Last update 5/02/2019

1. Introduction

Our service may not function properly if firewalls prevent some of our own and/or merchant components from communicating. 
All necessary information are provided in this document to help configure the merchant's firewalls and minimise communication errors between the merchant's network infrastructure and our payment gateways.
This document assumes that the merchant is familiar with the procedures for configuring firewalls, routers or any other devices used to block traffic on the merchant’s network. The merchant should refer to his firewall configuration guide for instructions about creating and configuring firewall rules.

*Call Charges: The following is a guide to call charge information from Business landlines within the UK.

Barclaycard is a trading name of Barclays Bank PLC. Barclays Bank PLC is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority (Financial Services Register number: 122702). Registered in England. Registered No. 1026167. Registered office: 1 Churchill Place, London E14 5HP

Barclays Bank PLC subscribes to the Lending Code which is monitored and enforced by the Lending Standards Board. Further details can be found at escape arrow

© Barclaycard 2016