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Firewall ADSL Modem / Router Series

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Why does PPTP function not work when firewall enabled?

PPTP uses two protocols: TCP/1723 for session control and IP protocol 47 (GRE) for data phase. If firewall enabled, please add packet-filtering rule for both TCP/1723 and protocol/47.

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Nology Pty Ltd is the exclusive distributor for Billion products in South Africa