User Manual

USER MANUAL

Peplink Balance Series

19.3 Service Forwarding

Service Forwarding settings are located at: Network > Service Forwarding

Service Forwarding

SMTP Forwarding

When this option is enabled, all outgoing SMTP connections destined for any

host at TCP port 25 will be intercepted. These connections will be redirected

to a specified SMTP server and port number. SMTP server settings for each

WAN can be specified after selecting Enable.

Web Proxy Forwarding

When this option is enabled, all outgoing connections destined for the proxy

server specified in Web Proxy Interception Settings will be intercepted. These

connections will be redirected to a specified web proxy server and port

number. Web Proxy Interception Settings and proxy server settings for each

WAN can be specified after selecting Enable.

DNS Forwarding

When this option is enabled, all outgoing DNS lookups will be intercepted and

redirected to the built-in DNS name server.

If any LAN device is using DNS name servers of a WAN connection, you may

want to enable this option to enhance the DNS availability without modifying

the DNS server setting of the clients. The built-in DNS name server will

distribute DNS lookups to corresponding DNS servers of all available WAN

connections. In this case, DNS service will not be interrupted even if any

WAN connection is down.

19.3.1 SMTP Forwarding

Some ISPs require their users to send e-mails via the ISP’s SMTP server. All outgoing SMTP

connections are blocked except those connecting to the ISP’s. The Peplink Balance supports to intercept

and redirect all outgoing SMTP connections (destined for TCP port 25) via a WAN connection to the

WAN’s corresponding SMTP server.