1. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  2. Using Weblink
  3. Additional Firewall Configuration
  • ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
Additional Firewall Configuration

Additional Firewall Configuration

Some firewalls do not allow the first connection attempt for a device to be HTTPS or require new connections periodically to keep the initial connections intact. The weblink test branch was provided to address issues that typically arise because the printer is an unattended device.
To configure the printer to attempt an
HTTP
 connection anytime the
HTTPS
 connection drops :
! U1 setvar "weblink.ip.conn1.test.location" "http://www.zebra.com/apps/linktest"
! U1 setvar "weblink.ip.conn1.test.test_on" "failure"
The weblink.ip.conn1.test.location can be any valid HTTP address. The default uses a link provided by Zebra that exists for no other purpose than to help developers test their connections to the internet. Setting
weblink.ip.conn1.test.test_on
 to interval or both will force the printer to attempt a connection to the URL in location every
weblink.ip.conn1.test.retry_interval
 seconds (default is 900 seconds/15 minutes).
To configure the printer to try an HTTP connection periodically, independent of the HTTPS success:
! U1 setvar "weblink.ip.conn1.test.location" "http://www.zebra.com/apps/linktest"
! U1 setvar "weblink.ip.conn1.test.test_on" "interval"
! U1 setvar "weblink.ip.conn1.test.retry_interval" "900"