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05.10.2008 at 09:19AM PDT, ID: 23391779
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8.8

Setting up Multiple Public IIP addresses behind cisco router

Zones: Voice Over IP, Network Routers, Network Operations
Tags: Cisco, Cisco Router 2600 series, Cisco Router 2620 Router
Hello and Thank you in advance. I posted a similar question in an earlier post. Still having some problems.

My Goal - I want servers behind router be able to send and recieve Traffic with http port and Sip ports using Public IP Adresses. (If possible All  ports)

Variables -
ip range -  207.xx.xx.0 - 207.xx.xx.8
Default Gateway - 207.xx.xx.1

Any info will be appreciated.

My configuration is posted for more understanding

version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname ccrouter1
!
enable secret 5 $1$7q8K$bCaSjTSta4TTuBSpkdgrl1
enable password XXXXX
!
!
!
!
!
ip subnet-zero
no ip finger
ip name-server 64.xx.xx.xx
ip name-server 64.xx.xx.xx
!
!
!
!
interface FastEthernet0/0
 description Lan
 ip address 192.168.10.1 255.255.255.0
 ip nat inside
 duplex auto
 speed auto
!
interface FastEthernet1/0
 description WAN to Gateway
 ip address 207.xx.xx.2 255.255.255.248
 ip nat outside
 duplex auto
 speed auto
!
router rip
 network 192.168.10.0
 network 207.xx.xx.0
!
ip nat inside source static tcp 192.168.10.4 443 207.xxx.xxx.4 443 extendable
ip nat inside source static udp 192.168.10.4 443 207.xx.xx.4 443 extendable
ip nat inside source static udp 192.168.10.4 5060 207.xx.xx.4 5060 extendable
ip nat inside source static tcp 192.168.10.4 80 207.xx.xx.4 80 extendable
ip nat inside source static tcp 192.168.10.4 5060 207.xx.xx.4 5060 extendable
ip nat inside source static tcp 192.168.10.4 22 207.xx.xx.4 22 extendable
ip classless
ip route 0.0.0.0 0.0.0.0 207.xx.xx.1
no ip http server
!
!
line con 0
 transport input none
line aux 0
line vty 0
 password XXXXX
 login
line vty 1 4
 login
!
no scheduler allocate
end
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Question Stats
Zone: Computer Hardware
Question Asked By: pdarkwah
Solution Provided By: decoleur
Participating Experts: 1
Solution Grade: A
Views: 5
Translate:
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05.10.2008 at 06:25PM PDT, ID: 21541180
decoleur:

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05.10.2008 at 08:10PM PDT, ID: 21541346
pdarkwah:

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05.10.2008 at 09:03PM PDT, ID: 21541429
decoleur:

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05.11.2008 at 01:19AM PDT, ID: 21541807
pdarkwah:

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05.11.2008 at 06:00AM PDT, ID: 21542355
decoleur:

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05.11.2008 at 01:50PM PDT, ID: 21543447
pdarkwah:

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05.11.2008 at 03:08PM PDT, ID: 21543676
decoleur:

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05.11.2008 at 06:26PM PDT, ID: 21544186
pdarkwah:

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05.10.2008 at 06:25PM PDT, ID: 21541180
decoleur:
So, looking at your config does any of it work?

as a brief test you could try to open it up to all ports to confirm that htis issue is not with the server itself.

ip nat inside source static ip 192.168.10.4 207.xx.xx.4

let me know how this works for you,

-t
Accepted Solution
 
05.10.2008 at 08:10PM PDT, ID: 21541346
pdarkwah:

thank you for your response. I tried the configuration line:
ip nat inside source static ip 192.168.10.4 207.xx.xx.4

router gives me an error

ccrouter1#config
Configuring from terminal, memory, or network [terminal]? t
Enter configuration commands, one per line.  End with CNTL/Z.
ccrouter1(config)#ip nat inside source static ip 192.168.10.4 207.xx.xx.4
                                              ^
% Invalid input detected at '^' marker.

ccrouter1(config)#


Am i doing something wrong. Thanks in advance.
 
05.10.2008 at 09:03PM PDT, ID: 21541429
decoleur:
drop the second ip, just type:
ip nat inside source static 192.168.10.4 207.xx.xx.4
Assisted Solution
 
05.11.2008 at 01:19AM PDT, ID: 21541807
pdarkwah:
Thank you again. After entering the correct configuration line, ports are still closed. I can't even ping or trace rt 207.190.208.4.  Is there anything else I have to do?  Thanks in advance.  
 
05.11.2008 at 06:00AM PDT, ID: 21542355
decoleur:
no0thing in your router config would be blocking that traffic after you put in the nat translation. What do the logs say and more specifically do a debug of the NAT translation when you try to send traffic through to verify that it is making it through the router by typing in "debug ip nat" that should show you that traffic coming in on one port is being retranslated and going through.

hope this helps,

-t

Assisted Solution
 
05.11.2008 at 01:50PM PDT, ID: 21543447
pdarkwah:
Thanks again. I have activated NAT debug. this is what I get when i try to ping my server. Still no success. Anything else i am missing?

ccrouter1#ping 207.xx.xx.4

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 207.xx.xx.4, timeout is 2 seconds:

01:14:18: NAT: s=207.xx.xx.2, d=207.xx.xx.4->192.168.10.4 [10].
01:14:20: NAT: s=207.xx.xx.2, d=207.xx.xx.4->192.168.10.4 [11].
01:14:22: NAT: s=207.xx.xx.2, d=207.xx.xx.4->192.168.10.4 [12].
01:14:24: NAT: s=207.xx.xx.2, d=207.xx.xx.4->192.168.10.4 [13].
01:14:26: NAT: s=207.xx.xx.2, d=207.xx.xx.4->192.168.10.4 [14].
Success rate is 0 percent (0/5)
ccrouter1#
 
05.11.2008 at 03:08PM PDT, ID: 21543676
decoleur:
the nat translation is working but it looks like the return traffic isn't making it back, which would mean that it could be a routing issue. or the translated device isn't allowing the traffic to it. take a look at what happens when your traffic goes from the inside out. and what the device does in response to the pings with a packet capture like wireshark, does it see the traffic and send a response?
Assisted Solution
 
05.11.2008 at 06:26PM PDT, ID: 21544186
pdarkwah:
Thank you very much for all the help. I had the wrong ip setup in my server. Everything is ok now. Thank you very much for your Time and Patience.
 
 
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