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Difference Between Static and Secure MAC Addresses on Catalyst 2950

Can anyone please explain the difference between 'static' and 'secure' MAC addresses as can be configured in the MAC table of a Catalyst 2950 series switch with the commands :-

static :-

mac-address-table static hw-addr [interface] interface-id [vlan] vlan-id

secure :-

mac-address-table secure address hw-addr interface interface-id vlan vlan-id

These are the commands as described in the Cisco IOS Release 12.4 documentation.

The course I am following also describes the Catalyst 1900 commands 'mac-address-table permanent' and 'mac-address-table restricted static' and I can understand how these work. The latter restricts forwarding of frames to the specified port to be from only certain source ports. I cannot see any parallel with the 2950 commands above.

Thanks in advance for any advice.

1 REPLY
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Re: Difference Between Static and Secure MAC Addresses on Cataly

Difference Between Static and Secure MAC Addresses on Catalyst 2950 are following:

mac-address-table secure : Adds a secure address entry to the address table

mac-address-table static : Adds a static address entry to the address table

If you want to know more please click following URL:

http://www.cisco.com/en/US/docs/switches/lan/catalyst2950/software/release/12.1_11_ea1/command/reference/cli1.html#wp1022304

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