samba - Aug 2003 - different subnets to use one samba server/integrating samba with any antivirus

good day,

our lan consist of two private IPs:
 1. 10.xxx.xxx.xxx
 2. 172.16.0.xxx
i subnetted our lan so that i can easily deny a group
of IPs in using internet (i also have a proxy server
to cater internet browsing). For example
 subnet1 - 10.0.0.64/26
 subnet2 - 10.0.0.128/26
 subnet3 - 10.0.0.192/26
 subnet4 - 10.0.1.0/26
 .
 .

i already have a samba configured having 2 NICs which
has the following addresses:
 1. eth0 - 172.16.0.2
 2. eth0 - 10.0.0.2 

how can i configure it (samba server) to connect
computer in subnet2?

is there a way to integrate antivirus with samba? im
very particular with this because i have very bad
experience server w/o antivirus.

Thanks in advance, any suggestion is highly
appreciated!

eric

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