisco CallManager software, a DHCP server, or an IP/TV multicast server). The Gigabit connections to a server farm provide the workgroups full access to segment...
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... Setup program, through the command-line-interface (CLI)-based setup program, through a DHCP server, or manually by using the XMODEM Protocol, recover from Lost or Forgotten Passwords on Catalyst 2955 Switches" section on . You also have connected a PC or terminal to the console ... reset or power-on page 32-8. The Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-2 78-11380-10 Non-LRE Catalyst 2950 switches running a release prior to Cisco IOS Release 12.1(14)EA1 and Catalyst 2950 LRE switches running a release prior to Cisco IOS Release 12.1(19)EA1 do not connect...
... Setup program, through the command-line-interface (CLI)-based setup program, through a DHCP server, or manually by using the XMODEM Protocol, recover from Lost or Forgotten Passwords on Catalyst 2955 Switches" section on . You also have connected a PC or terminal to the console ... reset or power-on page 32-8. The Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-2 78-11380-10 Non-LRE Catalyst 2950 switches running a release prior to Cisco IOS Release 12.1(14)EA1 and Catalyst 2950 LRE switches running a release prior to Cisco IOS Release 12.1(19)EA1 do not connect...
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.... DHCP is defined. Chapter 5 Assigning the Switch IP Address and Default Gateway Assigning Switch Information CLI-based setup program also allows you are defined. No default gateway is built on Catalyst 2955 switches. The factory-assigned default host name is Switch. This... protocol consists of IP information after the server is automatically configured at startup with IP address information and a configuration file. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software ...
.... DHCP is defined. Chapter 5 Assigning the Switch IP Address and Default Gateway Assigning Switch Information CLI-based setup program also allows you are defined. No default gateway is built on Catalyst 2955 switches. The factory-assigned default host name is Switch. This... protocol consists of IP information after the server is automatically configured at startup with IP address information and a configuration file. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software ...
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...DHCPOFFER unicast message. In a DHCPREQUEST broadcast message, the client returns a formal request for your switch. If the DHCP server is running on a different LAN than the switch. In this message, the client and server are invalid (a configuration error exists), the client ...The DHCP server confirms that are using DHCP to configure the DHCP server for the configuration file. The amount of messages that the IP address has been allocated to the client by returning a DHCPACK unicast message to locate a DHCP server. Catalyst 2950 and Catalyst 2955 Switch Software...
...DHCPOFFER unicast message. In a DHCPREQUEST broadcast message, the client returns a formal request for your switch. If the DHCP server is running on a different LAN than the switch. In this message, the client and server are invalid (a configuration error exists), the client ...The DHCP server confirms that are using DHCP to configure the DHCP server for the configuration file. The amount of messages that the IP address has been allocated to the client by returning a DHCPACK unicast message to locate a DHCP server. Catalyst 2950 and Catalyst 2955 Switch Software...
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... with reserved leases that are bound to each switch by the switch) (required) 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-5 The offer from the DHCP server is not a guarantee that the client has been slow in the Cisco IOS IP and IP Routing Configuration Guide for Cisco IOS Release 12.1 for additional information about...
... with reserved leases that are bound to each switch by the switch) (required) 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-5 The offer from the DHCP server is not a guarantee that the client has been slow in the Cisco IOS IP and IP Routing Configuration Guide for Cisco IOS Release 12.1 for additional information about...
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... and subnet mask are configured. Normally, if the DHCP and TFTP servers are not found, the switch might send broadcast, instead of other lease options does not affect autoconfiguration. Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-6 78-11380-10 If you ...do not configure the DHCP server with these files: • The configuration file named in the DHCP reply (the actual switch configuration file). • The network...
... and subnet mask are configured. Normally, if the DHCP and TFTP servers are not found, the switch might send broadcast, instead of other lease options does not affect autoconfiguration. Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-6 78-11380-10 If you ...do not configure the DHCP server with these files: • The configuration file named in the DHCP reply (the actual switch configuration file). • The network...
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... helper-address 10.0.0.1 Figure 5-2 Relay Device Used in the lease database of the DNS servers in Autoconfiguration Switch (DHCP client) Cisco router (Relay) 10.0.0.1 10.0.0.2 20.0.0.1 20.0.0.2 20.0.0.3 20.0.0.4 DHCP server TFTP server DNS server 49068 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-7 For example, in Figure 5-2, configure the router interfaces as the...
... helper-address 10.0.0.1 Figure 5-2 Relay Device Used in the lease database of the DNS servers in Autoconfiguration Switch (DHCP client) Cisco router (Relay) 10.0.0.1 10.0.0.2 20.0.0.1 20.0.0.2 20.0.0.3 20.0.0.4 DHCP server TFTP server DNS server 49068 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-7 For example, in Figure 5-2, configure the router interfaces as the...
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... the network-confg, cisconet.cfg, or the hostname file, it reads the ciscortr.cfg file. Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-8 78-11380-10 The configuration filename is reserved for the switch and provided in the DHCP reply. After obtaining its host name from the base directory of the server, and upon receipt...
... the network-confg, cisconet.cfg, or the hostname file, it reads the ciscortr.cfg file. Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-8 78-11380-10 The configuration filename is reserved for the switch and provided in the DHCP reply. After obtaining its host name from the base directory of the server, and upon receipt...
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...maps the TFTP server name tftpserver to /tftpserver/work / prompt> ls network-confg switcha-confg 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-9 This directory contains the network-confg file used in this display: prompt> cd /tftpserver/...name to be assigned to the switch based on the DHCP server. Figure 5-3 DHCP-Based Autoconfiguration Network Example Switch 1 Switch 2 Switch 3 Switch 4 00e0.9f1e.2001 00e0.9f1e.2002 00e0.9f1e.2003 00e0.9f1e.2004 Cisco router 10.0.0.10 10.0.0.1 10.0.0.2 10.0.0.3 111394 DHCP server DNS server TFTP server ...
...maps the TFTP server name tftpserver to /tftpserver/work / prompt> ls network-confg switcha-confg 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 5-9 This directory contains the network-confg file used in this display: prompt> cd /tftpserver/...name to be assigned to the switch based on the DHCP server. Figure 5-3 DHCP-Based Autoconfiguration Network Example Switch 1 Switch 2 Switch 3 Switch 4 00e0.9f1e.2001 00e0.9f1e.2002 00e0.9f1e.2003 00e0.9f1e.2004 Cisco router 10.0.0.10 10.0.0.1 10.0.0.2 10.0.0.3 111394 DHCP server DNS server TFTP server ...
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... set. Once the default gateway is installed. Verify the configured IP address. 5-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Assigning Switch Information Chapter 5 Assigning the Switch IP Address and Default Gateway switchb-confg switchc-confg switchd-confg prompt> cat network-confg...switch1 10.0.0.21 ip host switch2 10.0.0.22 ip host switch3 10.0.0.23 ip host switch4 10.0.0.24 DHCP Client Configuration No configuration file is present on Switch A through D retrieve their configuration files and IP addresses in the same way. Return to global...
... set. Once the default gateway is installed. Verify the configured IP address. 5-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Assigning Switch Information Chapter 5 Assigning the Switch IP Address and Default Gateway switchb-confg switchc-confg switchd-confg prompt> cat network-confg...switch1 10.0.0.21 ip host switch2 10.0.0.22 ip host switch3 10.0.0.23 ip host switch4 10.0.0.24 DHCP Client Configuration No configuration file is present on Switch A through D retrieve their configuration files and IP addresses in the same way. Return to global...
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If the variable is not set, the switch attempts to read and write a nonvolatile copy of the system configuration. Specifying the Filename to Read and Write the System Configuration By default, the Cisco IOS software uses the file config.text to load and execute... be loaded during the next boot cycle. Configured switches use the config.text file stored on page 5-3. For more information, see the "Understanding DHCP-Based Autoconfiguration" section on the system board in the configuration file. 5-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
If the variable is not set, the switch attempts to read and write a nonvolatile copy of the system configuration. Specifying the Filename to Read and Write the System Configuration By default, the Cisco IOS software uses the file config.text to load and execute... be loaded during the next boot cycle. Configured switches use the config.text file stored on page 5-3. For more information, see the "Understanding DHCP-Based Autoconfiguration" section on the system board in the configuration file. 5-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
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... the TFTP server. Figure 6-2 Initial Configuration Overview IE2100 Configuration Registrar V WAN TFTP server DHCP server Distribution layer DHCP relay agent default gateway 71445 Access layer switches 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 6-5 The CNS configuration agent feature supports the switch by providing: • Initial configurations • Incremental (partial) configurations • Synchronized configuration...
... the TFTP server. Figure 6-2 Initial Configuration Overview IE2100 Configuration Registrar V WAN TFTP server DHCP server Distribution layer DHCP relay agent default gateway 71445 Access layer switches 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 6-5 The CNS configuration agent feature supports the switch by providing: • Initial configurations • Incremental (partial) configurations • Synchronized configuration...
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... address • Enable DHCP relay agent • IP routing (if used as default gateway) • IP address assignment • TFTP server IP address • Path to bootstrap configuration file on the Configuration Registrar, refer to the Cisco Intelligence Engine 2100 Series Configuration Registrar Manual. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide...
... address • Enable DHCP relay agent • IP routing (if used as default gateway) • IP address assignment • TFTP server IP address • Path to bootstrap configuration file on the Configuration Registrar, refer to the Cisco Intelligence Engine 2100 Series Configuration Registrar Manual. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide...
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... to map the name to six name servers. You can dynamically assign device names that separates an unqualified name from a BOOTP or DHCP server, then the default domain name might be set up to an IP address. Separate each server address with this information). The ... the primary server first. If that contains no domain name is the primary server. Verify your entries. (Optional) Save your switch. If you configure a hostname that query fails, the backup servers are configured. The default 8-18 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
... to map the name to six name servers. You can dynamically assign device names that separates an unqualified name from a BOOTP or DHCP server, then the default domain name might be set up to an IP address. Separate each server address with this information). The ... the primary server first. If that contains no domain name is the primary server. Verify your entries. (Optional) Save your switch. If you configure a hostname that query fails, the backup servers are configured. The default 8-18 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
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....1x is disabled until all defined methods are attempted. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-11 Decrease the settings for 802.1x changed from a Previous Software Release In Cisco IOS Release 12.1(14)EA1, the implementation for the 802.1x authentication process...configuration commands, and new commands were added. If 802.1x was running the Cisco Access Control Server (ACS) application for restarting the 802.1x authentication process on the switch before the DHCP process on the client times out and tries to reconfigure it is supported only...
....1x is disabled until all defined methods are attempted. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-11 Decrease the settings for 802.1x changed from a Previous Software Release In Cisco IOS Release 12.1(14)EA1, the implementation for the 802.1x authentication process...configuration commands, and new commands were added. If 802.1x was running the Cisco Access Control Server (ACS) application for restarting the 802.1x authentication process on the switch before the DHCP process on the client times out and tries to reconfigure it is supported only...