08-23-2007 08:31 AM - edited 03-03-2019 06:26 PM
I recently purchased an 1841 modular router and need to connect three different networks. One network is the internet, the second network is a remote location, the third network is the local LAN. These are three different subnets and are handed off via RJ45 connections. The 1841 only has two integrated LAN ports. Will I be able to connect these networks together without buying additional cards? If I have to use an additional switch or router I can do that too. Thank you for your help.
Solved! Go to Solution.
08-23-2007 10:53 AM
Hi
subinterfaces created on 1841.
vlans on 2950 eg.
vlan 10 created on 2950
on router
interface fa0/1.10
ip address x.x.x.x
encapsulation dot1q 10
HTH
Jon
08-23-2007 08:49 AM
Possible,
FE A - use for Internet
FE B - connect to a switch & trunk both ends.
Create 2 VLANs. 1 for Remote office & 1 for Local office.
Create 2 subinterfaces & assign the IPs of the Local lan & Remote office respectively.
( These will be the WAN & Gateway for LAN respectivily )
You can also Enable Cisco IOS Firewall functionality for security
HTH - Pls rate if it helps.
08-23-2007 10:17 AM
Thank you for the reply. Can you tell me if a Catalyst 2950 will be able to provide this functionality?
08-23-2007 10:31 AM
Hi
yes the 2950 will support 802.1q trunking.
Jon
08-23-2007 10:52 AM
I forgot to ask if the subinterfaces and VLANS are supposed to be created on the 1841 or 2950. Thank you again for your response.
08-23-2007 10:53 AM
Hi
subinterfaces created on 1841.
vlans on 2950 eg.
vlan 10 created on 2950
on router
interface fa0/1.10
ip address x.x.x.x
encapsulation dot1q 10
HTH
Jon
08-23-2007 12:49 PM
Thanks, just tested it in a lab environment and it works. You guys rock!
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: