Cisco RV042G Administration Guide

Configuring a Gateway-to-Gateway VPN Tunnel Between RV0xx Series Routers
Other Design Considerations
Cisco Small Business RV0xx Series Routers Administration Guide 173
D
Other Design Considerations
Before you configure your VPN tunnels, consider the following points about your
network setup.
WAN Setup
The WAN setup pertains to the network that your router connects to outside your
office. The first consideration is the type of IP addresses that you received for
your Internet service at your two sites. As when constructing a physical tunnel or
bridge, you need to know where the VPN tunnel is going.
• If at least one site has a static IP address: A VPN tunnel easily can be
established if at least one of the sites has a static IP address for the WAN
connection. A static IP address is a publicly routable Internet address that
does not change. In this scenario, establishing a VPN tunnel can be
compared to building a bridge between two docks (two sites with static IP
addresses), or even setting a gangplank between a dock and an
unanchored boat (one site with a static IP address and one with a dynamic
IP address).
Figure 3 Gateway To Gateway Tunnel with Static IP Addresses
• If both sites have dynamic IP addresses: A dynamic IP address is a
publicly routable IP address that is issued for your use when you connect to
your service provider’s network. Dynamic IP addresses may change
without warning. In this scenario, establishing a VPN tunnel is like trying to
build a bridge between two unanchored boats. However, you can “anchor”
199468
Site A
RV016
router
RV042
router
Site B
Inside
192.168.1.1/24
Outside
209.165.200.226/24
Outside
209.165.200.236/24
Inside
192.168.2.1/24
Personal
computers
Personal
computers
Printer Printer
Internet

Cisco RV042G Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3az, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
Ethernet LAN (RJ-45) ports	6
Routing protocols	IP, RIP-1, RIP-2
Supported network protocols	PPTP, L2TP, IPSec, PPPoE, DHCP
VPN support	PPTP, Layer 2 Tunneling Protocol (L2TP), IPsec, Dead peer detection (DPD), Internet Key Exchange (IKE), split DNS, VPN backup
Firewall security	Stateful packet inspection (SPI) firewall
Security algorithms	3DES, 128-bit AES, 192-bit AES, 256-bit AES, DES, HTTPS, IPSEC
VPN tunnels quantity	50
Authentication method	SHA-1, MD5
MAC address filtering	-
Certification	FCC Class B, CE Class B, UL, cUL, CB
Input current	1 A
Output voltage	12 V
Storage temperature (T-T)	0 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 85 %
Product color	Black
Rack mounting	No

Weight and Dimensions

Depth	200 mm
Width	130 mm
Height	38.5 mm
Weight	600 g