10-24-2008 05:56 AM - edited 03-04-2019 12:03 AM
HI
I'm wondering for the following behaviour.
My router Cisco 1841 IOS 12.4(21) has the following config:
interface FastEthernet0/0
ip address 10.59.254.60 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0/0
bandwidth 2048
no ip address
encapsulation frame-relay IETF
no ip mroute-cache
load-interval 30
no fair-queue
frame-relay lmi-type ansi
!
interface Serial0/0/0.70 point-to-point
ip address 192.168.152.46 255.255.255.252
ip nat outside
frame-relay interface-dlci 70
!
ip nat outside source static 192.168.152.7 10.191.152.7
As you can see there's not the âip nat insideâ statement.
If I do the command:
#telnet 10.191.152.7 80 /source-interface fastEthernet 0/0
Trying 10.191.152.7, 80 ... Open
*Oct 24 15:55:31: NAT: s=10.59.254.60, d=10.191.152.7->192.168.152.7 [47828]
*Oct 24 15:55:31: NAT*: s=192.168.152.7->10.191.152.7, d=10.59.254.60 [9352]
#sh ip route
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.59.254.0/24 is directly connected, FastEthernet0/0
S* 0.0.0.0/0 is directly connected, Serial0/0/0.70
I'm wondering why the translation happens!!!
Can anybody clearify ?
Tks
Ric
10-24-2008 06:20 AM
Once you have specified the nat outside interface it is sufficient for NAT to start working. You omit outside definition and it would stop working.
Thanks.
10-28-2008 01:34 AM
Do you have an url explaining that ???
11-06-2008 04:55 AM
I think it would be better to use the nat outside interface "192.168.152.46 " as the static nat instead.
HTH
Dak
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