How can I enable NAT on cisco 3550 switch?

Question

I've create VLAN with 4 FastEthernet ports assign to it, and set Private IP address to this VLAN. On another FastEthernet port i've set Public IP address. If I connect PC to one of the ports assign to that VLAN, can I connect to the internet with that public IP with cisco 3550 switch?????
Please help.Thx

Answer 1

3550's are a little older, and while they are technically multilayer switches, they do not support NAT/PAT. It's surprising, actually, since they're otherwise very functional and supports all kinds of more advanced operations, but NAT/PAT is a no.

Answer 2

I checked the Network Address Translation Catalyst Switch Support Matrix on

Cisco's website and confirmed that the 3550 does not support NAT.

Answer 3

For the best answers, search on this site https://shorturl.im/axCBK



As long as you're running a flat broadcast domain (no vlans), you can just plug the gigastacks into place, and life will be good. If you have a segmented broadcast domain, you will need to configure trunking along with specifying the trunking type (ie 802.1q)