I own a Cisco 892W router. The router has 2 WAN ports and 8 switch ports.
Now I know -
-WAN ports can create sub interfaces, assigne IPs, cannot be assigned to a VLAN - sounds very much like a routing port. (sh interface gives - Hardware is PQII_PRO_UEC)
-Switch ports are for VLAN assignment, trunking, IP assigment etc,. (sh interface gives Hardware is Fast Ethernet)
I know they are different but at the same time confuced what the difference are? I also know on some 3xxx series switchs you could say "no switchport" and translate a switch port to a layer 3 port. But on 892W you can't do this? Struggeling to understand the difference.
Appreciate if someone could help me understand this
Thanks in advance,
The two WAN ports what you are saying are L3 ports which means you can assign IP and configure sub-interfaces for different networks nothing but VLAN's
And you can terminate the WAN link (ethernet handoff from provider) can connect to these ports and do routing.
The remaining 8 switch ports, it is actually a switch module available on that router, these are L2 ports you can not assign any Ip address to it neither do subinterfaces.
The two WAN ports are designed only for WAN network purpose thus do L3 job also.
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