The subnet tag has no wiki summary.
0
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2answers
41 views
Default Route Configuration by IP Range
I have a scenario where I need responses on a certain range of addresses to go out through one default route and another to go out through another but don't know how to setup the route add commands to ...
-2
votes
3answers
74 views
Packets dropped due to NAT? Firewall? Unroutable private IP addresses?
Preliminary note
This question is out of academic interest. I know how to work around the limitation. I use this setup to control access from one subnet to the other on IP level which works great so I ...
-1
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0answers
59 views
Subnetting assignment [closed]
My double lies in the underlined address block.
In this case is it viable creating a subnetwork with R2,S2,V1,V2 in it OR just creating a R2,S2 one and V1 and V2 in separate ones by changing the ...
2
votes
1answer
39 views
tcpdump filter on network and subnet mask
I'm using the following tcpdump command:
tcpdump -w net75.out -s 0 host 65.207.95.222
I want to change the filter on the single host to be all addresses in the following subnet:
65.192.0.0/10
I ...
0
votes
1answer
60 views
Overcoming same private IP addresses, different subnets
I am preparing for migration to VMWare ESXi. Part of this involves P2V a large number of physical servers. Since a lot of our applications depend on the IP addresses to stay the same (i.e. they ...
0
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0answers
28 views
iPhone can't connect to internet on other subnet, but other computers can [migrated]
Here's my setup; I'm a router newb so I don't completely understand the intricacies of my configuration - but suffice it to say, I've set it up this way so that anyone who's connected to Router A ...
3
votes
4answers
198 views
OpenVPN performance terrible to other machines on server's subnet [closed]
I'm using a "server" that is a hacked-up first generation Apple TV running Linux.
I'm having a lot of trouble getting OpenVPN performance to be what I would expect with my new OpenVPN setup. The ...
3
votes
3answers
133 views
Building up a network structure
I have the following structure:
So in this case I have two different networks. What device can handle this structure, also PoE WiFi. In this case I have two measurement system attached in the PC B ...
0
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2answers
73 views
Restrict access to website in IIS to a range of IP addresses
I'm configuring a website in IIS6 to restrict access to a customer's IP address range.
I've been given their IP address (81.145.41.114) and an IP range (172.17) which I am meant to allow access to.
I ...
3
votes
1answer
108 views
Subnet Masking in IPv6
I know within IPv4 subnet masking, the network is determined by either the 1st, 2nd or 3rd set of octets. Being there are so many more characters in IPv6, how do you determine the subnet mask?
2
votes
1answer
66 views
setting up 2 subnets, Windows Clients (30 nodes), Linux Server, Samba, FOG
Its my first post on serverfault and my first time to setup this kind of network, so my apologies in advance if it is not well formed.
I'm planning a small (education center) network that has about ...
2
votes
2answers
121 views
One big subnet with all clients an issue?
Disclaimer: Network rookie, might have wrong assumptions.
Got a basic subnet question that im interested in hearing your thoughts about.
Subnet range for servers: 192.168.251.1 - 192.168.251.30 / 24
...
0
votes
1answer
68 views
VTP Domain on 2 Subnets
Let's say you have 2 different subnets (10.100.0.0/22 and 10.100.8.0/22) in one subnet. You've set up your own VTP domain. If I want to add the 2nd subnet in that same VTP domain, would there be any ...
2
votes
4answers
148 views
Best way of isolating VM's to protect network?
On our network (1.0/24) we have a number of servers. One of those servers is running VMware ESX with three virtual machines which are hosting various websites and applications to the outside world.
...
1
vote
2answers
132 views
/32 subnets on Ethernet via DHCP
Is it possible to assign to an ethernet host via DHCP a subnet mask of only the host itself, e.g. 192.168.1.123/32? Do common operating systems support this kind of configuration?
I'd like for the ...
1
vote
2answers
79 views
Subnetting IPv6 addresses/routes
I would like to subnet the default IPv6 route into 2 network routes. The original default route was:
default via fe80::218:74ff:fe27:9640 dev eth0 proto kernel metric 1024
I tried adding the ...
0
votes
2answers
57 views
What is the best IP/Subnet set up strategy for a multi-server webhosting setup?
Sorry for the mixed-up title, but let me try to explain better:
We run a hosting solution, which until now has supported shared hosting and VPSes. Easy enough.
We are now getting larger clients ...
0
votes
1answer
28 views
VPN tunnel, different subnet for all users?
We have a VPN setup for each of our three branches. I understand that each router should be on a different subnet to the router that it's connecting to, but do the routers need to be on a different ...
0
votes
2answers
122 views
Routing between subnets with one router?
I have a Draytek Vigor 2820 which is connected to three gigabit Netgear Layer 2 switches. Currently the network is fairly simple, 192.168.1.0/24.
One the network I have 7 servers, around 50 ...
0
votes
1answer
46 views
How many assignable addresses are needed for a router-to-router connection?
I have an address zone (let's say 150.41.0.0/16) and I want to subnet it optimally using VLSM. I have a number of VLANs, each with a minimum number of needed addresses, and a couple of ...
2
votes
3answers
302 views
How can I find my subnet mask?
The popular answer to the question " How does Subnetting Work? " does a nice job in explaining subnets.
I remember learning about the network classes back in CCNA class but that answer mentions ...
0
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2answers
73 views
Where do I learn about IP blocks and subnets? Or is there just a calculator that does it all for me? [closed]
Possible Duplicate:
How does Subnetting Work?
Amazon's elastic compute tool (among others) requires the ip block format for their command:
ec2-authorize websrv -P tcp -p 80 -s ...
0
votes
3answers
146 views
Are same IP address with different submask unique? [closed]
Possible Duplicate:
How does Subnetting Work?
In a same block of IPv4 addresses, can there be same IPs with different submasks?
For example, can I have this:
180.70.65.140/26
...
1
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3answers
114 views
5 IP Addresses on a multi-homed NIC, 4 ping-able, what's wrong with the 5th?
Dell Server, broadcom NIC, 5 IP addresses all on the same subnet. Let's say 100.100.63.67-71. Windows Server 2003.
From another system on the 100.100.63.* subnet, I can ping all IP addresses no ...
2
votes
1answer
30 views
SharePoint 2003 Site Can't be Seen Across Subnets
I apologize if this is a basic question. I've inherited a SharePoint 2003 server that has, apparently, always had this issue and I'm not all that familiar with the inner-workings of SharePoint.
Some ...
0
votes
1answer
48 views
How does this picture get broadcast address and the usable host addresses? [closed]
Possible Duplicate:
How does Subnetting Work?
I am not really sure how did this figure example get the broadcast address and the usable host addresses.
0
votes
3answers
145 views
Finding the first and last address of a block of IP addresses with subnet mask
I am not sure if this is the right place to make this question but I thought this is one of the most appropriate SE's site to make a question on networking. Please move it to other more appropriate ...
1
vote
4answers
103 views
How do I enable an interface to hand out IPs on a certain subnet on a Cisco switch?
I have telnet access to a Cisco switch, only I need to enable an interface so it can start handing out IPs on a certain subnet. What commands do I need to use to get to the interface config file or ...
2
votes
1answer
44 views
Recommissioning subnet, accommodating device with static IP address and unknown hostname in Windows network
My company recently bought an asset management appliance (a Dell Kace M300). The setup is supposed to be pretty painless; you essentially just attach an ethernet cable, power it on, and resolve a ...
3
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3answers
157 views
Subnetting Challenges
I am trying to plan out a network with the following requirements and am having problems trying to complete a subnet plan for my network.
The network consists of 3 routers that connect 3 different ...
0
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1answer
120 views
Enabling Samba Shares Across Subnets
I was curious how I could go about setting up SAMBA so that shares could be seen and used across different subnets. We have some Linux devices that are bound to Active Directory and we would like to ...
1
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2answers
127 views
Linux route to different subnet
Bit confused over how to handle a likely simple routing issue.
I VPN into my Cisco ASA on 10.1.x.x subnet. Now, I would like to not only interact with private 10.1.x.x, but also with dmz on ...
0
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2answers
225 views
VMware vSphere 5.0 - can't configure host on multiple subnets
Is there an easy way to allow a single vSphere 5.0 host communicate on multiple subnets and allow VMs hosted there to communicate on those subnets?
I've got a small farm of vSphere 5.0 that are ...
2
votes
1answer
106 views
ARP discovery on multiple subnets
I have an unmanaged switch which serves traffic belonging to different subnets. Lets say these are the subnets:
192.168.0.0/24
192.168.1.0/24
192.168.2.0/24
And few more subnets which I am not aware ...
2
votes
1answer
134 views
How can I get connected to a network printer in a different subnet with Windows 7 Professional?
So we have a mixed node set on our network with Win XP Pro, Win 7 Pro, Ubuntu 11.04, Win 2k3 Server Std, etc all within in an Active Directory Environment. We also have network printers that are ...
0
votes
1answer
38 views
RRAS VPN Issues - Windows Server 2008 R2
I'm trying to setup a VPN on a new Windows Server 2008 R2 box that is running Hyper-V.
I have setup the VPN using the RRAS and can connect to this VPN from my PC - however I can't access any ...
1
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1answer
65 views
Openvpn: iroute for all theoretically reachable [public] IPs
I am testing the creation of an enforced default route of only public IPv4 space via OpenVPN. OpenVPN does not support 'iroute 0.0.0.0 0.0.0.0' out of the box, because it contains code that rejects ...
4
votes
4answers
198 views
Maximum Number of Hosts per Network
I recall reading this in some (I think) Cisco documentation years ago, but can't find it or any other reference to this recommendation.
Anyone know what I'm talking about? Anyone still follow these ...
2
votes
1answer
96 views
Issues changing netmask from /24 to /22 on local network
We currently have a network, 192.168.1.0/24. We are close to being out of numbers.
If we change the netmask on our servers to /22 (255.255.252.0) all equipment (hosts) with 192.168.1.xx/24 will still ...
-1
votes
3answers
195 views
Windows 2008 R2 DHCP for two scope on two interfaces
I'm setting up a brand new DHCP Server over Windows 2008 R2 Standard edition server, and I'm planning to serv two differents lan with this one.
Here is my configuration:
1 AD/DNS/DHCP Server with ...
0
votes
1answer
83 views
How to change my domain from 192.168.1.0/24 to 192.168.21.0/24
We are about to start using hosting service for the software we use and they've asked us to change it.
I'm sure I can figure out how to change the DHCP scope, but that's not what I'm worried about.
...
0
votes
3answers
321 views
Advice for configuring a SonicWALL NSA 2400 to use two subnets and L2 Bridge Mode
This post is not an exact duplicate of How to configure remote access to multiple subnets behind a SonicWALL NSA 2400 . However, I am having this problem, almost verbatim. Unfortunately, we even have ...
0
votes
2answers
173 views
How to join 2 different subnets in one domain
I have a DC win 2008 with ip 10.0.2.x. I also have another group ( workgroup) of pc's in a remote site with ip 10.0.1.x. The two sites are connected via vpn with zyxel routers. I would like to know ...
-4
votes
1answer
72 views
Problem regarding sub-netting and sub-net mask [closed]
Possible Duplicate:
How does Subnetting Work?
An organization is allocated the IP block of 172.16.0.0/16. It has a head office and three branches each of which can have 500 to 4000 hosts. ...
1
vote
6answers
404 views
Find device with static IP on different subnet
I bought an used Lantronix Spider and I cant seem to see it on my network (from my routers dhcp table). So my idea is that the device is not configured to use DHCP and assigned a static IP instead ... ...
1
vote
2answers
113 views
How to find the subnet for a single IP?
I have always used the subnet tools on the web when our datacenters provide us with new ip blocks for our machines. However, I recently ordered more IPs from our European DC and they apparently just ...
9
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3answers
225 views
Creative IP/subnet/dns schemes
I've only administered rather small networks (<=25 nodes). Usually I put the gateway .1, dns/proxy as .10, mail at .20, printers at .30-39 and so on and so forth. I never directly use IP addresses ...
0
votes
1answer
42 views
Subnetting help and confusion [closed]
Possible Duplicate:
How does Subnetting Work?
I am a bit confused, I have been given an address 132.132.0.0/16 and i have to devise a scheme allowing for at least 396 subnets. I think i ...
0
votes
1answer
253 views
How to change Hyper-V VM network settings via WMI?
I am not sure where to post this question whether at programmers.stackoverflow.com or here. So please forgive this if i am at the wrong place.
My question is:
How to set Subnet Mask , DNS address ...
0
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3answers
207 views
Ubuntu 10.04: Two interfaces on a same subnet with a same gateway
My ISP has given me a 187.x.x.224/29 subnet. The gateway is 187.x.x.225 I have a Ubuntu server with 6 ethernet ports. The server does NAT routing and also acts as a webserver. My plan is to have eth1 ...
