From: Leo Lin (linyileo@gmail.com)
Date: Fri Apr 20 2007 - 03:53:30 ART
Hi Paul,
When you enable Nat, and package arrive on inbound interface and need send
outbound. The process first check route table, if the destination of package
can route, then check Nat table, transform and transmit it.
When package arrive on outbound interface and need send inbound, the process
first check Nat table, if have entry, transform it first, and then check
route table, and route the transformed destination address.
So your suppose work.
Best regards,
Leo
-----SJ<~T-<~-----
7"<~HK: nobody@groupstudy.com [mailto:nobody@groupstudy.com] 4z1m Paul Casey
7"KMJ1<d: 2007Dj4TB19HU 23:05
JU<~HK: Cisco certification; ccielab@groupstudy.com
VwLb: Nat issue.
Hi I am trying to do the following.
1. Sent traffic through a router,from an etherenet interface to a serial
interface (natting on the serial interface on the way out) NAT the source
address to a virtual ip address that is actually not attached to the router,
& from there the router sends the traffic on its ways to its destination
which is a routable address.
When the return traffic comes back to this router (other router in the
network have static routes pointing back to this router to get to the
virtual address) I want the router to NAT the virtual destination address
(on the way through the router on the outside serial interface back to the
orginal source ) which is on the ethernet side. This is the same serial
interface which natted the source traffic on the way out.
Its not the natting on the way out I am concerned about. It the natting on
the serial interface on the way back in. I am concerned the router will drop
the packet as it doesnt have the destination address in its routing table
until after it nats the destination address.
Can this be done ?
Any help appreciated.
Thanks
Paul
This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:36 ART