In short i have five VLAN in one OF THE Vlan ISA server... 192.168.110.x
My ISA Server IP 192.168.110.5 (Internet was working only in this vlan) my ISA was dual NIC (Interface)
route i added was
route ADD -P 192.168.111.0 MASK 255.255.255.0 192.168.110.5
route ADD -P 192.168.112.0 MASK 255.255.255.0 192.168.110.5
I cannot access the internet.
when firewal is disabled, internet is working fine for all users in all vlans.
when firewall is enabled, only users in the same vlan as the isa server can connect.
routes to the vlans have been added with the ip address of the vlans as the gateways.
still cannot connect.
Requesting for a solution!!!!
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Hold on here.......
The static routes are round the wrong way. At a cmd prompt on ISA server you need to add static routes that tell ISA how to return traffic back to the individual vlans. So, if ISA is 110.5 then that will NOT be the gateway to use, there will be another 110.x address that ISA should be sending traffic back to such as a router for redistribution.
ISA picks up what it is allowed to operate with by adding the internal ip addresses as explained above.
Specifically,
Open the ISA gui - select configuration - networks - internal - properties.
Add the vlans as follows
192.168.111.0 - 192.168.111.255
192.168.112
and so on
Apply the changes
open the ISA gui again,
select monitoring - logging - click start query
Try a connection from a work station on on of these other vlans.
What do you see in the realtime log? If you now see the traffic passing through correctly then you have done it right.
If it is being blocked by the default rule.... then you haven't.
Keith
ISA MVP
Business Accounts
Answer for Membership
by: Hisham_ElkouhaPosted on 2009-08-18 at 03:55:28ID: 25121761
Go to ISA Console
Inder Configuration > Network > Networks
Add all vlan IPs in there