Leased Line configuration on Serial Port (Cisco 1841)

Have a question or want to start a discussion? Post it! No Registration Necessary.  Now with pictures!

Threaded View
Hi all,

Just wondering id some one is able to assit me with setting up 2 x
Cisco 1841 To connect to a Leased Line connection. Details Listed
Below.


Cisco 1841 Have Cisco IOS 12.1 - Also Have Serial Interface Cards
Installed


Site A


Remote Site with a 2mb Leased Line connection
IP Range 10.1.10.1 - 10.1.10.255
Ideally Would Like Router on IP 10.1.10.254
Need To connect to Site B for File / Exchange / DHCP


Site B


Main Site With 2mb Leased Line to Site A - Internet Connectivity
Through Gateway 10.1.15.254
IP Range 10.1.1.1 - 10.1.9.254
DHCP 10.1.14.10
DNS    10.1.14.10  10.1.14.40


Looking for the best way to connect Site A to B with DHCP provided
and
internet through 10.1.15.254



Thanks



Re: Leased Line configuration on Serial Port (Cisco 1841)
setup a gre tunnel between A and B
add static routes on both routers to reach the LAN subnets through the
tunnel
confugure ip helper 10.1.14.10 on LAN interface of A
configure DHCP pool on ROuter B for Router A's LAN subnet
encrypt the tunnel after you get everything working




Quoted text here. Click to load it



Re: Leased Line configuration on Serial Port (Cisco 1841)
I don't understand the reason for GRE tunnel LJ mentions, perhaps I'm
not following what you want to do.

When you say you have a 2Mb leased line and your routers have serial
interfaces, I'm assuming that means there is some sort of multiplexer
that telco is providing you to bond multiple T1s?  Or maybe you just
use E1?   At any rate the serial interfaces below may need more
configuration specific to clocking and framing - but you don't provide
particulars.

Its awfully tough to give you router config without understanding more
of your SITEB setup, but in general ROUTERA is awfully simple to set
up.  It doesn't sound like you have a routing protocol running so
we'll just use a static


ROUTERA:

interface serial 0/0
 description LINK_TO_ROUTERB_2Mb
 ip address 10.50.1.1 255.255.255.252

interface fastethernet 0/0
 ip address 10.1.10.254 255.255.255.0
 ip helper-address 10.1.14.10  (sounds like 10.1.14.10 is a MS DHCP
server of some variety?)

ip route 0.0.0.0 0.0.0.0 10.50.1.2




ROUTERB:

interface serial 0/0
description LINK_TO_ROUTERA_2Mb
ip address 10.50.1.2 255.255.255.252

interface fastethernet 0/0
 description This might not be how your network is laid out, so the
default route below might not make sense if this particular router
doesnt have an interface on 10.1.15.x
 ip address 10.1.15.x


ip route 0.0.0.0 0.0.0.0 10.1.15.254






On Mar 11, 11:49 am, Master of Public Administration
Quoted text here. Click to load it


Site Timeline