Re: NATTING UDP packets

From: Rich Collins (nilsi2002@gmail.com)
Date: Tue Aug 05 2008 - 18:45:25 ART

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What does the show ip nat trans give?

My example:

R1#sh run | i nat
 ip nat outside
 ip nat inside
ip nat outside source static 172.16.13.2 172.16.20.1
R1#

R1#sh ip nat translations
Pro Inside global Inside local Outside local Outside global
--- --- --- 172.16.20.1 172.16.13.2
icmp 172.16.15.2:5 172.16.15.2:5 172.16.20.1:5 172.16.13.2:5
tcp 172.16.15.2:23 172.16.15.2:23 172.16.20.1:23829
172.16.13.2:23829
udp 172.16.15.2:131 172.16.15.2:131 172.16.20.1:51511
172.16.13.2:51511
udp 172.16.15.2:131 172.16.15.2:131 172.16.20.1:51995
172.16.13.2:51995
udp 172.16.15.2:131 172.16.15.2:131 172.16.20.1:52172
172.16.13.2:52172
udp 172.16.15.2:131 172.16.15.2:131 172.16.20.1:53508
172.16.13.2:53508
udp 172.16.15.2:131 172.16.15.2:131 172.16.20.1:58740
172.16.13.2:58740
R1#

-Rich

On Mon, Aug 4, 2008 at 10:40 AM, Peter Stephan <pgstephan@gmail.com> wrote:

> Yea sure:
>
> Here's the packets:
> Aug 4 13:50:52: IP: s=10.237.75.201 (FastEthernet0/0.3),
> d=10.237.75.195(FastEthernet0/0.3), len 41, rcvd 3
> Aug 4 13:50:52: UDP src=5000, dst=4100
> Aug 4 13:50:52: IP: tableid=0, s=10.237.75.201 (FastEthernet0/0.3), d=
> 10.237.75.195 (FastEthernet0/0.3), routed via RIB
> Aug 4 13:50:52: IP: s=10.237.75.201 (FastEthernet0/0.3),
> d=10.237.75.195(FastEthernet0/0.3), len 41, rcvd 3
> Aug 4 13:50:52: UDP src=5000, dst=4100
>
> Here's the nat conf:
> ip nat outside source static 10.239.98.55 10.237.75.195
>
> and couple of inside and outside on int.
> I'm trying to nat global address 10.239.98.55 to 10.237.75.195.
>
> The nat is working properly for ICMP... but the ipt traffic is not flowing
> to the comm serv.
>
> thx
>
> On Mon, Aug 4, 2008 at 5:54 PM, Sadiq Yakasai <sadiqtanko@gmail.com>
> wrote:
>
> > Can we see some configs please Peter?
> >
> > Sadiq
>
>
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• Maybe in reply to: Peter Stephan: "NATTING UDP packets"
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