03-20-2010
Adding subnet on windows network
Hi All,
I have a windows network that I need to improve network speed. Unfortunately, it's running on one subnetwork. So I would like to put multi subnet on it. I don't want to put cisco routing and switching yet. I'm new to it and I would like to put linksys router and unmanaged switch for now so that it will be easier for me to troubleshoot.
I'm planning to put the 30 user computer first on another subnet (internal subnet). Is this a good plan? Or should I put the server on the internal subnet (the current) and create an external new subnet?
So I added one linksys router for now and 1G 48 port unmanage switch. On the router, I put a static IP 10.1.1.30 from the current subnet (10.1.1.0/24) and configure the router subnet (10.1.2.0/24).
I can ping from the new subnet 10.1.2.0 all the ip of the server but not the dns name, nothing resolve to it. And of course, from the external subnet, I cannot ping any user computer.
What do I need to make dns working so that the two subnet will be working fine with active directory, exchange and ERP application? And also on DHCP, I want another Windows DHCP and not the router DHCP. What should I do?
Please help and more power.
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LEARN ABOUT CENTOS
ipsec_masktobits
IPSEC_GOODMASK(3) Library Functions Manual IPSEC_GOODMASK(3)
NAME
ipsec_goodmask, ipsec_masktobits, ipsec_bitstomask - check if Internet subnet mask is valid, convert Internet subnet mask to bit count,
convert bit count to Internet subnet mask
SYNOPSIS
#include <libreswan.h>
int goodmask(struct in_addr mask);
int masktobits(struct in_addr mask);
struct in_addr bitstomask(int n);
DESCRIPTION
These functions are obsolete; see ipsec_masktocount(3) for a partial replacement.
Goodmask reports whether the subnet mask is a valid one, i.e. consists of a (possibly empty) sequence of 1s followed by a (possibly empty)
sequence of 0s. Masktobits takes a (valid) subnet mask and returns the number of 1 bits in it. Bitstomask reverses this, returning the
subnet mask corresponding to bit count n.
All masks are in network byte order.
SEE ALSO
inet(3), ipsec_atosubnet(3)
DIAGNOSTICS
Masktobits returns -1 for an invalid mask. Bitstomask returns an all-zeros mask for a negative or out-of-range n.
HISTORY
Written for the FreeS/WAN project by Henry Spencer.
BUGS
The error-reporting convention of bitstomask is less than ideal; zero is sometimes a legitimate mask.
11 June 2001 IPSEC_GOODMASK(3)