From: Rich Collins (nilsi2002@gmail.com)
Date: Wed Aug 06 2008 - 10:42:01 ART
Hi Peter,
I can just suggest general debugging techniques (debug ip nat ..., try a
telnet using that ip address as a source to see if you get a tcp
translation, try (ip sla monitor 1 ... with a udpEcho type to send udp
packets through the translation).
Rgds,
Rich
On Wed, Aug 6, 2008 at 2:11 AM, Peter Stephan <engpeter@gmail.com> wrote:
> Hi Rick,
>
> sho ip nat trans shows the ICMP translations when I ping from the switch's
> SVI int to the comm server.
> But when any of the IPT tries to communicate with the server, nothing
> appears in the NAT translations, which means that the packets are not
> translated at all...
>
> ------------------------------
> *From:* Rich Collins [mailto:nilsi2002@gmail.com]
> *Sent:* Wednesday, August 06, 2008 01:45
> *To:* Peter Stephan
> *Cc:* Sadiq Yakasai; ccielab@groupstudy.com
> *Subject:* Re: NATTING UDP packets
>
> 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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>>
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