Log onto your router and you should see in the Advance options...NAT. Enable your One-to-One NAT and input your Private IP and Public IP in the appropriate boxes and update your router. -----Original Message----- From: Sarfraz ahmed [mailto:S.ahmed@xxxxxxxxxxxxxxxxx] Sent: Wednesday, August 31, 2005 12:17 PM To: [ExchangeList] Subject: [exchangelist] RE: owa http://www.MSExchange.org/ No , I am using zoom adsl router but firewall disabled. Sarfraz Ahmed Network&Epos Engineer National Halal Food Group www.nationalhalal.com <http://www.nationalhalal.com> Tel:00441217722700 Fax:0044121772252 -----Original Message----- From: Mike Dufoe [mailto:dufoem@xxxxxxxxxxx] Sent: 31 August 2005 17:14 To: [ExchangeList] Subject: [exchangelist] RE: owa http://www.MSExchange.org/ Do you have a firewall? -----Original Message----- From: Sarfraz ahmed [mailto:S.ahmed@xxxxxxxxxxxxxxxxx] Sent: Wednesday, August 31, 2005 11:53 AM To: [ExchangeList] Subject: [exchangelist] RE: owa http://www.MSExchange.org/ Yes its internally is work fine but external not work , how can I configure NAT in server ? can you help me plz Many Thank Sarfraz Ahmed Network&Epos Engineer National Halal Food Group www.nationalhalal.com <http://www.nationalhalal.com> Tel:00441217722700 Fax:0044121772252