sql server replication: Hi all,

I'm trying to create a subscription for a merge replication on a sql
server mobile 2005 based application.
The publisher is on a intranet, listening on port 9091 and with a named
instance.
The merge agent is in a DMZ with port 9091 open for inbound/outbound TCP
traffic to the intranet.

Problem:
when I try to synchronize I receive the "SQL Server does not exists" error.
My subscription has the following setup:

Publisher = "ServerName\InstanceName";
PublisherNetwork = NetworkType.TcpIpSockets;
PublisherAddress = "10.xxx.xxx.xxx,9091";

PublisherDatabase = "DatabaseName";
PublisherSecurityMode = SecurityType.DBAuthentication;
PublisherLogin = "name";
PublisherPassword = "pwd";

name/pwd user has correct priviledges non publisher database.
I can connect via SQL Client to the database from the machine in DMZ.

In my (many) tries, I also created an alias on the DMZ client and used
that for the Publisher property at the subscriber.
Nothing worked.

Cl@ ha scritto:

[quoted text, click to view]

I solved opening 1434 udp port.
Question is: why sql client can connect without 1434 port open and the