We will have remote users connecting via frame relay to a peering point outside our
firewall. They want to authenticate onto our domain to use network resources and MS
Exchange mail. From the start, Netbios would have to be allowed through the firewall.
Is this an issue since this is frame-relay and not the Internet? The rules through
the firewall would allow inbound Netbios only from the IP of the users. Does Exchange
client communicate via a different port that also needs to be opened? Printing? Would
the destination IP address have to be the network resources needed, e.g. printers,
WINS servers, a BDC? The best answer would be to connect them internally, but for some
reason, they are not going to, at least until we determine that through the firewall
is not doable. Resources/comments concerning the ports required (TCP/UDP 135,137-9,
and any others)and the security issues around them is appreciated.
RN
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