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external adapter as a DHCP client - what packet filter to allow

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external adapter as a DHCP client - what packet filter ... - 28.Apr.2002 12:27:00 PM   
Ian@bbits.co.uk

 

Posts: 6
Joined: 1.Mar.2002
Status: offline
Hi I am testing a Satellite connection, that requires that my external adapter has a 2 hour lease from a DHCP server at the Sat Hub. This is failing, but I don't see anything in the Packet Filter logs.

What do I need to do to allow this to work?

Kind regards,

Ian
Post #: 1
RE: external adapter as a DHCP client - what packet fil... - 29.Apr.2002 12:05:00 AM   
ZeusNT

 

Posts: 1
Joined: 28.Apr.2002
Status: offline
I have similar problem with ISA Server in case external NIC is DCHP-client.My ISP requires that my external NIC has a 7 hour lease from a DHCP server. But with ISA Server started external NIC cannot obtain ip addres from DHCP Server.
I have checked ISA logfiles and find next records:

#Fields: date time source-ip destination-ip protocol param#1 param#2 tcp-flags filter-rule interface ip-header payload
2002-04-28 00:00:02 111.111.111.1 255.255.255.255 Udp 67 68 - BLOCKED 111.111.111.32
2002-04-28 00:00:06 111.111.111.1 255.255.255.255 Udp 67 68 - BLOCKED 111.111.111.32

But "DHCP Client" filter is enabled with next settings:
IP Protocol - UDP
Direction - Both
Local Port - Fixed Port
Local Port Number - 68
Remote Port - Fixed Port
Remote Port Number - 67

Is it possible solve my problem ?

(in reply to Ian@bbits.co.uk)
Post #: 2
RE: external adapter as a DHCP client - what packet fil... - 29.Apr.2002 4:40:00 AM   
Kirill

 

Posts: 205
Joined: 26.Sep.2001
Status: offline
Guys,
Please read this article in the learning zone: http://www.isaserver.org/pages/tutorials/cable_modem_setup.htm

(in reply to Ian@bbits.co.uk)
Post #: 3

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