Solved

Port blocked on router end

Posted on 2012-03-10
3
444 Views
Last Modified: 2012-03-10
Hi guys,

Port 80 is supposedly block but not by my ISP. I confirmed with ISP that it has been open. I dont have a firewall and was wondering if my cisco 2650 router can block port 80.

See config below and let me know if anything needs to be fixed.



2650Router#sho run
Building configuration...

Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 2650Router
!
enable
!
username
!
!
!
!
ip subnet-zero
ip domain-name .com
ip name-server 4.2.2.2
!
!
!
!
interface FastEthernet0/0
 description INTERNAL LAN PORT
 mac-address xxxx
 ip address 10.10.10.60 255.255.255.0
 ip nat inside
 duplex auto
 speed auto
!
interface Serial0/0
 no ip address
 shutdown
!
interface Serial0/1
 no ip address
 shutdown
!
interface Ethernet1/0
 description INTERNET LAN PORT
 ip address xxxx 255.255.255.248
 ip nat outside
!
interface Ethernet1/1
 no ip address
 shutdown
!
interface Ethernet1/2
 no ip address
 shutdown
!
interface Ethernet1/3
 no ip address
 shutdown
!
ip nat inside source list NAT-ADDRESSES interface Ethernet1/0 overload
ip nat inside source static tcp 10.10.10.90 25 interface Ethernet1/0 25
ip classless
ip route 0.0.0.0 0.0.0.0 xxxx
no ip http server
!
!
ip access-list standard NAT-ADDRESSES
 permit 10.10.0.0 0.0.255.255
 permit 10.10.10.0 0.0.0.255
 permit 10.10.20.0 0.0.0.255
!
line con 0
 exec-timeout 30 0
 password
 logging synchronous
 login local
 transport input none
line aux 0
line vty 0 4
 exec-timeout 30 0
 password
 logging synchronous
 login local
!
no scheduler allocate
end


Do I have to do a NAT? If so, what is the cmd.

Thanks
0
Comment
Question by:vmagan
3 Comments
 
LVL 34

Accepted Solution

by:
Istvan Kalmar earned 500 total points
ID: 37705488
Hi,

you need:

ip nat inside source static tcp 10.10.10.90 80 interface Ethernet1/0 80
0
 
LVL 26

Expert Comment

by:akahan
ID: 37705879
Your router blocks unsolicited packets on EVERY port, unless you specifically open them.
0
 
LVL 6

Author Closing Comment

by:vmagan
ID: 37706056
That did it. Thanks
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

It happens many times that access list (ACL) have to be applied to outgoing router interface in order to limit some traffic.This article is about how to test ACL from the router which is not very intuitive for everyone. Below scenario shows simple s…
Quality of Service (QoS) options are nearly endless when it comes to networks today. This article is merely one example of how it can be handled in a hub-n-spoke design using a 3-tier configuration.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question