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Configuring the Cisco SG 300 Series Managed Switches
Last updated on 3/21/2011
Connecting to the Web Management Interface
...
Only' for incoming packets only, 'Tx Only' for outgoing packets only, or 'Tx and Rx' for both).
Once the correct parameter...
enter a name that briefly describes the VLAN in the 'VLAN Name' field, and click 'Apply'
Note: Each VLAN must be configure...
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Configuration steps for the cisco 300 series switches v3

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Transcript of "Configuration steps for the cisco 300 series switches v3"

  1. 1. Configuring the Cisco SG 300 Series Managed Switches Last updated on 3/21/2011 Connecting to the Web Management Interface 1. Connect to the switch using an Ethernet cable (with the default configuration any port will work) 2. If DHCP is not enabled, give your PC an IP address that is on the same subnet as the switch. By default, no DHCP server is enabled and the switch is assigned the address of 192.168.1.254, so in this case you would give yourself an IP address between 192.168.1.2 and 192.168.1.253 3. In a web browser (IE or Firefox work), navigate to the switch's web interface by typing in its IP address (So for the default configuration you would go to http://192.168.1.254). 4. Type in the switch user name (cisco) and password (See the lab TA/Internal NetLabs Documentation/Marhn Fullmer for the password))) Changing the Default Password 1. Navigate to the switch's web management interface using the directions above. 2. Go to the Administration->User Accounts page shown below, select the 'cisco' user name and then hit the 'Edit' button. 3. Type the new password in the window that appears and hit the 'Apply' button to successfully change the password. Configuring Port/VLAN Mirroring 1. Navigate to the switch's web management interface using the directions above. 2. Go to the Administration->Diagnostics->Port and VLAN Mirroring page and click the 'Add...' button. 3. The window that pops up will ask you for the Destination Port (the port to which traffic should be mirrored), the Source Interface (the port or VLAN to copy traffic from), and the Type ('Rx
  2. 2. Only' for incoming packets only, 'Tx Only' for outgoing packets only, or 'Tx and Rx' for both). Once the correct parameters have been entered, hit the 'Apply' button. 4. Repeat these steps to mirror more ports or VLANs out the destination port. Note: There can only be one port to which traffic is mirrored and a maximum of 8 ports and/or VLANs that traffic can be copied from. After these steps have been completed, the Port and VLAN Mirroring page should look similar to the one below. This picture indicates that incoming and outgoing packets on ports 1 through 8 are mirrored out port 9. 5. The spanning tree protocol must be disabled for the switch to operate correctly. To disable it, navigate to the Spanning Tree->STP Status & Global Settings page. Uncheck the 'enable' box and hit 'Apply...'. 6. Save the running configuration to the startup configuration using the steps below so that the changes will not be lost on the next reboot. Creating a VLAN and Configuring Interfaces to be on it Note: The Cisco SG 300 Series switch supports 256 VLANs including the default VLAN included. 1. Navigate to the switch's web management interface using the directions above. 2. Click VLAN management → Create VLAN 3. When the page is presented, click 'Add' and enter the VLAN number in the 'VLAN ID' field,
  3. 3. enter a name that briefly describes the VLAN in the 'VLAN Name' field, and click 'Apply' Note: Each VLAN must be configured with a unique VID (VLAN ID) with a value from 1 to 4094. The switch reserves VID 4095 as the Discard VLAN. All packets classified to the Discard VLAN are discarded at ingress, and are never forwarded to a port. 4. Navigate to the VLAN Management → Interface Settings page 5. Select a port and click 'Edit...' 6. On the page that appears, select the port for the 'Interface' field, select the appropriate interface mode under the 'Interface VLAN Mode'. If an interface should allow packets on only one VLAN it should be configured as an Access port. Otherwise, it should be left at the default of being a Trunk port. 7. Click 'Apply' to commit the changes. Repeat for all other ports that must be changed. 8. Navigate to the 'Port to VLAN' page. 9. At the top of the page, change the 'VLAN ID' to the VLAN you created and hit the 'Go' button. 10. For each Access port that should be on the VLAN select the 'Untagged' radio button. For each Trunk port that should be on the VLAN select the 'Tagged' radio button. Note: If the Trunk port is configured to 'Accept All' (the default) it can accept Untagged packets from one VLAN and Tagged packets from up to 255 others (limitation of the SG 300 20). If not specified explicitly, the VLAN it accepts Untagged packets on will be the default VLAN. In some cases accepting Untagged packets is a security risk, so the Trunk port can be configured to accept only Tagged packets from all VLANs it is in (by going through all of the VLANs that it is in and checking the 'Tagged' radio box for that interface). 11. At this point the interfaces will have been successfully assigned to the correct VLANs. Save the running configuration to the startup configuration using the steps below so that the changes will not be lost on the next reboot. Saving the running configuration 1. Navigate to the switch's web management interface using the directions above. 2. Go to the Administration->File Management->Copy/Save Configuration page. 3. Select 'Running Configuration' followed by 'Startup Configuration' and then hit the 'Apply' button. The configuration has successfully been saved to the switch and will be used each time the switch is rebooted.

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