Re: How to configure multiple range port forwarding?

shinya hiura · ‎09-04-2013

Hello everyone!

I am facing critical issue for multiple range and destination of port forwarding.

I would like to configure NAPT as below.

LAN destination addresses WAN address

192.168.0.102 port range 16000 16511 10.0.0.1 port range 16000 16511

192.168.0.103 port range 16512 17023 10.0.0.1 port range 16512 17023

192.168.0.104 port range 17024 17535 10.0.0.1 port range 17024 17535

192.168.0.105 port range 17534 18047 10.0.0.1 port range 17534 18047

I have tried as following config, but it doesn't work.

ip nat pool POOL1 192.168.0.102 192.168.0.102 netmask 255.255.255.0 type rotary

ip nat pool POOL2 192.168.0.103 192.168.0.103 netmask 255.255.255.0 type rotary

ip nat pool POOL3 192.168.0.104 192.168.0.104 netmask 255.255.255.0 type rotary

ip nat pool POOL4 192.168.0.105 192.168.0.105 netmask 255.255.255.0 type rotary

ip nat inside destination list 101 pool POOL1

ip nat inside destination list 102 pool POOL2

ip nat inside destination list 103 pool POOL3

ip nat inside destination list 104 pool POOL4

access-list 101 permit udp any any range 16000 16511

access-list 102 permit udp any any range 16512 17023

access-list 103 permit udp any any range 17024 17535

access-list 104 permit udp any any range 17536 18047

I also tried route-map configuration, but result is same.

Do someone have same issue?

I will wait for kindly advice.

Regards,

Shinya

このメッセージは次により編集されています: shinya hiura

Hello everyone,

I am still trying configuration about this, but it doesn't solve so far.

Do someone have correct solution?

jowen3400 · ‎09-05-2013

I am having the same issue. But you said your wan address is a 10.? are you trying to route a 10. address? is this this set up as a VPN.

shinya hiura · ‎09-05-2013

I am trying this test in my lab.

10.0.0.1 is temporally address, I am not using actual public address.

cadet alain · ‎09-05-2013

Hi,

the rotary pools only work with TCP traffic.

Regards

Alain

Don't forget to rate helpful posts.

shinya hiura · ‎09-05-2013

Hi Alain,

Do you know how to set the udp port range up?

Regards,

Shinya

Peter Koltl · ‎09-07-2013

http://evilrouters.net/2010/05/25/port-forwarding-a-range-of-ports-on-cisco-ios/

http://www.petri.co.il/forums/showthread.php?t=18848

shinya hiura · ‎09-08-2013

Hi Peter,

I already tryed following config, but the router didn't accept second source IP and same destination IP like this.

ip nat inside source static 192.168.0.102 10.0.0.1 route-map NAT

Router could not accept this line -->ip nat inside source static 192.168.0.103 10.0.0.1 route-map NAT

access-list 101 permit udp host any range 16000 16511 any

access-list 102 permit udp host any range 16512 17023 any

route-map NAT1 permit 10
match ip add 101

ip nat inside source static 192.168.0.102 10.0.0.1 route-map NAT

route-map NAT2 permit 10
match ip add 102

ip nat inside source static 192.168.0.103 10.0.0.1 route-map NAT

I already saw below site but not solved my issue.

http://evilrouters.net/2010/05/25/port-forwarding-a-range-of-ports-on-cisco-ios/

http://www.petri.co.il/forums/showthread.php?t=18848

Thanks

Hiura

Peter Koltl · ‎09-09-2013

My test is successful:

ip nat pool PORTFWD2 192.168.0.102 192.168.0.102 netmask 255.255.255.0 type rotary

ip nat pool PORTFWD3 192.168.0.103 192.168.0.103 netmask 255.255.255.0 type rotary

access-list 102 permit udp any any range 16000 16511

access-list 102 permit tcp any any range 16000 16511

access-list 103 permit udp any any range 16512 17023

access-list 103 permit tcp any any range 16512 17023

ip nat inside destination list 102 pool PORTFWD2

ip nat inside destination list 103 pool PORTFWD3

int f0/0

ip address 10.0.0.1 255.255.255.0

no shut

ip nat outside

int F0/1

ip address 192.168.0.1 255.255.255.0

no shut

ip nat inside

R1#sh ip nat translations

Pro Inside global Inside local Outside local Outside global

tcp 10.0.0.1:16100 192.168.0.102:16100 10.0.0.2:12654 10.0.0.2:12654

tcp 10.0.0.1:16800 192.168.0.103:16800 10.0.0.2:53244 10.0.0.2:53244

shinya hiura · ‎09-09-2013

Hi Peter,

Thank you for your advice.

I already tested that.

It only works for TCP, UDP is not able to forward by such configuration.

Show IP nat translation shows tcp without udp.

I am realy in trouble.

Thanks

Hiura

Peter Koltl · ‎09-11-2013

Well, you are right.