Branch Office CME design Verification

Hi All,
Please refer to the attached network diagram.
I need to verify this can be implemented and would work.
We have a branch office moving to a new location and they intend to keep their existing CME (for business reasons), provided by their local service provider with ISDN line for calls to the PSTN. This is managed by the service provider and we have no access to it. However we would like to grant them connectivity to the existing corporate voice network via an IP VPN connection, which shall be put in place soon. This will enable the branch make site to site calls within the corporate network
With a SIP trunk between the internal and external CME, I intend to make all the phones register with the Call Manager, however on the call manager , set a route pattern for calls going out to the PSTN from this branch back to the internal CME and this will then be matched by a SIP dial peer directing the call to the external CME out to the PSTN.
My worry is with the delay that might be introduced when making a PSTN call as the internal CME has to first contact the call manager in order to know where to send the call.
So my questions are as follows,
1. Is this solution feasible especially in terms of delay? If not,
2. Are there any other ways to achieve the same scenario
Thanks,
Yomi

Are the phones at the branch office going to register to the Internal CME? If so, all configuration for outbound dialing will be done on the Internal CME, not on UCM. ie. dial-peer on the Internal CME for outbound dialing. For phone connectivity back to UCM, you will have a SIP trunk between UCM and internal CME and that is perfectly acceptable. You "might" see some quality degradation but that is to be expected from Internet based WAN connectivity. If your RTT delay is greater than 150ms, then you might see some quality issues.

Similar Messages

Recommended Design for WAAS in both Data center and Branch Offices

Hi All,
I need to purchase different appliances for WAAS, but before I decide what to purchase, I need to know exactly how I am going to put these devices so that I can know which one to purchase and how the designs will be.
My environment is as follows:
I have two core routers (ASR 1000 series) at Data center, two 6509 switches (expecting to insert the ACE module, and FW module) and the I have access switches which connects servers.
At the branch offices, I am expecting to place ASR1000 series also.
Now, I need to know the recommended designs for these WAAS appliances so that, I can know in advance what to purchase(i.e. how many WAAS CM, Core WAE, and Edge WAE).
Any input will highly be appreciated.
Thanks,

If you purchase the Standard Edition, your license supports:
One installation of Cisco Security Manager on one Windows-based server.
The configuration or management of 5 devices (in the Standard-5 option) or 25 devices (in the Standard-25 option). This excludes Catalyst 6500 and 7600 Series devices and their associated service modules.
If you purchase either the Standard-5 or Standard-25 license, you cannot purchase an incremental device license. Your license is fixed at either 5 or 25 devices.

Branch office dial backup design

I'm having more trouble with this than I think I should.
I have 10 small branch offices connected to the home office via frame-relay -- it's purely hub-and-spoke, with no PVC's between branch offices, everything goes to the central office. I'm trying to set up a POTS dial scenario to replicate this. Each branch has a 26xx with a two-port serial card, two analog modems and two POTS lines. The central office has an ISDN PRI terminating in a 3725 with MICA modems.
I can get a branch router to dial on one or both lines (multilink ppp), and the 3725 receives the call. CHAP negotiation works. Where I'm having trouble is in the IP routing. I've tried countless combinations of numbered and unnumbered interfaces, dialer-based ip pool on the 3725, EIGRP and/or floating static routes, etc., etc. Nevertheless, I can't get correct ip routes established, and I feel like I'm banging my head against the wall now. None of the edsign docs I can find on the Web site directly address my scenario in a way I can understand. Any suggestions?

This is my config for our 3640.
interface Group-Async1
ip unnumbered Serial1/0:23
encapsulation ppp
no ip mroute-cache
dialer in-band
dialer idle-timeout 1200
dialer map ip 170.1.1.16 name bri01rt01ec
dialer-group 1
async mode interactive
peer default ip address pool default
ppp authentication pap chap ca
ip route 192.168.16.0 255.255.255.0 172.17.1.6-----our PIX
ip route 192.168.16.0 255.255.255.0 170.1.1.16 200---Ip address of modem that dials in from 1750.
This config looks fine to me..what does everyone think?

OSPF design for branch offices across MPLS

Hello fellow networking engineers,
I want to implement OSPF in our network. We have multiple branch offices, all linked to an MPLS backbone.
I know that in order to get linked areas, I would need to setup GRE tunnels between them, but I want to avoid static/manual configurations as much as possible. With multiple sites, it would become cumbersome to create a mesh real fast.
Is running OSPF independent areas at each site, and simply redistributing over eBGP a valid solution? This will host voice and data, and will failover to VPN connection (Cisco ASAs) if the MPLS goes down.
For the VPN backup links, I thought of two options. Either simply using the default route to send everything to the ASA in case of MPLS "death", or inject routes using IP SLA...
Any input would be appreciated.

Marc
You don't GRE tunnels to link your areas if that is what you want to do.
If the SP supports it then you can exchange your OSPF routes between areas and they will still be seen as inter area routes rather than OSPF externals which they would if you simply treated each area as isolated from each other.
In effect the MPLS network becomes an OSPF super backbone area and your main site would also be part of the backbone area with all your other sites having an area each.
You still redistribute your OSPF routes into BGP but with some extra configuration on both your CEs and the SP PE devices.
Like I say you would need to check with your SP but it is possible.
Whether or not you need or want it I don't know.
Your other option is as you have proposed to treat each OSPF area as an isolated one and simply redistribute into OSPF at each CE. Then within each site all non local routes would be seen as OSPF external routes.
Either way in terms of backup I would keep it simple and use a default route at each site pointing to the ASA device. I can't see what you gain from IP SLA because if the main MPLS link goes down at any site the only other path they have out is via the ASA so there is nothing really worth tracking.
The only other thing I would mention is remote site to remote site traffic. If there is any then presumably with your VPN tunnels you would be doing a sort of hub and spoke where the hub is the main site so you may need to think about traffic coming in from one VPN tunnel and going out to another VPN tunnel on the main site ASA.
This would only really be needed if two or more sites had to use their backup links at the same time.
In terms of which is better ie. OSPF inter area across the MPLS cloud or OSPF externals I can't really say to be honest. With the MPLS networks i have worked on we ran EIGRP and simply treated each remote site as an isolated AS.
If you are already running OSPF then you may want to preserve your existing areas so it would make sense to go with the inter area option.
If it is a new setup then I don't really know the pros and cons of either so can't really comment.
Perhaps others may add to the thread with their thoughts.
Jon

Simulating small branch office in lab network

Hi,
I have to setup what seems to be a very basic configuration, but it doesn't work.
In our lab there is a cluster of switches with a 3550 that does all the routing for vlans.
I need to simulate a sort of a small branch office that has one connection
to the outside world (the lab network).
Here is my design:
Vlan 230 (the internet)
A port on 3550 is in vlan 230 and is connected to e0/0 (172.26.230.150) on 2611 router.
e0/1 interface on a 2611 is (192.168.1.1).
A PC is connected to e0/1 (192.168.1.12).
From the router I can ping any host on vlan 230 and other vlans,
I can also ping the pc connected to e0/1.
However from the PC I can only ping 192.168.1.1(e0/1) and 172.26.230.150 (e0/0)
Below is my configuration
Thanks for your help.
R2611-1#sh run
Building configuration...
Current configuration:
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
hostname R2611-1
ip subnet-zero
ip dhcp excluded-address 192.168.1.1 192.168.1.9
ip dhcp pool 192.168.1
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
interface Ethernet0/0
ip address 172.26.230.150 255.255.255.0
no ip directed-broadcast
no ip mroute-cache
no mop enabled
interface Ethernet0/1
ip address 192.168.1.1 255.255.255.0
no ip directed-broadcast
no ip mroute-cache
ip classless
ip route 0.0.0.0 0.0.0.0 172.26.230.1
ip http server
no scheduler allocate
end

You are not performing nat on the router.
This is typically required on a box which provides internet connectivity.
Probably the other hosts on vlan 230 have no route back to the pc on 192.168.1.1
Configuring nat on the router will resolve this problem.
regards,
Leo

Branch office Exchange 2010 Role base administration control for branch site administrator

Dear sir,
   Customer has a Exchange 2010 Main and Branch office environment:
- Main office Exchange 2010 CAS x2 +HTS & Mailbox x2 (Server1,2 & Server 3,4)
  (Main office administrator:domain1\administrator) - DAG1
- Branch office Exchange 2010 CAS+HTS x2 & Mailbox with DAG x2 (Server5,6 & Server7,8
   (Branch Administrator: domain1\badmin) - DAG2
   Customer would like to know what is the role which permission should grant / delegate for ID: badmin in order to manage Exchange server 5,6,7,8 ? (with manage user account and performance in DAG2 failover & branch exchange server)
Regards,
Joe Tam

Dear Brian,
   I have try in my lab to scale down into 2 x Server in 1 AD Single Domain And Single Forest. It still have many unexpected behaviour, can you please suggest whether it is a design or bug of Exchagne 2010 SP1?
Procedure:
============================================================================
Exchange 2010 Role Delegation Problem: (Single AD, Single Site)
Environment:
Server: Windows 2008 R2 AD x1 + (CAS+HTS+Mailbox) Server x1
AD Server: AD1
Exchange2010 Server : EX2010 (with SP1) – Member Server Joined to testdomain1.net
Domain Name: testdomain1.net (NETBIOS: TESTDOMAIN1)
In AD,
Login as domain administrator: Testdomain1\administrator
1. Create an Organization Unit OU1.
2. Create User User1 under OU1
3. Delegate User1 to allow create user in OU1
Select all item in “Delegate the following common tasks:
In Exchange 2010 Server,
Login as domain administrator: Testdomain1\administrator
1. Rename existing database name to HKDB1
2. Create a new database AUDB1 in EX2010 Server:
AUDB1 Create Done.
Assign testdomain1\User1 as Exchange 2010 local administrators group.
Logoff Testdomain1\administrator and Login Testdomain1\User1
Open Exchange EMC: (Failed, because no user management roles is grant).
Logoff Testdomain1\User1, Login Testdomain1\Administrator
Open Exchange 2010 PowerShell:
Delegate User1 to allow perform recipient management in HKDB1 only:
====================================================================
New-ManagementScope "HKDBSCOPE" -DatabaseRestrictionFilter {Name -Eq 'HKDB*' }
$RoleGroup = Get-RoleGroup "Recipient Management"
New-RoleGroup "HKDBRecipientManagement" -Roles $RoleGroup.Roles -CustomConfigWriteScope "HKDBSCOPE"
Add-RoleGroupMember “HKDBRecipientMANAGEMENT” -Member User1
====================================================================
Result:
In Exchange 2010 Server, logon as domain user: Testdomain1\User1
Open Exchange Management Console: (User1 able to open EMC now)
Perform Create User User2 in OU1 with Mailbox located in HKDB1
Mailbox Creation Failed because it cannot match the Database name = HKDB*
Logoff Testdomain1\User1, Login Testdomain1\Administrator
In Exchange Management Shell, enter:
Set-ManagementScope "HKDBSCOPE" -DatabaseRestrictionFilter {Name -Like 'HKDB*' }
Logoff Testdomain1\administrator, Login Testdomain1\User1
Open Exchange Mangement Shell and Create User2 again.
Create user successfully.
Perform create User User3 in OU1 with Mailbox located in AUDB1
User3 Creation Failed because it is not meet the Database restriction of User1 – Like HKDB*
Logoff Testdomain1\User1, Login Testdomain1\Administrator
Open Exchange Management Console, create User3 in AUDB1
Create User3 in Users Container, by administrator ID.
Logoff Testdomain1\administrator, Login Testdomain1\User1
Perform mailbox remove of User2
User2 mailbox remove successfully.
Perform deletion of User3
Mailbox User3 Remove Successfully.
Why User3 is allowed to deleted mailbox which is located in by using delegated of User1?
Moreover, it found that User3 properties can also be changed by using User1. Why?
Does it mean delegation cannot handle delete operation?
In Active Directory User and Computer: User2 is deleted successfully by using User1 ID.
In Active Directory User and Computer: User3 is also deleted successfully by using User1 ID.

Branch office PSTN call routing

Customer had HQ and Branch office with 512 MPLS line, in HQ alone they had E1 trunk, in branch office for calling PSTN the call should travel via MPLS to HQ, and the branch PSTN call terminated in HQ only, is it a good design or better we need to add ISDN line in branch level to terminate the PSTN call.

Balamurugan:
1) I think it is possible. My R&S skills are oxidized but you can have MPLS VPN configured and use frame-relay as a serial encapsulation where you will be able to configure RTP header compression.
2) RSVP over MPLS: yes. But as Marwashawi said, I prefer to work with the LLQ QOS for voice traffic. For that you will need to agree that with your service provider.
Rad Baver
BALAMURUGAN SINGARAM escribió:Thanks for the reply, branch to branch they are using 512 KBPS with VPN tunnel, g729 codec is used in between HQ and branch, the issuse is voice quality between the branche and HQ, the ping round trip delay is more than 250 MS [ no packet drops ], QOS is applied in switch and CUCM level, could you please light me do we can fine tune more on WAN interface level.1) do it possible to use header compression on MPLS cloud2) do it possible to enable "RSVP" in MPLS link.Could you please light me on how to enable RSVP & Header compression on MPLS link.

Branch office setup with L3 switch and router with IOS security

Hello,
I am in the process of putting together a small branch office network and I am in need of some design advise. The network will support about 10-15 workstations/phones, 3-4 printers, and 4-5 servers. In addition we will eventually have up to 25-30 remote users connecting to the servers via remote access VPN, and there will also be 2-3 site-to-site IPSec tunnels to reach other branches.
I have a 2911 (security bundle) router and 3560 IP Base L3 switch to work with. I have attached a basic diagram of my topology. My initial design plan for the network was to setup separate VLANs for workstation, phone, printer, and server traffic. The 3560 would then be setup with SVIs to perform routing between VLANs. The port between the router and switch would be setup as a routed port, and static routes would be applied on the switch and router as necessary. The thought behind this was that I'd be utilizing the switch backplane for VLAN routing instead instead of doing router-on-a-stick.
Since there is no firewall between the switch and router my plan was to setup IOS firewalling on the router. From what I am reading ZBF is my best option for this. What I was hoping for was a way to set custom policies for each VLAN, but it seems that zones are applied per interface. Since the interface between the router and switch is a routed interface, not a trunk/subinterface(s), it doesn't seem like there would be a way for me to use ZBF to control traffic on different VLANs. From what I am gathering I would have to group all of my internal network into one zone, or I would have to scrap L3 switching all together and do router-on-a-stick if I want to be able to set separate policies for each VLAN. Am I correct in my thinking here?
I guess what I am getting at is that I really don't want to do router-on-a-stick if I have a nice switch backplane to do all of the internal routing. At the same time I obviously need some kind of firewalling done on the router, and since different VLANs have different security requirements the firewalling needs to be fairly granular.
If I am indeed correct in the above thinking what would be the best solution for my scenario? That is, how can I setup this network so that I am utilizing the switch to do L3 routing while also leveraging the firewall capabilities of IOS security?
Any input would be appreciated.
Thanks,
Austin

Thanks for the input.
1. I agree, since I have only three to four printers, they need not be in a separate VLAN. I simply was compartmentalizing VLANs by function when I initially came up with the design.
2. Here's a little more info on the phone situation. The phones are VoIP. The IP PBX is on premise, but they are currently on a completely separate ISP/network. The goal in the future is to converge the data and voice networks and setup PBR/route maps to route voice traffic out the voice ISP and data traffic out the other ISP. This leads up to #3.
3. The reason a router was purchased over a firewall was that ASA's cannot handle routing and dual ISPs very well. PBR is not supported at all on an ASA, and dual ISPs can only be setup in an active/standby state. Also, an ASA Sec+ does not have near the VPN capabilities that the 2911 security does. The ASA Sec+ would support only 25 concurrent IPSec connections while the 2911 security is capable of doing an upwards of 200 IPSec connections.
Your point about moving the SVI's to a firewall to perform filtering between VLANs makes sense, however, wouldn't this be the same thing as creating subinterfaces on a router? In both cases you are moving routing from the switch backplane to the firewall/routing device, which is what I am trying to avoid.

Small branch office network

We have a small branch office (7 users) that will be moving to a building that has a Wireless Residential Gateway (Model: DPC3829). This device provides wifi for 2 other tenants on the same floor. Can we connect another wireless router to this wireless residential gateway device and create our own SSID so that we don't have to use the wifi settings that the other 2 tenants connect to?
I've attached a picture of what the back of the DPC3829 currently looks like. I am thinking I can plug that yellow network cable into another wireless router and create our own wireless network (obviously off of their internet connection) for our 7 users.
Thank you for your help.

u may but any plane wireless device and run it in bridge mode (shouldd run by default i beleive). Then connect one of its lan port to any one of the lan ports available on the DPC3829 thing.
you are correct in what you want to do, and it can be done no problem.
Regards
Please mark answer as correct if it helps.

VPN CLient TO access HO through BRanch office

We have a branch office using cisco 1841 , which makes vpn to HO (ASA 5505)
, both (1841 and asa )have VPN CLient Configured .we need Branch office VPN software client users to Connect to HO netword.i have tried but iam missimg out some where. I've attached some configs of both devices.can any one help ASAP.

Here is the URL for the Configuring and Managing Connection Entries for the VPN follow the steps for configuration which will help you :
http://www.cisco.com/en/US/products/sw/secursw/ps2308/products_user_guide_chapter09186a008015e271.html

Windows 8.1 laptop not connecting to domain in branch office

We have a problem with a laptop.
It is installed in our Head office (The Netherlands), just like all other laptops by using an image.
Tested and working on the domain.
The user had to go to one of our branch offices (China) and when he connected there, the laptop just won't connect to the domain.
When he plugged in the laptop, it keeps trying to connect it's directaccess.
Other laptops (same image) immediately recognize the domain network, but this laptop just won't.
I am able to ping everything on the local network (MPLS connection), from HQ to all Branch offices but not access them.
I've tried changing the DNS settings, but without any result.
Any suggestions?

Hi,
According to this tool's description, I think it should be helpful to check system current enviroment, such as network, certificates, etc. problem. Actually according to your description, I doubt it probably network enviroment of ISP problem, but we should
find a way to verify our suspect. Then this tool would be convenient, it also would generate a trace log and it would be helpful with troubleshooting.
The DirectAccess Client Troubleshooting Tool is a graphical application, based on the .NET Framework, which checks the health of a DirectAccess client by running various tests. Built-in health tests: The following tests are currently implemented:
Network interfaces Network location (NLS and NRPT DNS) IP connectivity (6to4, Teredo, IPHTTPS, entry point in a multisite setup, DNS) Windows Firewall (applied profile, Firewall outbound rules) Certificates (EKU Client Authentication, trust chain for AIA and
CRL) IPsec infrastructure tunnel (Domain SysVol share) IPsec intranet tunnel (PING and HTTP probes) Additional features Run post-check script (PowerShell, VBScript, BAT or CMD file)
Roger Lu
TechNet Community Support

Branch office

how deal with when u are trading with different branch offices of company.

With vendors/customers having one head office and multiple branches, you have to create master data for all of them. Maintain head office account field in the branch accounts master data.

Branch Office Connectivity

hi
we have firewall setup in our main office with following setup:
we are running DC on Windows 2008 Servers with MS Exchange 2010, lync 2010 and ip phone as well.
planning to setup AD replication to our branch offices for network drive access and group policy update; kindly advice on this.
Best Regards,
Ramesh TP

Hi
i think you mean about best practice topology.
First of all,you will add Additional Domain Controllers on your branch offices.Also This ADC will have DNS,DHCP role based.And will deploy a File server.
Important point is structure you want to build.
This is a detailed article about domain topologies, So please check this article about your questions;
https://msdn.microsoft.com/en-us/library/cc749945.aspx?=255&MSPPError=-2147217396

Branch office installation of Oracle 8i Lite

I have developed a Java application using Oracle 8i Lite. I know, how to extract a required datbase file and supporitng run time files using deploy utility for stand alone machine. Thus, i can zip and send those file by email or thru web server to the client for installation on stand alone machine.
Since we can not use the Web to GO server, we want to send the Branch office database and its run time files (Only required files for running and not for developing) for server as well as for client to work in the LAN in the same manner as how deployed on stand alone machine without sending the Oracle lite CD and without using the Web to GO server.
In short, we want to install the Branch office Database machine files and Branch office client files by sending only required files in email without using web to go server and without sending Oracle lite CD.
Advance thanks for your valuable reply.
Thansk and Best regards
M.Thiagarajan

It would help if you told us the exact problem description and ... post in the correct forum. This forum is dedicated to oracle on apple's macosX.
What is the problem ?
Ronald.
http://ronr.nl/unix-dba

Branch office logic from SD

The business scenario I'm trying to address is:
we have multiple customers/shiptos that order, have credits issued for, and an individual credit limit set - but one corporate office that pays all of the bills and wants to take credits from shipto A for a balance on shipto B.
I know about and have set up the head office/branch office relationship and about setting the Payer partner to = the head office. The problem with this set up is that it rolls into one credit limit (head office customer) rather than each branch having it's own. If I change the payer to = the branch office, then it does not show up within open items or cash app in FI under the head office.
Has anyone figured out how to keep seperate credit accounts for the branch offices but apply cash from a corporate level?

The variable WDSSERVER is a variable that is figured out by MDT when booting a machine using the boot image created by Microsoft Deployment Toolkit. Therefore it is not available in Windows.
If you want different WSUS servers depending on location of the client you can use for instance this technique in CustomSettings.ini. This will point clients on a specific subnet to a specific WSUS server.
[Settings]
Priority=DefaultGateway,Default
[DefaultGateway]
10.0.0.1=HQ
10.0.1.1=BranchOffice
[HQ]
WSUSServer=http://wsus-hq:8530
[BranchOffice]
WSUSServer=http://wsus-branch:8530
Blogging about Windows for IT pros at
www.theexperienceblog.com

Branch Office CME design Verification

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