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Buy a cheap 5 port gig switch.<br />
They're under $30 bucks these days.
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Buy a cheap 5 port gig switch.
They're under $30 bucks these days.

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Not sure about your current or planned network design or what you are trying to accomplish, but generally that can be done. On Cisco routers there is no strict WAN port. For example, you could have only one port on the switch and you could have it configured as WAN and LAN at the same time by configuring subinterfaces on that 1 interface. Then you can configure one of the subinterfaces as WAN and the rest as LAN interfaces. If under LAN you are mean transparent bridging, router ports can be configured to perform switching instead of routing by configuring irb feature.<br />
<a href="https://www.cisco.com/c/en/us/support/docs/lan-switching/integrated-routing-bridging-irb/17054-741-10.html" rel="ugc">Understanding and Configuring VLAN Routing and Bridging on a Router Using the IRB Feature </a>
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Not sure about your current or planned network design or what you are trying to accomplish, but generally that can be done. On Cisco routers there is no strict WAN port. For example, you could have only one port on the switch and you could have it configured as WAN and LAN at the same time by configuring subinterfaces on that 1 interface. Then you can configure one of the subinterfaces as WAN and the rest as LAN interfaces. If under LAN you are mean transparent bridging, router ports can be configured to perform switching instead of routing by configuring irb feature.
Understanding and Configuring VLAN Routing and Bridging on a Router Using the IRB Feature [https://www.cisco.com/c/en/us/support/docs/lan-switching/integrated-routing-bridging-irb/17054-741-10.html]

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Hai frnds,<br />
i have cisco 4321 router , there are only 2 gi etharnet ports,can i convert wan port into Lan port ?
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Hai frnds,
i have cisco 4321 router , there are only 2 gi etharnet ports,can i convert wan port into Lan port ?

how to change wan port into lan port in the case of Router ?

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

Networking Hardware-Other

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.