ISA server 2004 problem

boy_to_man · 11-13-2006, 08:46 PM

Hi everyone

I not sure that i post this thread in this box is true or false.
Pls help me resolve this problem. Here is prob

I don’t know why. Our network structure is going through ISA to connect to internet.
ISA server has 2 NIC, 1 modem,
1 NIC has address pools is 10.0.0.x connect to modem (modem address is 10.0.0.2)
1 NIC has address pools is 192.168.1.x connect to LAN
I have publish my mail server on ISA
But from modem to ISA, I cannot ping to 10.0.0.4 (ISA add).
From modem I have config NAT to allow all information from internet to internal (is 10.0.0.4)

Have anyone can help me resolve this pro.
Thanks for any helps

**Cellus** · 11-17-2006, 04:07 PM

What does the event log say during the time this failure occurred?

Other than being unable to ping, have any hosts been affected by this as well?

boy_to_man · 11-22-2006, 02:41 AM

Thanks 4 reply
But now i have a new prob. Ihave change IP of NIC external of ISA server

Now i can ping from internal (is 192.168.1.x) to external( is 10.0.0.x) but vice-versa is can't.
I'm not sure about this prob. But here is prob which make me cannot connect to my website from internet.
i have intend to apply ISA to my network system. BUt now i cannot apply unless sure of it can run in normal.

PS: My modem is ZyZel Prestige 660R-61C.

Thanks 4 any help

mercury2008 · 03-28-2008, 05:20 PM

I have same type of problem. ISA 2004 is installed and has two network cards, one for LAN and one connect to the modem. Everything was working fine. But today suddenly we lost internet connection. When I am trying to ping the modem from the ISA server it is successfully connected, but I can not get the internet connection. when another computer connects directly to the modem has internet connection. Could you help me so solve this problem

11-13-2006, 08:46 PM	#1 (permalink)
boy_to_man Registered User Join Date: Jun 2006 Posts: 36 OS: win2000	ISA server 2004 problem Hi everyone I not sure that i post this thread in this box is true or false. Pls help me resolve this problem. Here is prob I don’t know why. Our network structure is going through ISA to connect to internet. ISA server has 2 NIC, 1 modem, 1 NIC has address pools is 10.0.0.x connect to modem (modem address is 10.0.0.2) 1 NIC has address pools is 192.168.1.x connect to LAN I have publish my mail server on ISA But from modem to ISA, I cannot ping to 10.0.0.4 (ISA add). From modem I have config NAT to allow all information from internet to internal (is 10.0.0.4) Have anyone can help me resolve this pro. Thanks for any helps __________________ My E is not good so I'm trying to improve it Who can help me do it.

11-17-2006, 04:07 PM	#2 (permalink)
Cellus Moderator Networking Team Join Date: Aug 2006 Location: Canada Posts: 2,633 OS: Windows Vista Business SP1, Windows XP Professional SP3 My System	What does the event log say during the time this failure occurred? Other than being unable to ping, have any hosts been affected by this as well? __________________ TSF Networking Team HijackThis 5 Step Process Donate!

11-22-2006, 02:41 AM	#3 (permalink)
boy_to_man Registered User Join Date: Jun 2006 Posts: 36 OS: win2000	Thanks 4 reply But now i have a new prob. Ihave change IP of NIC external of ISA server Now i can ping from internal (is 192.168.1.x) to external( is 10.0.0.x) but vice-versa is can't. I'm not sure about this prob. But here is prob which make me cannot connect to my website from internet. i have intend to apply ISA to my network system. BUt now i cannot apply unless sure of it can run in normal. PS: My modem is ZyZel Prestige 660R-61C. Thanks 4 any help __________________ My E is not good so I'm trying to improve it Who can help me do it. Last edited by boy_to_man : 11-22-2006 at 02:45 AM.

03-28-2008, 05:20 PM	#4 (permalink)
mercury2008 Registered User Join Date: Mar 2008 Posts: 1 OS: server 2003, xp	Re: ISA server 2004 problem I have same type of problem. ISA 2004 is installed and has two network cards, one for LAN and one connect to the modem. Everything was working fine. But today suddenly we lost internet connection. When I am trying to ping the modem from the ISA server it is successfully connected, but I can not get the internet connection. when another computer connects directly to the modem has internet connection. Could you help me so solve this problem