Multiple external IPs, binding on outbound

Hi all

My ISA server has a hoard of external IPs. Amoungst them are 4 for mail
servers and 2 for Radius servers. Inbound works ok, but outbound always
binds to the primary external IP. There have been suggestions to change the
primary IP to the IP of the mail server, but in our case we have multiple
servers so this is not possible.

For mail it is not too much of a problem, except for those mail servers
using reverse lookups to identify spam.

For Radius it is a problem. Our upstream provider will only accept Radius
Packets of Disconnect (PoD) from our Radius server IPs it knows. As ISA is
using the primary external IP all our PoDs are being rejected.

Is there any way of binding outbound traffic to a specific external IP?

If not, please consider this 'feature' of ISA useless and in the next
service pack please provide a way to publish outbound traffic simillar to
inbound so that we can bind our services to the correct external IPs.

Thanks

Tim Parker-Nance


.

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