Back in November 2000 I read with interest a thread discussing the implications of Service Providers blocking particular protocols (I believe it was "Operational impact of blocking SMB/Netbios"). I recall one response which explicitly stated that IPsec was not blocked. Is anyone on the list aware of Service Providers (ISP/NSP...) who DO block IPsec traffic, with or without informing their customers or peers? I'm trying to assess the pros and cons of major Enterprise Customers basing their entire remote office/small office/mobile network access strategy on some type of IPsec based VPN solution. Any thoughts? Cheers Dave ------- Dave Wardle, Principal Consultant Critical Networks, Inc. ------- Email: dave@criticalnets.com Homepage: www.criticalnets.com ------- Cell: 831 332 1021 Tel: 831 662 1710 Fax: 831 662 1710 -------