Re: SnapGear SG-560 IPsec configuration

Re: SnapGear SG-560 IPsec configuration

am 18.12.2007 17:01:09 von Mak

Van Scarlat wrote:
> Hello everybody,
>
> We have two locations connected though the Internet. At the both ends
> we have SecureComputing SG-560 firewall appliances. For the connection
> between the sites we defined an IPsec VPN tunnel.
> The problemconsists in that that we had to install an additional
> Exchange server in the remote location, and this server doesn't have
> SMTP communication with the Master server.
> I have tried to telnet the SMTP server from the inside of the remote
> LAN and it works. Trying to telnet it from the main office, it doesn't
> work. This gives me the idea of a misconfiguration of the firewall.
> Can anyone advise me how can we open the 25 port to be forwarded
> through the IPsec tunnel?
>
> Thank you very much.

i don't know this product,
but for starters:

check if the tunnel is even "up",
do both networks see each other?


if no - check logs on both sites, you will see vpn/IPsec errors
if yes -
do traceroutes, is routing correct ?
is the server configured to accept connections from that subnet in the first place ?
does it have the right default gateway ?


M