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.

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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!

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Greetings all!
I've been using Macs and OSX for a year. And recently I bought another MBP so I am seriously considering Time Machine backups. I have a Linux home server running Ubuntu 12.04 and Samba and my previous MBP running Mountain Lion connects to it happily without any problem. But my trouble started when I tried to setup afp on the same box.
I followed this post and this post and got the fake time capsule showing in Time Machine without any problem. But soon I found myself unable to connect to the old samba shares. The smb host now displays as a Time Capsule. If I click on that OSX will say 'failed to connect'.
As I understand there are 2 pieces involved on the server side, avahi to broadcast the service info and netatalk to provide the service itself. It's a bit like nmbd and smbd in Samba. If this is true then it's somewhat understandable that OSX can not display the same host as 2 different types of services at the same time. So I stopped avahi-daemon and very soon the old Samba shares appeared again.
I am able to connect to both services using command+k but I would rather have them running normally so that my wife will be able to use them without extra tech support. Can anyone tell me if what I said above is true and/or if there is a graceful way around this? If answer is no then I will have to create a virtual machine or nic alias just for time machine and I think it's quite a waste.
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tristonej wrote:
I don't quite understand why people buying non-Apple devices should not expect OSX to work with them
Because Apple has no control over 3rd parties. They can do what they want. If Apple publishes a new authentication mechanism in 2002, the 3rd party doesn't have to implement it. That isn't Apple's fault. If they do get around to supporting it in 2009 and then some 4th party doesn't bother to use the 2009 code in 2011, Apple still can't do anything about that. If anyone else wants to advertise, and support, Time Machine compatibility, they are welcome to do that. They definitely have the advertising part down, the support, not so much.
There is a time when apple only worked with apple but that aparently was not sustainable. And that's why now Apple is embracing smb
Apple's goal is to choose the best solution for its customers. Sometimes that is a proprietary connection or protocol and sometimes it is something industry standard. In all cases, there has to be some cut off for testing and support. That is why Apple eventually stops supporting its own hardware and technologies at a certain point. That is also why Apple will support SMB as deployed by Microsoft but isn't going to waste much time on home-built Linux servers.
(it's said even samba was used shortly on OSX, not quite sure) and allow users to install windows on macs. Even OSX itselt is based on FreeBSD and uses quite a lot of open source components.
Apple uses a lot of open source software. Samba was one of those projects. Unfortunately, the people that made those products didn't want Apple using them so they changed the licensing to prohibit Apple (and pretty much only Apple) from using their source code. That is why some of the open source packages in OS X are stuck in a 2007 version. That is also why Apple abandonned Samba and wrote its own SMB implementation.
OS X is not based on FreeBSD. It has a BSD-flavoured POSIX layer, but it is a distinct operating system at its core.
IMHO there is no magic in throwing money at propiretary hardware/software or praying to Steve Jobs. If something is not working, it must be that there is a bug in the code or the design. And neither OSX nor Macs are built by God, which means they are bugged as other software/hardware.
I'm confused. When did anyone say anything about praying to Steve Jobs or divine technology? You asked about using Linux as a Time Machine server. I suggested you avoid that if you value your data. I also asked why you would want to keep running Linux now that you have a Mac. A Mac can do anything Linux can do with a fraction of the effort.
The answer is simple, Macs can not do what I want.
Which is?
Withe a standard mATX case I can have quite a few 3.5" drive bays while there is only one 2.5" in a Mac mini. And with Ubuntu/Debian, getting/updating the software or the system is quite easy, just one or a few lines of apt commands, not quite possible with OSX.
That's certainly true. OS X updates itself without having to run any apt commands.
If you must compile something from the source to get a Linux running then something must be seriously wrong.
My thoughts exactly. But perhaps you didn't follow me entirely. Apt, yum, etc don't have everything one needs to setup something as fancy as, I don't know, a web server. While I did have to compile a number of things from source, I had to actually edit the source a couple of times as well.
The best thing I love about Linux is openess. You can customize almost everything and change it whatever way you want. With Mac, for example the 2013 Retina MBP I just bought, it's not even possible to change the power button behavior, which is very annoying.
Then why did you buy a Mac? That's no big secret. Some people like not have to configure everything just to get it running. I have other things to do than edit config files.
Back to my original question. I think the problem is not quite with compatibility of Bonjor but rather whether OSX can show this or not. Imagine you have a smb share and afp share on the same host, with the same name, how would OSX display it? And which icon will OSX use to display the host? I can not think of the answer so if you know please tell me.
OS X will just display it like it display any server. One of your links event has instructions on how to pick the icon you want to fake. If you are running both services then I am not sure which one it would try to connect with. Neither of your services are native, not matter how much they try to fake it. If you wanted a specific service you would have to manually use the correct protocol in Finder > Go > Connect to Server. However, bot of those links were posted before Mavericks. Obviously they don't work anymore. It's Linux. It's open. Right? So fix it and post it on your own blog. I do not know what modifications you would have to make to either Samba or Netatalk to make them work with Mavericks.
If all you need is to allow your wife to connect to one specific protocol, then manually connect to that service, saving your password in the keychain, and create an alias by Command-option dragging the server to some other folder. Then, she can just double-click on the alias to connect to the network.
Now, if you really want to be clever, you can setup an automount to that service instead. Then the server will be mounted and unmounted as needed.

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

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