05-03-2007 09:31 AM - edited 03-05-2019 03:50 PM
I am installing a LAN with private IP address's. We will call this LAN 1
It has a router that is connected to
another LAN we will call LAN 2
I need to send email from a single
machine on LAN 1 to a server on
LAN 2. The IP address's on lAN 1 are all nailed. The address's on LAN 2
are all DHCP assigned, but have
a domain server.
LAN 2 is connected to the Internet as most are, via a Router.
How can I send email from LAN 1 to the
server on LAN 2, so people on LAN 2
will recieve the email.
Thanks
05-03-2007 11:03 AM
Hi,
If i understand you right both LAN1 and LAN2 are connected to the router, if this is right then all that you need is to make the default gateway of PCs on LAN1 the ip address of the ethernet interface of the router connected to LAN1 and vice versa for LAN2.
HTH, please rate if it does help,
Mohammed Mahmoud.
05-03-2007 11:52 AM
LAN 1 is connected to a LAN Port
LAN 2 is connected to the WAN Port
The Router is getting a DHCP address
for the WAN side from a DHCP server
on the LAN 2 network.
How would I know what
the default gateway IP would be.
Also the only thing I can change is
settings on the Router Connected to LAN 1.
I cannot change anything thats on LAN 2
05-03-2007 12:02 PM
Hi,
Since both LANs are connected to the same router, then nothing is to be done on the router, the router routes automatically between its directly connected interfaces, the only thing to be done is to configure the default gateway on the PCs on both sides to use the router as their default gateway.
The second option is to enable proxy ARP on the router interfaces.
HTH, please rate if it does help,
Mohammed Mahmoud.
05-03-2007 12:32 PM
Thats the problem, I can not change anything
on the PC's on LAN 2.
The gateway on LAN2's router to the internet
can not be changed, nor the PC's that use that router.
05-03-2007 12:42 PM
Hi,
Can you add a static route on the internet router pointing back to LAN1 IPs making the next-hop the router connecting the 2 LANs.
HTH, please rate if it does help,
Mohammed Mahmoud.
05-03-2007 01:45 PM
You mean add on static IP on LAN1
that is normaly dynamic IP's
Yes I think I could get them to give me one
Static IP for the WAN side of the router
and the LAN side is already all Static
05-03-2007 02:04 PM
Hi,
All that we need is a route on the internet router of LAN2 that points back to LAN1 through the first router, so you'll need to add a static route on the internet router pointing back to LAN1 IPs making the next-hop the router connecting the 2 LANs (the first router).
HTH, please rate if it does help,
Mohammed Mahmoud.
05-03-2007 12:44 PM
There must be another router involved on LAN2? You need to add a route on LAN2 to LAN1 subnet via WAN port you mentioned above.
edit: sorry, mohammedmahmoud simultaneous post
05-03-2007 12:59 PM
Adam, no problem at all, we are all trying to help.
BR,
Mohammed Mahmoud.
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