Cisco 881 replacing existing firewall - Can i keep the same IP range?

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johnshaw
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Cisco 881 replacing existing firewall - Can i keep the same IP range?

Postby johnshaw » Thu Jul 14, 2011 12:54 pm

I'm wondering if anyone has run into this yet. I have a FHC that I'm replacing a failed router at, the FHC has 2 networked printers and I was wondering if the 881 can be configured to use the previous IP address range, so I don't have to re-configure my network printers.....

has anyone else done this?

russellhltn
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Postby russellhltn » Thu Jul 14, 2011 5:19 pm

I'd think you have to go though Global Services Desk. There's some kind of pattern to the range and you need to keep in sync with the "bigger picture".
Have you searched the Wiki?
Try using a Google search by adding "site:tech.lds.org/wiki" to the search criteria.

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johnshaw
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Postby johnshaw » Fri Jul 15, 2011 7:14 am

thanks.... probably good to follow the new standard.. it's not much of a change anyway on my side, but every minute counts when the site is 1.5 hours away :)

bradhokanson
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Postby bradhokanson » Fri Jul 15, 2011 8:30 pm

JohnShaw wrote:thanks.... probably good to follow the new standard.. it's not much of a change anyway on my side, but every minute counts when the site is 1.5 hours away :)


The 881w will get a new "user" subnet assigned to it during activation which is usually a /26. An additional "user" subnet can be requested but it will not be contiguous ip address space but it can be requested to be a larger space (/25) A "facilities" vlan can also be requested if needed. It will also not be contiguous ip space and will not have a dhcp scope attached but will be statically assignable addresses.

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pete.arnett
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Postby pete.arnett » Sun Jul 17, 2011 6:20 am

As stated by "[B]bradhokanson"[/B]

you will get a new 10. network subnet, new DNS servers etc.

We have installed four (4) Cisco 881W so far, with three (3) of them being replacements for various reasons

The Cisco 881W installation took about 15 to 20 minutes

Then it took "LDS IT Support" (they were Global Services) about an hour to enlighten me that they had no access to make changes to Cisco 881W

That the network 10. address could not be changed and that I would have to update all of the networked printers, copiers, video IP camera and WebStat (A/C controller)

Also, the wireless (WiFi) access point channel used by the Cisco 881W could not be changed and that I would have to change other wireless access points (AP) channels to create a comprehensive WiFi grid in the meetinghouses
Thanks,
:cool:Your Fellow Member,
Pete Arnett
Sunny South Florida, USA


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