Rolland, Your ISA internal address and the internal client addresses should not have public addresses. (Such as something in the 10.0.0.0/8, 172.16.0.0/26 thru 172.31.0.0/16, or 192.168.0.0/24 thru 192.168.255.0/24 ranges. It is not manadatory that you use one of these ranges but they non routable internet addresses and will result in fewer problems.) Ensure that the internal address range you choose is in the LAT (and external addresses are not). Kevin -----Original Message----- From: Rolland Basi [mailto:basi948@xxxxxxxxxxx] Sent: Friday, January 02, 2004 4:20 PM To: [ISAserver.org Discussion List] Subject: [isalist] ISA is still not working http://www.ISAserver.org Hello ISA Profs; Happy New year to you all. I am still having problem with my ISA Server. ie with pinging from SecureNAT clients. Here are my configurations: ISP IP Address: 202.1.59.8 mask: 255.255.255.248 Gateway: 202.1.59.10 Router Ip Add: 199.245.180.18 ISA Ext. NIC: 199.245.180.29 Sub. Mask: 255.255.255.0 DGateway: 199.245.180.18 ISA Int. NIC: 199.245.180.28 Sub.Mask: 255.255.255.0 DGateway: none SecureNAT Clients with Static IP Addresses: eg. IP Add: 199.245.180.19 Mask: 255.255.255.0 Gateway: 199.245.180.28 DNS: 199.245.180.28 The ISA Server's Ext NIC is plugged into the Router's Ethernet port. The Router is then connected to the ISA via a Leased Line. Can someone figure out where my problem is. I mean what's blocking my SNAT clients from pinging the ISP Server. I've enable IP filtering and ICMP outbound but still doesn't work. As I mentioned in my previous emails, Web browsing is fine. Please, this has taken me almost a month to get this working, I really need your help. Thanks alot. Rolland _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: kevin@xxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')