ISA 2004, VPN and DHCP problem

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From: Tomek Bryja (look_at_my.signature)
Date: 09/03/04 

Date: Fri, 03 Sep 2004 17:38:42 +0200

I'm having problems with ISA 2004 (RTM) that is supposed to
be a gateway for VPN clients.

Everything is OK until I try to assign IPs via DHCP server
that is running on the same box as ISA. When I deactivate the
static pool of IPs at ISA/RAS and instead turn on the 'use
DHCP server to assign IPs to VPN clients' option, it simply
does not work -- the RAS internal interface after beeing set to
0.0.0.0 for a minute or so, gets the default 192.168.x.x
because it cannot obtain the proper address from DHCP server
(the same goes for vpn clients).

I have a rule that allows DHCP traffic (request/reply) from/to
internal network and localhost (which runs both ISA and DHCP srv).

What do I have to do more to allow RAS to get IPs from DHCP
when both RAS/DHCP/ISA run on the same box?

PS. I tried setting up a DHCP relay agent to listen on requests
on RAS internal interface and forward it to DHCP server -- no effect... 

-- 
Tomek Bryja (tomek[AT]mvp.pl)

Relevant Pages

  • ISA 2004, VPN and DHCP problem
    ... I'm having problems with ISA 2004 that is supposed to ... Everything is OK until I try to assign IPs via DHCP server ... DHCP server to assign IPs to VPN clients' option, ...
    (microsoft.public.isa.vpn)
  • Re: DHCP problem in ISA 2004
    ... In case the DHCP server is on ISA computer you must create rules for DHCP ... a list of IP addresses to issue to VPN clients. ...
    (microsoft.public.isaserver)
  • Re: DHCP problem in ISA 2004
    ... In case the DHCP server is on ISA computer you must create rules for DHCP ... a list of IP addresses to issue to VPN clients. ...
    (microsoft.public.isa)
  • Re: DHCP problem in ISA 2004
    ... In case the DHCP server is on ISA computer you must create rules for DHCP ... a list of IP addresses to issue to VPN clients. ...
    (microsoft.public.isa.configuration)
  • Re: ISA 2004, VPN and DHCP problem
    ... System Event log says: ... Unable to contact a DHCP server. ... >> DHCP server to assign IPs to VPN clients' option, ...
    (microsoft.public.isa.vpn)