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RV340 router and Static NAT

VMwareLab
Level 1
Level 1

Folks 

 

I m super frustrated. i thought by getting the cisco RV340 router  it will solve my problem by allowing me to create a static NAT for my private vLANs to access internet.

when connecting the RV340 router i got my ISP IP and created the needed vLAN to connect it to a SG300 L3 Switch, created the needed static routes needed to reach the private VLANS to connect to the rest of the network and static router

BUT 

when it came to create a static NAT on the RV340 i needed to provide 

1. Enter the starting IP address of the internal IP address range to map to the public range which is fine so i entered 192.168.0.0 to cover all my VLAN like 192.168.110 and 192.168.100.0

2.Enter the starting IP address of the public IP address range provided by ISP  not including the router WAN IP address in this range which the only thing i got.. I DONT HAVE A RANGE.. since the IP is being obtained/provided via dhcp by the ISP through the bridge mode modem.

3. Select the name of the service, from the drop-down list, to apply for the Static NAT.  so i selected all the service 

4. Select the name of the interface from the drop-down list which is WAN1 port 

 

the only options i have infront of me is to switch my home internet to business internet where i can get 5 static internet IPs from the ISP that i can then use for the range. 

 

what do i do ? or can I use my only ISP network IP ?

 

appreciate any help

 

 

3 Replies 3

balaji.bandi
Hall of Fame
Hall of Fame

check this video should help you.

 

https://www.youtube.com/watch?v=azt7b8hMXHs

 

if you do not have static IP from provider, you can use dynadns for this.

 

BB

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pgrey
Level 1
Level 1

Your ISP IP will work, until it doesn't.
Some let your lease go on for months/years, others tend to rotate them regularly (I have one of each).

 

Like the other poster mentioned, DYNDNS is one way to get a redirect, to a non-actually-static IP, as long as they're using your domain name(s), mapped from DYN.

 

I'm not sure this is necessarily what you're trying to do though?  In fact, I really don't understand the motivation, can you expound a bit on why you want/need a static NAT, for the use-case you mentioned?

BoxzVM
Level 1
Level 1
I have the exact same issue and also purchased a similar Cisco SG350X switch and RV340 router for I suspect a similar purpose! This is for a virtualization home lab.

I don't have public IP list from my ISP, just the WAN IP.

****** Essentially my objective is to allow non default (VLAN1) VLAN's on the SG350X switch to to the internet by way of a Default 0.0.0.0/0 -> On the RouterIP. ******



My Topology is like this:

Router - RV340W Mgmt - 192.168.1.1 VLAN1 (current gateway/dns for 192.168.1.0 LAN, automatically connects to internest for ISP wan)
Switch - 350X Mgmt - 192.168.1.2 VLAN1 (350X GE1-access/L2 port via CAT6 to RV340W-LAN Port 1)

My Cisco 350X VLANs:
VLAN1 - Mgmt 192.168.1.10-200
Switch IPV4 Interface IP: 192.168.1.2

VLAN2 - VM Traffic 10.2.2.2 - 10.2.2.10
Switch IPV4 Interface IP: 10.2.2.1 (Inter VLAN routing on SG350X)

VLAN3 - Storage Network 10.3.3.2 - 10.3.3.10
IPV4 Interface IP: 10.3.3.1 (Inter VLAN routing on SG350X)

Current Static Routes:
Router RV340W -
10.2.2.0 255.255.255.0 192.168.1.2 1 VLAN1
10.3.3.0 255.255.255.0 192.168.1.2 1 VLAN1

Switch 350X Static
0.0.0.0 0 Remote 192.168.1.1 Static 1 1 VLAN 1
IPv4 Auto Forwarding Table:
10.2.2.0 24 Local 10.2.2.1 Directly Connected VLAN 2
10.3.3.0 24 Local 10.3.3.1 Directly Connected VLAN 3


I can currently ping every device from any VLAN on the 350 to any other VLAN/Device or any IP on the router including it's 192.168.1.1.
ie: Ping 192.168.168.1 succesffully from 10.2.2.10

DNS works referencing the the router IP but I cannot ping out or access the internet the IP DNS resolves.

If there is an easier/better way to do this (VM's on other VLANs to get internet access) or something I hadn't considered (due to my amatuer networking skills) any assistance would greatly appreciated!!!

Thanks