Help on Router Configuration

[mycisco_one]

Hello there...

I'm new to router and attached here are my router layout. I already set the ip address as in the layout. i want to add a static route...So could anybody tell me wehere and how to add the static route. i think of adding ip route 0.0.0.0 0.0.0.0 210.187.82.250 on 3Com router and ip route 192.168.0.0 255.255.255.0 210.187.82.225 on Cisco router. Is it right?

One more thing...How to remove a static route on cisco? i already used the command clear ip route * ...but the route is still there..what else should i do?

[stomasko]

according to your drawing they are reversed.

Cisco:

0.0.0.0 0.0.0.0 210.187.82.225

3com

192.168.0.0 255.255.0.0 210.187.82.250

To remove a route statement use the keyword no in front of it. Example

no ip route 1.1.1.1 255.255.255.0 2.2.2.2

Hope that helps.

Steve

[mycisco_one]

thanks Steve...

I'll try that first...If any problem arise, i'll ask u again...

bye

Azha

[mycisco_one]

I tried already...and it seem so good..but i still cannot go to internet.

here are the result:-

From 3Com router:

-ping 192.168.0.1 ok!

-ping 192.168.0.100 ok!

-ping 218.208.69.46 ok!

-ping 218.208.69.45 (serial gateway) ok!

-ping 66.94.230.34/www.yahoo.com ok!

From Cisco router:

-ping 192.168.0.100 ok!

-ping 218.208.69.46 ok!

-ping 218.208.69.45 (serial gateway) ok!

-ping 66.94.230.34/www.yahoo.com ok!

From My PC with IP Add : 192.168.0.100/24 G/Way : 192.168.0.1

-ping 192.168.0.100 ok!

-ping 218.208.69.46 ok!

-ping 218.208.69.45 (serial gateway) Failed!

-ping 66.94.230.34/www.yahoo.com Failed!

Would u help me with the solution..?

tq..

Azha

[spremkumar]

Hi

Would suggest to try NAT in the 3725 router on ther ethernet interface configure ip nat inside command and on the interface facing the 3com router configure ip nat outside command.

do a normal overloading using

ip nat inside source list 1 interface e0 overload

Also configure a access-list numbered 1 to permit the local network which is 192.168.0.0/24 here.

access-list 1 permit 192.168.0.0 0.0.0.255

i feel this will take u up to the internet.

or else do a natting in the 3Com router for this 192.168.0.0/24 network to be natted with one of the public ips either ur serial wan ip or ur local lan

ethernet ip..

check this link for more info..

http://cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a0080091cb9.shtml

regds

[stephtchoko · Accepted solution]

I believe that you pc has a private address which is not know by your isp and can be routed internet.

You have to implement nat on cisco router 3725.

interface fastethernet 0/0 is wan

interface fastethernet 0/1 is wan

There is a configuration example:

access-list 100 permit ip 192.168.0.0 0.0.0.255 any

ip nat inside source list 100 interface 0/0 overload

interface fastethernet 0/0

ip address 210.187.82.250 255.255.255.224

ip nat out

interface fastethernet 0/1

ip address 192.168.0.1 255.255.255.0

ip nat in

To see the translation ouput, you try "show ip nat translation"

Best regards.

[mycisco_one]

thanks stephtchoko...also to all others....

now i'm using my pc trough that routers already to reply this....

Actually my problem haven't settled yet...I nedd to put a sonicwall firewall (hardware) somewhere after the cisco router...

Any suggestion? Where must i put the firewall and what about the IP an so on?

Thanks...

Azha

[eduardo.mendoza]

It seems that you have a subnet of 27 which is a block of 30 IP address. If the Cisco and 3com routers are both in the same location, you may want to eliminate the Cisco router and replace that with your SonicWall. If you decide that you may want to use your Cisco instead and then you will need to re-configure your router to the same config as your 3Com. If both routers are in different location and you need a router, you may want to put your Sonicwall behind the Cisco. Issue one of the IP address in the Ethernet side and assuming you have a T1 or better, your serial IP address will be IP unnumbered so that you can issue your SonicWall the public ip address also. Behind your Sonicwall will be protecting your LAN side.