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2answers
374 views

Avoiding a multi-homed Domain Controller in a dual network environment

I'm trying to take over an old infrastructure and clean it up, but I'm running into some issues deciding on the new architecture. We have a set of around a dozen or two test/production servers in a ...
1
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1answer
65 views

Trying to setup Multi-Homing under Ubuntu12 but can only get 1 of 2 IP to accept requests

I am having an issue on some new servers that we are creating under Ubuntu 12 in a virtual box running under VMware(VSphere I believe). This is at an ISP not my desktop. I think that we have the same ...
1
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1answer
778 views

Citrix Receiver hangs at “Please wait for the Local Session Manager” and published application fails to launch

When a user tries to connect to a Citrix XenApp 6.0 published application on a Windows 2008 R2 server, Citrix Receiver hangs at "Please wait for the Local Session Manager..." Eventually it times out ...
7
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2answers
489 views

BGP Multi-Homed Cisco Routers Configure For Resilience But Separate Inbound Weight

I've got 2 Cisco routers, each with a single Internet feed, providing BGP with default route only, which allows us to advertise certain routes out each feed. We're not using the full DFZ because ...
3
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2answers
61 views

Transparent proxy cache on BGP multihome

Provider A have transparent caching with squid . In the situation which a client has multihome BGP with provider A and provider B then client does not send its outgoing traffic (upload) to provider ...
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1answer
192 views

Can't reach multi-homed Ubuntu from different subnet

I have a multi-homed Ubuntu 12.04 server. I have two network interfaces connected to two different IP ranges. 2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen ...
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1answer
129 views

Multi-homed forward zone DDNS updates always sent out the same network interface

I have a multi-homed server 'dhcp1' with network interfaces '192.168.10.151' (eth0) and '192.168.0.151' (eth1). The machine is attempting to use DDNS with a name server 'ns1' having network interfaces ...
0
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1answer
48 views

Dual Homed to speed communication between two servers

I have to RHEL 6.4 servers that each have 1000 Mbps Full Duplex NIC Cards. However, the switch between them is only 100 Mbps. Is there any downside to setting both servers up as dual-homed and use a ...
0
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2answers
264 views

iptables and CONNMARK on ubuntu 12.04

I have Ubuntu 12.04 on a multi-homed host. I am trying to use iptables to reroute HTTP packets coming in to a certain IP address to another IP address. From Googling, I believe it is necessary on ...
1
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1answer
201 views

DHCP clients: Where is the hostname going to come from

We are building a private cloud here, VMs have at least 2 NICs, sometimes 3 or 4, each may be statically configured for IPv4 and/or IPv6 or be configured by DHCP or a combo of the two. Yes it's a ...
1
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1answer
735 views

Postfix: “hostname x does not resolve to address y” warning even though it does

Postfix log shows lots of these: warning: hostname client.lab.lan does not resolve to address 192.168.1.153 Yet a DNS lookup from the server shows that it does resolve: # nslookup client.lab.lan ...
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2answers
160 views

Simple Multihomed Linux Server Issue

I have a Linux server running CentOS 6.4 that is used as an iSCSI target. The server is multi-homed with two NICs, both on the same subnet. iSCSI multipathing takes care of the ...
0
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0answers
149 views

Multihoming, NAT and ICMP

My router is the default gateway of a LAN and is multihomed. ISP2 is used for HTTP, HTTPS and ISP1, the default gateway of the default routing table, for the rest of the traffic. Similar questions ...
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4answers
242 views

DNS answer based on IP address

I'm running a Windows Server 2003 as a DNS server. I'd like to set up a DNS zone so that the given answer is different depending of the requester's IP address. Let's say I have the zone example.com. ...
1
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3answers
185 views

Send TCP/IP packets down three routes and pick fastest

Does there exist a way to split TCP/IP traffic across three routes and have the first packets to reach the destination be used? I'm imagining something like multi-homing but with the requirement that ...
0
votes
2answers
125 views

Windows 2008 server multihome issue

I have moved from Windows 2003 server to Windows 2008 and have some issues related to IIS or networking I would rather say. I have two NIC's in the server. One is with a fast IP address given by the ...
0
votes
2answers
66 views

different name and different IP on a single m/c

I am just a beginner in ip domain etc..I had two questions: if I have configuration on "same" Machine(win or lin) in host file like: m/c name : IP(Example) mac1.net.com 10.124.77.10 and ...
0
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1answer
548 views

Multihomed Server or What?

The first thing i need say is english isnt my native language so i hope u guys can understand me. I`m willing start host an website and mail services on my home, the problem is i dont have many ...
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2answers
1k views

Using DHCP with Multi-Homed NICs

I am trying to steer away from our current manual addressing system and embrace the decades-old wonder of DHCP. In our domain and even at my home network DHCP is great - I can use address reservations ...
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2answers
2k views

Desktop has two IP addresses, server has decided to refer to it using the wrong one. How do I fix this?

I have a Windows 7 desktop machine, having a static 192.168.*.* IP address on a network full of things with such addresses. I recently received a piece of hardware that I need that machine to talk to ...
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votes
3answers
2k views

How to control source IP addresses from a multihomed server?

My Windows Server 2008 server has several IP addresses bound to it's network card. How do I configure it so that connections originating from certain programs, on certain ports, or to specific ...
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1answer
1k views

Multihomed multi-router setup with Quagga BGP

I'm doing some labs with Quagga on Ubuntu 10.04 LTS as a BGP router in a multihomed and multi router setup. Currently I have setup a fake "ISP" router in my lab and have my two Quagga routers behind ...
2
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1answer
2k views

How to configure Windows Firewall to protect the external interface but not the internal one?

Windows Server 2008 R2 SP1, running the Edge role of Lync Server 2010. One internal network interface connected to the company LAN, configured with a private IP address, subnet mask, internal DNS ...
0
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1answer
130 views

Configuring Cisco DHCP Server Multi-Homed Static Leases

I have a network managed by a Cisco router with DHCP. The network is used by some embedded software developers who use kit with fixed IP addresses. We'd like to configure their machines to use DHCP, ...
0
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2answers
1k views

Multihomed ubuntu inbound connectivity issue

I have a multi-homed system (Ubuntu server, 11.04) where eth0 is lan and eth1 is wan. There is internet connectivity through both, but via different routes. When the system boots, I cannot connect to ...
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3answers
147 views

Multihomed email

Our primary MX record points to an external server which handles spam filtering, thereafter the mail is pushed to our internal mail server. The mail is never stored on the external server for longer ...
1
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1answer
210 views

OptiQroute does not favor weighted WAN connection

I have an interesting problem: Our load balancer (a FiberLogic OptiQroute 2140) seems to consistently favor one WAN connection over another (and not one I want it to). We have two WAN connections ...
4
votes
2answers
286 views

Is MySQL Cluster appropriate for a small, low-volume multi-homed system?

I'd like to multi-home a proprietary web-based application for a relatively small user base with modest dataset size. Scalability is not as much of a concern as extremely high availability. The ...
1
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3answers
287 views

Cisco BGP question about advertising routes

I have the following config and understand what's happening pretty well with everything except the routes I'm advertising. In other words it's INBOUND traffic I have a question about. What I 'want' to ...
0
votes
1answer
870 views

Can I use BIND to provide DNS resolution for two isolated networks via a dual-homed DNS server?

I am setting up two small isolated networks. Neither of these networks will have an Internet connection. I am trying to provide DNS and DHCP to both networks via a single Ubuntu server I have ...
0
votes
3answers
198 views

multihomed router for small business

Okay, I have 5 external IP addresses. I need to figure out how to all those IPs to point to a set of particular machines behind my firewall. 3 are going to one machine. My router only appears to ...
1
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1answer
419 views

How to configure machines in a public subnet with two gateways?

We have a single public /24 subnet, with a BGP router as the primary gateway. Now I'm interested in configuring a second router for redundancy. How do I deal with multiple gateways on the servers in ...
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2answers
1k views

Issues resolving DNS entries for multi-homed servers

This is difficult to explain, so bear with me. We have 2 domain controllers, each multi-homed to straddle 2 internal subnets, (subnet A and subnet B) and provide dns, dhcp, and ldap authentication. ...
0
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2answers
794 views

Multi-homed machine with DHCP on isolated network

I'm trying to use DHCP to configure several machines with two NICs. Each machine is multi-homed through one NIC to a network containing the DHCP server. The second NIC is connected to an isolated ...
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9answers
12k views

Best solution for Multi-WAN failover (inside & out)? [closed]

Looking for a way to setup 2 ISPs in failover mode, for both incoming & outgoing traffic, for our small (<100 devices) network. The leading contender for now seems to be the Peplink Balance ...
0
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2answers
2k views

Multihomed Clustered Windows Server 2008 Network Connectivity Problems After Failover

We have a shinny new multihomed Windows Server 2008 (64 bit) cluster exibiting some strange behavior. The problem: Everything works perfectly until we failover one of the cluster groups Prior to ...
13
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1answer
3k views

Change TeamCity IP address and port number on multi-homed Windows Server 2008 running IIS 7

After two full days of "research" (read: banging my head against my keyboard) and cursing at TeamCity/MSDN/Tomcat documentation as well as phantom IIS bindings, I've come up with an answer to a very ...
1
vote
2answers
348 views

Exchange and routing of messages

I have Exchange 2007 installed on a W2k8 box with two NICs. How can I tell Exchange to route all outgoing SMTP traffic out via a specific NIC? Edit: Can I do it via the W2k8 firewall/routing?
3
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4answers
4k views

How serious is a problem is multi-homed networks?

Multi-homed is the term that I have heard for being connected to a LAN at the same time as being connected to the internet via something like a wireless connection. I have heard that this is so ...
3
votes
3answers
3k views

Configuring multi-homed Windows Vista/2008 machine to ignore default gateway and DNS server settings on one adapter?

I've got a Windows 2008 machine with two network adapters in it. One's connected to the corporate network, and the other's connected to a private (lab) network. They're both configured by DHCP. They ...