Network with manualy assigned IPs moving to DHCP

[Guest]

Hi. I have an already running network with 7 PCs and 4 printers connected
through a Catalyst 3500 series XL switch, IPs were assigned manually. This
Switch is connected to a PC working as a firewall and the firewal to a DSL
modem.
Now I want to provide wireless connection services for laptops and as well I
need to provide VPN services.
The schema I'm thinking on is:
DSL modem -> VPN router (DHCP) -> Wireless router (Access Point) -> Catalyst
Switch.
My question is: Is it necessary to change the switch config to fit the new
DHCP functionality of the VPN router, or can I leave it as it is (with the
IPs it already has) and simply disconect it from the firewall and connect it
to the VPN router, and having the VPN router assigning IPs only to the
devices that do not have an assigned IP? . My concern is because I'm affraid
my customer doesn't have the connections and software required to configure
the switch.

Thank you in advance

 

[Richard G. Harper \(MVP Shell/User\)]

Cisco switches can almost always be configured by using TELNET.EXE to
connect to the switch IP address. But it's not easy unless the switch is
very simply configured as Cisco switches have a great many features that you
might not understand easily or quickly.

I do not recommend using both fixed and dynamic IP addresses on the same
network unless they're all managed by one DHCP server that can reserve
addresses for the devices with fixed IP addresses. This is a good way to
wind up knocking systems off-line when you get IP address conflicts.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

 

[Guest]

Thank you for answering Richard.
What I understand from your message is:
If I can have a limited range of IP addresses, lets say for instance
100.200.120.50 - 100 for the manually asigned IPs and the DHCP range defined
as 100.200.120.110-200, this way then can coexist in the same router. Is this
correct?

Regards

Cisco switches can almost always be configured by using TELNET.EXE to
connect to the switch IP address. But it's not easy unless the switch is
very simply configured as Cisco switches have a great many features that you
might not understand easily or quickly.

I do not recommend using both fixed and dynamic IP addresses on the same
network unless they're all managed by one DHCP server that can reserve
addresses for the devices with fixed IP addresses. This is a good way to
wind up knocking systems off-line when you get IP address conflicts.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

Hi. I have an already running network with 7 PCs and 4 printers connected
through a Catalyst 3500 series XL switch, IPs were assigned manually. This
Switch is connected to a PC working as a firewall and the firewal to a DSL
modem.
Now I want to provide wireless connection services for laptops and as well
I
need to provide VPN services.
The schema I'm thinking on is:
DSL modem -> VPN router (DHCP) -> Wireless router (Access Point) ->
Catalyst
Switch.
My question is: Is it necessary to change the switch config to fit the new
DHCP functionality of the VPN router, or can I leave it as it is (with the
IPs it already has) and simply disconect it from the firewall and connect
it
to the VPN router, and having the VPN router assigning IPs only to the
devices that do not have an assigned IP? . My concern is because I'm
affraid
my customer doesn't have the connections and software required to
configure
the switch.

Thank you in advance

 

[Richard G. Harper \(MVP Shell/User\)]

As long as they don't overlap that should be fine.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

Thank you for answering Richard.
What I understand from your message is:
If I can have a limited range of IP addresses, lets say for instance
100.200.120.50 - 100 for the manually asigned IPs and the DHCP range
defined
as 100.200.120.110-200, this way then can coexist in the same router. Is
this
correct?

Regards

Cisco switches can almost always be configured by using TELNET.EXE to
connect to the switch IP address. But it's not easy unless the switch is
very simply configured as Cisco switches have a great many features that
you
might not understand easily or quickly.

I do not recommend using both fixed and dynamic IP addresses on the same
network unless they're all managed by one DHCP server that can reserve
addresses for the devices with fixed IP addresses. This is a good way to
wind up knocking systems off-line when you get IP address conflicts.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

Hi. I have an already running network with 7 PCs and 4 printers
connected
through a Catalyst 3500 series XL switch, IPs were assigned manually.
This
Switch is connected to a PC working as a firewall and the firewal to a
DSL
modem.
Now I want to provide wireless connection services for laptops and as
well
I
need to provide VPN services.
The schema I'm thinking on is:
DSL modem -> VPN router (DHCP) -> Wireless router (Access Point) ->
Catalyst
Switch.
My question is: Is it necessary to change the switch config to fit the
new
DHCP functionality of the VPN router, or can I leave it as it is (with
the
IPs it already has) and simply disconect it from the firewall and
connect
it
to the VPN router, and having the VPN router assigning IPs only to the
devices that do not have an assigned IP? . My concern is because I'm
affraid
my customer doesn't have the connections and software required to
configure
the switch.

Thank you in advance

 

[Guest]

Okay Richard. Thank you.

I really appreciate your help.

Regards

As long as they don't overlap that should be fine.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

Thank you for answering Richard.
What I understand from your message is:
If I can have a limited range of IP addresses, lets say for instance
100.200.120.50 - 100 for the manually asigned IPs and the DHCP range
defined
as 100.200.120.110-200, this way then can coexist in the same router. Is
this
correct?

Regards

Cisco switches can almost always be configured by using TELNET.EXE to
connect to the switch IP address. But it's not easy unless the switch is
very simply configured as Cisco switches have a great many features that
you
might not understand easily or quickly.

I do not recommend using both fixed and dynamic IP addresses on the same
network unless they're all managed by one DHCP server that can reserve
addresses for the devices with fixed IP addresses. This is a good way to
wind up knocking systems off-line when you get IP address conflicts.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


Hi. I have an already running network with 7 PCs and 4 printers
connected
through a Catalyst 3500 series XL switch, IPs were assigned manually.
This
Switch is connected to a PC working as a firewall and the firewal to a
DSL
modem.
Now I want to provide wireless connection services for laptops and as
well
I
need to provide VPN services.
The schema I'm thinking on is:
DSL modem -> VPN router (DHCP) -> Wireless router (Access Point) ->
Catalyst
Switch.
My question is: Is it necessary to change the switch config to fit the
new
DHCP functionality of the VPN router, or can I leave it as it is (with
the
IPs it already has) and simply disconect it from the firewall and
connect
it
to the VPN router, and having the VPN router assigning IPs only to the
devices that do not have an assigned IP? . My concern is because I'm
affraid
my customer doesn't have the connections and software required to
configure
the switch.

Thank you in advance

 

[Richard G. Harper \(MVP Shell/User\)]

Glad I was able to help out.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

Okay Richard. Thank you.

I really appreciate your help.

Regards

As long as they don't overlap that should be fine.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm

Thank you for answering Richard.
What I understand from your message is:
If I can have a limited range of IP addresses, lets say for instance
100.200.120.50 - 100 for the manually asigned IPs and the DHCP range
defined
as 100.200.120.110-200, this way then can coexist in the same router.
Is
this
correct?

Regards

:

Cisco switches can almost always be configured by using TELNET.EXE to
connect to the switch IP address. But it's not easy unless the switch
is
very simply configured as Cisco switches have a great many features
that
you
might not understand easily or quickly.

I do not recommend using both fixed and dynamic IP addresses on the
same
network unless they're all managed by one DHCP server that can reserve
addresses for the devices with fixed IP addresses. This is a good way
to
wind up knocking systems off-line when you get IP address conflicts.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


Hi. I have an already running network with 7 PCs and 4 printers
connected
through a Catalyst 3500 series XL switch, IPs were assigned
manually.
This
Switch is connected to a PC working as a firewall and the firewal to
a
DSL
modem.
Now I want to provide wireless connection services for laptops and
as
well
I
need to provide VPN services.
The schema I'm thinking on is:
DSL modem -> VPN router (DHCP) -> Wireless router (Access Point) ->
Catalyst
Switch.
My question is: Is it necessary to change the switch config to fit
the
new
DHCP functionality of the VPN router, or can I leave it as it is
(with
the
IPs it already has) and simply disconect it from the firewall and
connect
it
to the VPN router, and having the VPN router assigning IPs only to
the
devices that do not have an assigned IP? . My concern is because I'm
affraid
my customer doesn't have the connections and software required to
configure
the switch.

Thank you in advance