Guys, I am trying to configure a 2600 (12.2) with two fast ethernet ports to operate as a basic router to provide users with Internet access but I am having a problem. The f0/0 interface is 10.0.0.1 and connected to a PC 10.0.0.2 that is using 10.0.0.1 as its gateway. Interface f0/1 is connected to an ADSL modem and have an address of 192.168.1.70. The router can ping internet addresses therefore the connection between it and the outside world is working. The PC can ping both router ip addresses but not the address of the ADSL modem (192.168.1.200) or any other external addresses.
I have added the ip route 0.0.0.0 0.0.0.0 192.168.1.200 to set a default route but stil no luck. Can anyone offer any further suggestions? I thought that this would be all I needed to do!
I was hoping not to need to use NAT. What I wish to be able to do is to allow all traffic in either direction without anything being blocked or redirected. I have been having some problems with SIP and wish to use a basic routing connection to test.
Ok, in the real life scenario (I am testing internally here first) I will have a public address assigned to f0/1 interface and 192.168.1.1 assigned to the f0/0 interface.
I assume I will still need NAT in this scenario as well but how can I configure the router to allow full access from either side to the other?
The problem I am having with a NAT firewall currently in place is that it is blocking incoming traffic as the response to some of the SIP requests come back on different ports. I am trying to open everything to test if the problem is with the current Router/Firewall or something else.
Hi, IOS has a sophisticated ALG algorithms so that when sessions are started from inside to outside, translations will be dynamically opened as necessary for the necessary duration. SIP is included in the that.
Then you can have static translation to expose something internal permanently. Other needs should be seen on a case by cases basis.
If you don't want nat at all, get an ISP that is able to assign you a subnet with public address.
Ok, I will try this router using NAT as you suggested and see how it goes. I am getting the impression that I am going to have to purchase a SIP compliant firewall to work in this configuration. Thanks for your help.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.