Two controllers on the same subnet

One of our office that already has 1 2000 controller needs to install another one. Can the new controller be on the same subnet as the old one or does it have to be on a different subnet?
thanks

Roaming is an 8 hour conversation in itself, but I will answer your question with a 'yes', you should have a mobility group defined if wireless clients may move between APs associated with different controllers.
Roaming actually has much more to do with the wireless security in use, the config of the client and back-end user database, and the layer 2 connectivity of the multiple controllers.
If you are using WEP or WPA pre-shared-key with the same layer-2 termination on the controllers, then your users really aren't 'roaming' at all, they are constantly re-associating to the different APs anyway.
Roaming, in my mind, means 'fast roaming' meaning less than 100 ms. This would require either Cisco proprietary CCKM, or some of the *sort of* WPA2 fast-reconnect features.

Similar Messages

Two WLC over the same SUBNET - selection from AP for determinate WLC

Hi
I have the next problem, my company have two WLC (WISM1 - IOS 7.0 and WLC2504 - IOS 7.4), and we have 4 types of APs (1131, 1242, 1040 and 1600), well the WISM 1 manages the old APs 1131, 1040 and 1242, the 2504 manages the 1600, this because the WISM 1 don't support the 1600
Well my question its how i can assigned to APs 1131, 1242 and 1040 to connect to WISM1 and not to 2504 , both are on the same subnet and the Ip its send for DHCP with option 43, others for DNS and apparently some of my APs connected to the 2504, I wish only connect to WISM 1
How i can set priority in the AP for conect to WISM1?, i read the High Availability on the AP, this is enough or should we make any extra settings the WLC
Thanks for the response
Regards

To understand the working of HA kindly study the following link .It will provide you step by step solution to the query
Hi Kashif,
I don't think you understand the nature of this thread. It is IMPOSSIBLE to configure a 2504 & a WiSM-1 for HA (AP SSO).

I need map two controllers to the same button.

So I have a button at Concert level in MainStage that is set to Actions>Play/Stop. This turns my click track (UltraBeat) on/off. I want to be able to control this with two different "controllers". I've got everything working fine having 2 seperate buttons in my MainStage concert but there must be a way to just have one mapped button be controled by two different controllers. For example, my drummer uses a Yamaha DTX drum pad and I use an FCB1010 foot controller. I want us both to be able to stop/start UltraBeat without having two seperate buttons in my MainStage layout.

Hi
You do realise that Mainstage 2.2 has a new "Assignments and Mappings" pane in Edit mode that will enable you to assign incoming MIDI messages and map them to MS functions without the need for Screen Controls?
Using this method, it would be simple to have one MIDI device control the Click playback using a Screen Control (for visual feedback that it is on etc), with a second mapped to the same parameter using Assignments and Mappings.
Alternatively, you would need to get both MIDI controllers to send the same MIDI message (say CC71), and then set one Screen Control to 'listen' to All MIDI ports (and possibly all MIDI Channels) using the Screen Control Inspector.
CCT

Two different Routers and same subnet, is it possible?

Hi i have been presented with a problem that a friend of mine is having.
There is two different Cisco routers on different location.
example:
router1 : 10.8.10.1 (has DHCP/FTP server)
router2 : 10.8.12.1 (needs to talk to DHCP/FTP server on router1)
the router2 has different ip configured but is it possible to change this to the same subnet as router 1? like 10.8.10.4?
The DHCP/FTP server have been defined with scope 10.8.12.0 and on the Cisco switch on router2 its been configured (ip helper address DHCP-IP)
this works, the clients connected to router2 gets ip from DHCP server ,but there is no FTP traffic.
i figure its because the DHCP/FTP server doesent understand the other IP, so if its possible to setup a kind of mulitVPN to get the same subnet on router2 as router1 the FTP server can "see" the other router2 because it has the same subnet and ip range.
Thank you for any experience, i really stuck on this one

John,
to simply put it having two routers on the same subnet is not possible as the purpose of a router is to route traffic between DIFFERENT networks. In order to accomplish this you will need routers and switches that understand VLANs and VLAN tagging.
Hope this Helps
Blake Wright
Cisco SBSC Network Engineer

How do I load balance TFTP between two servers and a client on the same subnet?

Hi,
I have trawled through several documents and tried umpteen different configs, all to no avail. I have a PXE boot client trying to access a boot file via TFTP from a couple of TFTP servers on the same VLAN/subnet. For HA purposes I want to load balance the two TFTP servers.
Config is currently;
=====
probe icmp ICMP_PROBE
description icmp probe for default gateway tracking
interval 5
passdetect interval 15
rserver host server1
description Server1
ip address 10.0.0.1
inservice
rserver host server2
description Server 2
ip address 10.0.0.2
inservice
serverfarm host serverfarm_01
description servers used
probe ICMP_PROBE
rserver server1
    inservice
rserver server2
    inservice
class-map match-all L4_VIP_TFTP
10 match virtual-address 10.0.0.10 udp eq 69
policy-map type loadbalance first-match L7_TFTP
class class-default
    serverfarm serverfarm_01
policy-map multi-match L4_LB_VIP_POLICY
class L4_VIP_TFTP
    loadbalance vip inservice
    loadbalance policy L7_TFTP
    loadbalance vip icmp-reply active
nat dynamic 1 vlan 200
interface vlan 200
ip address 10.0.0.250 255.255.255.0
nat-pool 1 10.0.0.241 10.0.0.243 netmask 255.255.255.255 pat
service-policy input L4_LB_VIP_POLICY
no shutdown
ip route 0.0.0.0 0.0.0.0 10.0.0.254
=====
I have read the doco by Ivan Kovacevic amongst many others but as my clients and servers are on the same subnet, the config doesnt work.
Can anybody point me in the right direction please. The devices are ACE 4710 running A3(2.3).
Thanks

Try using the following configuration:
Note: Please make sure to configure also a udp probe to probe udp port 69, in case the application is down.
You need to configure a management policy on the interface when using a UDP probe.
That is because, when port 69 on the server will be unreachable, the server will send an ICMP unreachable.
ACE will consider a udp probe as "failed" only when it sees ICMP unreachable.
Without a management policy-map, the ICMP unreachable message will be dropped.
Also, add an ICMP probe to the rserver because udp probe will not be enough when the physical interface will be down.
That is because UDP is a connection-less protocol. To consider a UDP probe successfull, ACE need to see NO answer from the server in respose to the probe.
The ACE will not see any answer from the server when the interface is down and thus, will consider the probe as "sucessful".
With ICMP probe attached to the rserver, you also test the reachability of the server and not only the UDP port.
Here is the configuration (of course, you can chage the names of the of the objects to the name you are using if you want) :
access-list ALL line 10 extended permit ip any any
probe udp TFTP
port 69
interval 5
passdetect interval 15
probe icmp ICMP_PROBE
interval 5
passdetect interval 15
rserver host TFTP_1
ip address 10.0.0.1
probe TFTP
probe ICMP_PROBE
inservice
rserver host TFTP_2
ip address 10.0.0.2
probe TFTP
probe ICMP_PROBE
inservice
serverfarm host TFTP-SFARM
rserver TFTP_1
    inservice
rserver TFTP_2
    inservice
sticky ip-netmask 255.255.255.255 address source TFTP-STICKY
timeout 10
replicate sticky
serverfarm TFTP-SFARM
class-map type management match-any MANAGE
2 match protocol icmp any
class-map match-all NAT
2 match virtual-address 0.0.0.0 0.0.0.0 udp any
class-map match-all TFTP
2 match virtual-address 10.0.0.10 udp eq 69
policy-map type management first-match MANAGE
class MANAGE
    permit
policy-map type loadbalance first-match ROUTE
class class-default
    forward
policy-map type loadbalance first-match TFTP-POL
class class-default
    sticky-serverfarm TFTP-STICKY
policy-map multi-match TFTP-MULTI
class TFTP
    loadbalance vip inservice
    loadbalance policy TFTP-POL
    nat dynamic 1 vlan 212
class NAT
    loadbalance vip inservice
    loadbalance policy ROUTE
    nat dynamic 2 vlan 212
interface vlan 212
ip address 10.0.0.250 255.255.255.0
no normalization
access-group input ALL
nat-pool 1 10.0.0.241 10.0.0.243 netmask 255.255.255.0 pat
nat-pool 2 10.0.0.10 10.0.0.10 netmask 255.255.255.0 pat
service-policy input TFTP-MULTI
service-policy input MANAGE
no shutdown
Let me know how it goes.
Good luck!

Is it possible to create two multicast DR on the same subnet?

on server vlan 10.24.254.0/24, there are two routers:
R1 is .2 and R2 is .3 with "IP pim sparse-mode" enabled.
R1 and R2 are on two distinct Mcast domains
R1 has
ip pim rp-address 10.25.249.1 acl-one override
R2 has
ip pim rp-address 192.168.2.1 acl-two override
The problem is R2 with higher IP address is now the IGMP and PIM DR. Any multicast app with RP 10.25.249.1 is NOT working because R1 can't receive IGMP join from servers.
In addition, R1 by design can not reach 192.168.2.1 and same for R2 to reach 10.25.249.1
Thus configuring two "IP PIM rp-address" is not possible
how can I make R1 the DR for group IP under acl-one and R2 for group IP acl-two?
or I have to change network topology?

There can be only one DR on a the same subnet.If there are more than one DR on the same subnet it would endup sending duplicate multicast traffic for connected host.For more information refer the URL
http://www.cisco.com/en/US/products/ps5763/products_configuration_guide_chapter09186a0080312878.html#wp1091449

SCVMM 2012 R2 – two iSCSI network interfaces connected to the same subnet

I would like to configure two networks in SCVMM 2012 R2 which will be used by VMs to connect to iSCSI SAN. Both of these networks should be connected to the same subnet (192.168.100.0/24) because they will connect VMs to Dell EqualLogic using iSCSI MPIO.
Those networks should be available on all Windows Server 2012 R2 Hyper-V cluster nodes.
When I try to create two logical networks in SCVMM with the same subnet, I receive error (Unable to assign the subnet 192.168.100.0/24 because it overlaps with an existing subnet)
How should I configure networking in SCVMM to allow one virtual machine to connect to the same subnet using two network interfaces?

"How should I configure networking in SCVMM to allow one virtual machine to connect to the same subnet using two network interfaces?"
You can achieve this by simply adding multiple vNICs to a VM - connected to the same VM Network.
-kn
Kristian (Virtualization and some coffee: http://kristiannese.blogspot.com )

Two Domain Controllers with the Same Name

So I was working on setting up our new branch office DC. Anyway, the server failed to join the domain the first time because it upgraded the AD schema (This was our first 2012 R2 server) and the schema wasn't synced to all the other remote offices. So I
forced a sync, joined the server as a workstation, then made it a domain controller.
Anyway, after that the server would show itself as a DC in Active Directory, but all the other servers believed it was just a workstation. So, I removed Active Directory from the server (I had to force the removal). I reset the computer account on the local
DCs, then rejoined it to the domain and made it a domain controller again. This time, it appeared as a Domain Controller on the other DCs in the domain.
Now for the issue --- I've now got two objects for the server under AD Sites and Services. One of them doesn't appear to have any AD DS connections. The other has connections, but not all of them work correctly (I get errors when I tell certain connections
to sync).
What should I do to fix this?
I'm still in the setup phase of this, so I can do anything I want with this particular server. I was thinking I would demote from a Domain Controller, remove it from the domain. Then use ntdsutil to cleanup any other metadata that is hanging around in AD (Something
like: https://support.microsoft.com/KB/216498?wa=wsignin1.0 )
Does anyone else have suggestions on what I should do to fix this? --- I'm being overly cautious here as I do not want to mess anything up in Active Directory.
Thanks!

I have not done a metadata cleanup.... I was asking if I should.
The connections on the valid server appeared to be working before I deleted them (Maybe it took a while to replicate ? )
So I went through and deleted all the AD Sites and Services connections from both servers (The broken server had 5 connections to the same DC in another site). Anyway, I ran repadmin /kcc and it regenerated a connection to a server in the remote site, but
it also generated a connection between the two servers with the same name. I ran dcdiag after I did the repadmin /kcc. Anyway it shows:
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
Home Server = DC-01-CLE
* Identified AD Forest.
Done gathering initial info.
Doing initial required tests
Testing server: Cleveland\DC-01-CLE
Starting test: Connectivity
......................... DC-01-CLE passed test Connectivity
Testing server:
Cleveland\DC-01-CLE\0ACNF:203cf49f-8cb3-4915-b122-be31ddd6e10e
Starting test: Connectivity
[DC-01-CLE\0ACNF:203cf49f-8cb3-4915-b122-be31ddd6e10e]
DsBindWithSpnEx() failed with error 5,
Access is denied..
Got error while checking LDAP and RPC connectivity. Please check your
firewall settings.
DC-01-CLE\0ACNF:203cf49f-8cb3-4915-b122-be31ddd6e10e failed test
Connectivity
Doing primary tests
Testing server: Cleveland\DC-01-CLE
Starting test: Advertising
......................... DC-01-CLE passed test Advertising
Starting test: FrsEvent
......................... DC-01-CLE passed test FrsEvent
Starting test: DFSREvent
......................... DC-01-CLE passed test DFSREvent
Starting test: SysVolCheck
......................... DC-01-CLE passed test SysVolCheck
Starting test: KccEvent
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 09:58:02
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 09:58:02
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 09:58:02
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 09:58:11
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 09:58:11
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 09:58:11
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 10:03:37
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 10:03:37
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
A warning event occurred. EventID: 0x80000785
Time Generated: 12/15/2014 10:03:37
Event String:
The attempt to establish a replication link for the following writable directory partition failed.
......................... DC-01-CLE passed test KccEvent
Starting test: KnowsOfRoleHolders
......................... DC-01-CLE passed test KnowsOfRoleHolders
Starting test: MachineAccount
......................... DC-01-CLE passed test MachineAccount
Starting test: NCSecDesc
......................... DC-01-CLE passed test NCSecDesc
Starting test: NetLogons
......................... DC-01-CLE passed test NetLogons
Starting test: ObjectsReplicated
......................... DC-01-CLE passed test ObjectsReplicated
Starting test: Replications
......................... DC-01-CLE passed test Replications
Starting test: RidManager
......................... DC-01-CLE passed test RidManager
Starting test: Services
......................... DC-01-CLE passed test Services
Starting test: SystemLog
A warning event occurred. EventID: 0x00001795
Time Generated: 12/15/2014 10:03:37
Event String:
The program lsass.exe, with the assigned process ID 600, could not authenticate locally by using the target name LDAP/a23a13d0-8434-4344-bd6b-24fdf5576329._msdcs.mydomain.local. The target name used is not valid. A target name should refer to one of the local computer names, for example, the DNS host name.
......................... DC-01-CLE passed test SystemLog
Starting test: VerifyReferences
......................... DC-01-CLE passed test VerifyReferences
Testing server:
Cleveland\DC-01-CLE\0ACNF:203cf49f-8cb3-4915-b122-be31ddd6e10e
Skipping all tests, because server
DC-01-CLE\0ACNF:203cf49f-8cb3-4915-b122-be31ddd6e10e is not responding to
directory service requests.
Running partition tests on : DomainDnsZones
Starting test: CheckSDRefDom
......................... DomainDnsZones passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... DomainDnsZones passed test
CrossRefValidation
Running partition tests on : ForestDnsZones
Starting test: CheckSDRefDom
......................... ForestDnsZones passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... ForestDnsZones passed test
CrossRefValidation
Running partition tests on : Schema
Starting test: CheckSDRefDom
......................... Schema passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... Schema passed test CrossRefValidation
Running partition tests on : Configuration
Starting test: CheckSDRefDom
......................... Configuration passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... Configuration passed test CrossRefValidation
Running partition tests on : mydomain
Starting test: CheckSDRefDom
......................... mydomain passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... mydomain passed test CrossRefValidation
Running enterprise tests on : mydomain.local
Starting test: LocatorCheck
......................... mydomain.local passed test LocatorCheck
Starting test: Intersite
Doing intersite inbound replication test on site Cleveland:
......................... mydomain.local passed test Intersite
I've attached a screenshot of AD Sites and Services. Please note I've erased some info for privacy reasons (The site the other DC is in has been erase as well as part of its name).
Picture of AD Sites and Services

Can 2 vlans have the same subnet?

I hope the combined genius of the fellow community can answer me this. I am new to Cisco, and I understand VLANs as a physical boundary separating broadcast domains.
I was wondering if it is possible to divide 1 subnet (192.168.1.0) into two separate VLANS? I have all layer 3 switches in my environment. Making matters worse, there would be no pattern for the IP address assignments into VLAN-A vs. VLAN-B..
If this is possible, can you please explain the mechanisms for a successful implementation.

It mostly depends if/how you want hosts on them to talk one another (or other networks).
If the answer is "not at all" then you can have as many VLANs as you like using the same subnet.
If the answer is "completely" then you have to either a. break your addressing (L3) down to have one set of hosts in subnet A (on vlan a) and the others in subnet b (on VLAN b). or b. have some fancy tricks in place with network address translation (NAT) in place.
I'll leave the latter solution off as beyond the scope of your question.
For the former, you would just change your subnet mask - for example, if the classful subnet is a "standard" /24 (255.255.255.0) then split it in two - /25 or 255.255.255.128. Assign hosts in one or the other.
You have to have some pattern - all networking is based on patterns in some way or another.

Connecting to two networks at the same time

Hi Kadin,
I am looking for the same answer for a long time. I have two situations that requires to connect to two different metworks and that is when I travel with my portable Linksys router WRT54GC .
1. I stay at a hotel with a wireless Internet network connection and I try to use the network to access the Internet and then (2) I also need to access my external Maxtor harddrive to which I am connected through my portable router WRT54GC .
2. I have an almost identical situation but instead of the hotel network now I have a brand new T-Mobil cell phone made by ITC, which is called Wings and it uses a new way to connect my laptop to the Internet by using a Windows Mobile 6 Internet-share connection, which basically connects my laptop to the T-Mobile network and assigns it a IP address.
The problem that I have is that in both cases I can connect to each one of the networks separately but not simultaneously.
Any advise as to how this can be done. I also tried the Wireless WET54G as a bridge with similar negative results.
Thanks,
Pole

Ok not real clear on your setup, but here is the "networking answer" why you can not connect to two networks.
A device must have an IP address on the same subnet of the device you want to establish a connection or an IP route must be known to the network routers, since your internal address are most likely in the reserved private range, no internet router is not going to know how to deliver the packets to the correct hosts.
the simple answer is assign a secondary IP address to the network adapter on your laptop.
In the windows IP address properties for secondary address you can not set a default gateway. Windows only has 1 default gateway.
good luck
jwm

Can VIP and Rservers be in the same subnet in ACE Routed Mode

Good Day,
Sorry for the lengthy post.
Currently I have a 6509s running in VSS mode with ACE30 in each chassis.
I have 5 vlans, which the VSS is the L3 interface for each. 1 Vlan is for management, the others are the data vlans for the servers.
The ACE is configured in bridge mode, with all VLANs going to a specific context (non Admin).
Some of the Host on each VLANs are not utilized for load-balancing. The default gateway for each VLAN is configured on the VSS.
I would like to setup the ACE in the routed mode, without having to change the IP address of each servers on different VLANs.
Basically I want to turn off the SVIs on VSS and move the L3 interface on the ACE Context, and let it perform the local routing for all the hosts.
I was going to add a new /30 L3 interface between the VSS and ACE to be utilized for default route traffic coming from the ACE Context, and static routes from VSS to ACE for traffic destined to host that are being load-balanced and not being load-balanced. Basically force the traffic through the load-balancer in/out.
For future deployment, I was planning on using different IP address for the VIPs, and Real servers (most likely RFC 1918).
From most of the examples I have seen the VIP and Rservers are in different Subnets. But because I am trying to not change the IP address of the rservers and VIP, I wanted to know if the VIP and Rservers can be configured to be in the same subnet where the ACE is in routed mode.
Unfortunately I don't have a spare ACE to test scenario.
As always any help would greatly be appreciated.
Regards,
Raman

Link-local addresses are usually the self assigned IP address that a device will set when a DHCP server cannot be found. These are the addresses with 169.254.x.x subnet.
If the router is assigning IP addresses for your network, then they will usually have a different IP subnet, possibly 192.168.0 for D-Link. And this subnet would be for the wired and wireless connections. So it would be more a case of bridging the two network topolgies rather than routing them.
The network host is busy message could be more to do with the driver and the IP protocol selected when creating the queue than the connection being broken between the Mac and printer. If you were to open Network Utility and select the Ping tab, enter the IP address of the HP and set the pings to 4, pressing the Ping button will soon show if there is a path through the wireless to the printer.
If you get a response to the ping you could then open Safari and type the ip address as the URL. This would then connect to the internal web page of the printer and possibly let you enable an IP protocol like LPR so that you can use LPD on the Mac instead of Bonjour to connect to the printer.
As for the driver, you could look at using a Gutenprint driver instead of the HP driver or the hpijs package to get past the limitations that some printer drivers have with network connections.

How to check two IPs in the same subnetwork?

It seems java.net package doesn't provide this mothod.
thx.

I'm not sure I understand what your asking for. You want to determine if to ip addresses are in the same subnet?
If so, you need to know the netmask-configuration for the two addresses. Then compare the bits in the two ip-addresses in all positions where the netmask has bit its bit set.
In many cases netmask is set to 255.255.255.0, so you can compare the leading three parts of the two ip addresses. However, this simple check will give false results when the netmask is not 255.255.255.0.

Multiple 11gR2 Clusterware installations on the same subnet using GNS

Hi,
I am hoping someone could shed some light on an issue I appear to have regarding the installation of 11gR2 Clusterware.   The main issue is that I have a host-vip.subdomain that fails to startup on installation. This is my 3rd cluster in my environment; the other 2 installed/configured ..fine.   This install fails because the host-vip.subdomain does not resolve with its own GNS service.
Further investigation lead me down a path involving my other clusters.   I found in my DNS server /var/log/messages file that the host-vip.subdomain was trying to resolve to host-vip.subdmain.subdomain_clust1 on IP xx.xxx.130.20.   However, this cluster's GNS service is listening on xx.xxx.130.22
More detail on the environment:
I currently have in production, two 2-node clusters.   Not RAC..just 2-node linux clusters; On the production clusters, I do have a single-instance database running in a 'warm failover' configuration.   I do use SCAN to access each of the database on their respective clusters.
I am using GNS and DHCP (obviously) to generate the VIPs for each cluster.    Cluster1 GNS IP - xx.xxx.130.20 ; Cluster2 GNS IP xx.xxx.130.21.   Both are configured in DNS and resolve the SCAN address to each of the VIPs on that server.
When testing SCAN access to the database, I noticed that a tnsping DB1 - which uses SCAN-name1.subdomain1 connects fine.   Also, tnsping to DB2 using SCAN-name2.subdomain2 connects fine as well.
However, the weird part is that if I use each others subdomain..they still connect ...ie....tnsping DB1 using SCAN-name1.subdomain2 ...still connects to DB1.. albeit , it takes about 10x longer to get a response.
This has lead me to the idea that since GNS is basically a mDNS service, broadcasting on the subnet .130...could it be possible that ANY GNS service on that subnet could resolve a name lookup request for any other GNS on the same subnet , and during installation of a new server, cause a new VIP to go to the wrong GNS service ?
So, my question is this : Is there any requirement I may have missed that state multiple Clusters using GNS / SCAN MUST BE on different subnets, as to not interfere with each other's lookup requests ?
Any info would be helpful
~ Allan

Was able to override the multicast address thru the command line and have just P1 work with
the following overrides.
-Dtangosol.coherence.clusteraddress=P1Cluster -Dtangosol.coherence.clusterport=11111
where p1Cluster=224.2.1.99 (say)
Thanks,
Vipin

Multiple Clusters on the same subnet

Hi,
We have two separate projects using coherence (3.5.2) in our location.
Unfortunately they will be deployed on the same subnet.
We use ExtencdTCP on the client side to connect to the cluster.
What steps should be taken so that Project1 (P1) is kept separate from P2...
We only have control over P1 or is there something that can be done purely from P1 config that will achieve this aim?
The config for the client is given below, since we can restrict the hostnames and the ports in the tcp-initiator elements, we can easily force the client to connect only to the relevant P1 machines.
+<cache-config xmlns="http://schemas.tangosol.com/cache">+
+<caching-scheme-mapping>+
+<cache-mapping>+
+<cache-name>dist-*</cache-name>+
+<scheme-name>extend-direct</scheme-name>+
+</cache-mapping>+
+</caching-scheme-mapping>+
+<caching-schemes>+
+<remote-cache-scheme>+
+<scheme-name>extend-direct</scheme-name>+
+<service-name>ExtendTcpCacheService</service-name>+
+<initiator-config>+
+<tcp-initiator>+
+<remote-addresses>+
+          <socket-address>+
+<address>P1.1</address>+
+<port>8078</port>+
+</socket-address>+
+               <socket-address>+
+                    <address>P1.2</address>+
+                    <port>8078</port>+
+               </socket-address>+
+               +
+          </remote-addresses>+
+</tcp-initiator>+
+<outgoing-message-handler>+
+               <heartbeat-interval>50s</heartbeat-interval>+
+               <heartbeat-timeout>35s</heartbeat-timeout>+
+               <request-timeout>30s</request-timeout>+
+          </outgoing-message-handler>+
+</initiator-config>+
+</remote-cache-scheme>+
+</caching-schemes>+
+</cache-config>+
On the server(s) there are
a.ExtendTCPService running on each
b.Mulitple cache servers with a distributed scheme running
The cache-config for the server is given below, how can we restrict the hosts that it searches for for clusters to join?
We noticed the configuration elements clusterport etc. that seem to be able to do this also authorized-hosts? Can this be done in the cache-config element or only in the cluster-config element.
+<?xml version="1.0"?>+
+
+<!DOCTYPE cache-config SYSTEM "cache-config.dtd">+
+<cache-config>+
+     <logging-config>+
+     <destination>cache-server.log</destination>+
+     <destination>stderr</destination>+
+     </logging-config>+
+<caching-scheme-mapping>+
+<cache-mapping>+
+<cache-name>dist-*</cache-name>+
+<scheme-name>dist-default</scheme-name>+
+</cache-mapping>+
+<cache-mapping>+
+<cache-name>repl-*</cache-name>+
+<scheme-name>repl-default</scheme-name>+
+</cache-mapping>+
+</caching-scheme-mapping>+
+<caching-schemes>+
+<distributed-scheme>+
+<scheme-name>dist-default</scheme-name>+
+<serializer>+
+          <class-name>com.tangosol.io.pof.ConfigurablePofContext</class-name>+
+          <init-params>+
+          <init-param>+
+               <param-type>string</param-type>+
+               <param-value>custom-types-pof-config.xml</param-value>+
+          </init-param>+
+          </init-params>+
+     </serializer>+
+<backing-map-scheme>+
+<local-scheme/>+
+</backing-map-scheme>+
+<autostart>true</autostart>+
+</distributed-scheme>+
+<replicated-scheme>+
+<scheme-name>repl-default</scheme-name>+
+<backing-map-scheme>+
+<local-scheme/>+
+</backing-map-scheme>+
+<autostart>true</autostart>+
+</replicated-scheme>+
+<proxy-scheme>+
+<service-name>ExtendTcpProxyService</service-name>+
+<thread-count>5</thread-count>+
+<acceptor-config>+
+<tcp-acceptor>+
+<local-address>+
+<address>localhost</address>+
+<port>8078</port>+
+</local-address>+
+</tcp-acceptor>+
+<serializer>+
+<class-name>com.tangosol.io.pof.ConfigurablePofContext</class-name>+
+<init-params>+
+<init-param>+
+<param-type>string</param-type>+
+<param-value>custom-types-pof-config.xml</param-value>+
+</init-param>+
+</init-params>+
+</serializer>+
+</acceptor-config>+
+<autostart>true</autostart>+
+</proxy-scheme>+
+</caching-schemes>+
+</cache-config>+
Thanks for your response,
Vipb

Was able to override the multicast address thru the command line and have just P1 work with
the following overrides.
-Dtangosol.coherence.clusteraddress=P1Cluster -Dtangosol.coherence.clusterport=11111
where p1Cluster=224.2.1.99 (say)
Thanks,
Vipin

Can a hosts be in the same subnet yet not be link local (trouble with Bonjour) ?

I'm trying to print through a D-Link DVA G3810 BN from the wireless side with a Macbook Pro to the wired side HP C6280 . Apparently mDNS (Bonjour} communicates with hosts that are link-local and on the same subnet ? Is there an assumption that hosts on the same subnet are link-local ? My testing suggests to me that connections from the wireless to the wired side of the D-Link are routed and the hosts are NOT link-local . It will only allow me to add hosts , regardless of being fixed or via DHCP , within the same address range and subnet . I found a statement that for hosts to be link-local , their communications cannot be routed (pass thru a router) . I can't see the HP printer in trying to set it up and always get the 'Network host is busy ; will retry in X seconds' state if I do configure it as an IP type . I can't figureout a way around this issue with the hardware that I have to work with .

Link-local addresses are usually the self assigned IP address that a device will set when a DHCP server cannot be found. These are the addresses with 169.254.x.x subnet.
If the router is assigning IP addresses for your network, then they will usually have a different IP subnet, possibly 192.168.0 for D-Link. And this subnet would be for the wired and wireless connections. So it would be more a case of bridging the two network topolgies rather than routing them.
The network host is busy message could be more to do with the driver and the IP protocol selected when creating the queue than the connection being broken between the Mac and printer. If you were to open Network Utility and select the Ping tab, enter the IP address of the HP and set the pings to 4, pressing the Ping button will soon show if there is a path through the wireless to the printer.
If you get a response to the ping you could then open Safari and type the ip address as the URL. This would then connect to the internal web page of the printer and possibly let you enable an IP protocol like LPR so that you can use LPD on the Mac instead of Bonjour to connect to the printer.
As for the driver, you could look at using a Gutenprint driver instead of the HP driver or the hpijs package to get past the limitations that some printer drivers have with network connections.

Two controllers on the same subnet

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