Getting the below error, when trying to configure the ip address as an SVI.

Switch(config)#interface vlan 254

Switch(config-if)#ip address

Not a valid host address -


Not sure what am I doing wrong? Or is this some special ip address?

1 Answer 1

2 is reserved by ARIN (SPECIAL-IPV4-FUTURE-USE-IANA-RESERVED). Likely, the switch is rejecting that address because it's part of the pre-1993 class E address range. Many hosts and devices reject that address range as source and even as destination address.


You cannot just use IP addresses unless you are either explicitly entitled to or they are free to use privately (esp. RFC 1918:,,

Of course, you can do what you want inside your own, private network but any address collision will prevent proper routing with an Internet connection.

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