Facing problem with two way NATing

Unanswered Question
Feb 21st, 2007

Following is config & debug info.

My target is sftp to server 192.168.10.25 from 155.107.90.48 network. Please help. Its urgent.

interface FastEthernet0/0

ip address 10.156.67.3 255.255.255.224

Connected to CDSL network

ip accounting output-packets

ip nat inside

speed 100

full-duplex

!

interface FastEthernet0/1

ip address 155.107.90.59 255.255.255.240

Connected to DMZ

ip nat outside

speed 100

full-duplex

!

ip nat inside source static 192.168.10.25 155.107.90.56

ip nat outside source static 155.107.90.62 10.156.67.4

ip classless

ip route 10.156.0.0 255.255.0.0 10.156.67.1

ip route 155.107.90.0 255.255.255.0 155.107.90.62

ip route 192.168.10.0 255.255.255.0 10.156.67.1

show ip nat translations

Pro Inside global Inside local Outside local Outside global

--- 155.107.90.56 192.168.10.25 10.156.67.4 155.107.90.62

--- 155.107.90.56 192.168.10.25 --- ---

--- --- --- 10.156.67.4 155.107.90.62

Debug out put of IP translations:

00:02:21: NAT*: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [25711]

00:02:21: NAT*: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [25711]

00:02:26: NAT*: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [25757]

00:02:26: NAT*: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [25757]

00:02:31: NAT*: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [25764]

00:02:31: NAT*: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [25764]

00:02:36: NAT*: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [25771]

00:02:36: NAT*: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [25771]

00:02:39: NAT: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [20246]

00:02:39: NAT: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [20246]

00:02:41: NAT*: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [25779]

00:02:41: NAT*: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [25779]

00:02:42: NAT: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [20247]

00:02:42: NAT: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [20247]

00:02:46: NAT*: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [25787]

00:02:46: NAT*: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [25787]

00:02:48: NAT: s=155.107.90.62->10.156.67.4, d=155.107.90.56 [20264]

00:02:48: NAT: s=10.156.67.4, d=155.107.90.56->192.168.10.25 [20264]

I have this problem too.
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hoogen_82 Wed, 02/21/2007 - 23:54

What are you trying to do nating source based or destination based flow? Explain your traffic flow please.

Cheers

Hoogen

siddhesh.bane Thu, 02/22/2007 - 00:01

My network(DMZ) is 155.107.90.48/240 & flow is

155.107.90.48<-->10.156.67.0<-->10.156.65.17----WAN Connectivity-----10.156.65.18<-------------->192.168.10.25(Other END)

We are using two way nating because our LAN use both 10.--- network & 192.168.--- network

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