1604 Initial Configuration - Novice Needs Help!

[mjmuller77]

Hello,

We just got a 1604 and need to set it up, however, we have no idea how to setup a Cisco router. I downloaded the "Cisco 1604 Configuration" doc from the support site, but it does not have all of the information I need.

This router will sit between our ISP T1 router and a switch on our network. I need to pass our public IP addresses through this router, changing only the network address because I have computers that cannot be changed.

I have setup budget home routers before, but nothing as advanced as this Cisco 1604. I need to specify the WAN IP address, mask and gateway, as well as the LAN IP address and mask. If possible, I also would like to route Internet traffic through 2 different routers based on source IP address (not priority.)

Any help, suggestions or links will be greatly appreciated!

Thanks in advance,

Micah

[spremkumar]

Hi

need some calrifications as u mentioned ISP T1 router, is that owned by u & placed in ur premises or owned by ISP in ISPs premises ?

if its in ur premises and if u r goin to add one more 1604 ,would like to know which requrirement has driven u to get the new one in place(just for info sake).

pls try to post ur topo properly to hve more peopl to feed their inputs too..

regds

prem

[mjmuller77]

Thanks for the reply, spremkumar.

The ISP T1 router is placed in our premises and connects to the T1 hicap from the phone company. I'm not sure who owns the router.

We got a new router in addition to the ISP T1 (not in place of) to change the LAN settings because there are PCs for which I cannot change the IP settings. We are a travel agency, so the travel agents connect to the airline reservation system through one line (Cisco 831 and separate DSL line) and their Internet traffic as well as all traffic for the rest of the office goes through the T1. The travel agents IP settings cannot be changed, because of their connection to the airline reservation system.

We recently moved offices and along with that came a new block of IP addresses, as well as a new mask. I need to match our current settings in the office to our new IP settings from our ISP. Since I don't have access to the T1 router, I cannot configure that to use our current settings (even if I knew how.)

I hope this provides the info you need.

What do you mean by "pls try to post ur topo properly"? What should I have done differently? Forgive the ignorance; first time on this board.

Thanks again!

Micah

[spremkumar]

Hi

I meant to post the simple block diagram(basic topology)of your present network connecitivity.

as far as i understood from ur post u dont want to change the ip block of the travel agents and u want to introduce the 1604 in between u r ISP router and local lan.is that right ??

Currently hows u r local lan connected to ISP router ??

is that directly connected via Switch ?

whts ur plan of connecitivity between ur ISP router and ur 1604 ?

r u going to use ethernet to ethernet or any back to back wan port connectivity ?

btw u have mentioned 831 and a dsl connecitivity for airline reserv system and wheres tht kept ??

regds

prem

[mjmuller77]

The diagram of what I am trying to accomplish is the attached .jpg file.

Yes, the 1604 will be between our ISP router and local LAN. On the ISP router side will also be another router that the travel agents use to connect to the airline reservation system. Because the 1604 will point to either one of two ISP routers, I need a switch between the routers and the 1604.

I cannot change the agents' IP addresses because of their connectivity with the airline res. system, so yes, I am introducing the 1604 for the "liaison" between the LAN and the ISP router.

Because the DSL circuit the agents use to connect can also be used for Internet, I want to route the agents' Internet traffic through the 1604. I cannot use the 831 because it only allows res. system traffic. I am using a persistent route statement on the agents' computers for this.

All traffic for the rest of the office will go out through the 1604 and then the ISP T1 Router.

The agents' res. traffic goes through the 831 then the DSL Modem. The agents' internet traffic will go through the 1604 then the DSL Modem.

I hope this makes sense, ask me if you need more clarification.

Thanks for your time and attention!

Micah

[Lirin_Patel]

Hi,

Ok i think i almost got this.

but i need to ask you some questions.

you have two ISP connections ?

you want 831 just for agents traffic

but the agents internet traffic should go through 1604 ?

you need to keep public ip address for agent?

[mjmuller77]

Yes, we have 2 ISP connections.

Yes, the agents' airline res. traffic goes through the 831; I want the agents' Internet (browsing, e-mail) traffic to go through the 1604. All agent traffic needs to go out to the Internet through the AT&T DSL connection.

Yes, I need to keep the agents' public IP addresses the same.

Thanks!

Micah

[spremkumar]

Hi

On seeing the jpg file i understood that u r requirement is Airline Resv Sys traffic via 831 and internet traffic via 1604(i.,browsin,mailing).

since u have mentioned that u r Airline Res Sys is placed somewhere in internet u can use a proxy server and policy based routing in ur 831 for accessing mails,browsing.

For your proxy ip u can hve the static route in 1604 if its unreachble from 1604.

(AFAIK & as per u r requirement of having 1604 for internet and 831 for application wont work out here since u need to put reverse routes for your (agents)local block on these routers,as well on the isps router.it will go on a loop and ur incoming traffic from internet will be affected.)

So for internet browsing for agents u can use proxy and in 831 u can do a source based routing mentioning that packets matching ur proxy ip to anywhere can be forwarded to 1604 ethernet and remember ur t1isp adds a host based route in their router for this proxy ip.

i guess you own this ip block of agents,if its owned by other than the t1 isp i dont think they would be adding all these stuffs in their router.

This is just one of the ways out to achieve ur requirement..if u need any clarification do revert.

regds

prem

[Lirin_Patel]

Hi,

Try this

put you computer and servers in diffrent vlans and route between them.

switch has 2 vlans

router 801 configs

ip route 0.0.0.0 0.0.0.0 int s0/0

int f0/0.2

encap ISL vlan 2

ip policy-map route-map internet traffic

ip add your private

int f0/0.3

encap isl vlan 3

ip address 192.168.10.1 255.255.255.0

router rip

net 192.168.10.0

net private

no-auto

route-map internet permit 10

match ip 101

set nex hop 192.168.10.2

acc-list 101 permit any any eq www

router 1604

int s0/0

ip nat outside

int e0/0

ip address 192.168.10.2

ip nat inside

ip nat inside source route map all int s0/0 overload

route-map any permit 10

match ip address 1

acc-list 1 permit any any

[Lirin_Patel]

i for got the default rt 1600 router

ip route 0.0.0.0 0.0.0.0 int s0