Connect Host To Switch In Different Subnets?
Jul 28, 2012How is it possible to connect a host to a switch when they're in different subnets? I'm new to Networking and was thinking it may be achievable through VLAN configuration?
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How Many Bits Must Be Reallocated From Host ID To Network To Create 16 Subnets
Jun 30, 2012How many bits must be reallocated from host ID to network ID to create 16 subnets?( i did read the discussion on another page and still no clue). For the Class C network address 192.168.10.0 , which of the following subnet masks provides 32 subnets? How many host bits are necessary to assign addresses to 62 hosts ??
View 4 Replies View Related2 Subnets + Both Legs Of Router On Same L3 Switch?
Sep 6, 2011This might be ridiculously bad for security but I'll ask anyway. Is it ok to have two routers on the same subnet? One router/firewall will do NAT for hosts that don't need a real IP/or care to manage their own firewall and the outward facing router.
View 2 Replies View RelatedCisco :: Connecting 3 Subnets On 1 Switch?
Mar 31, 2012I have 1 Cisco switch 24 ports and 12 computers. The 12 computers are divided in three groups and every group is a different network segment.
question 1: I need that every group has communication with its own set of computers but no communication with the computers on the other segments.If I connect the computers to any port on the switch, can they communicate within its own groups? Can the switch pass the network traffic for all of them?
question 2; What I need to do on the switch to have them to reach the internet?
Determine If A Switch Is Between A Host And A Target?
Nov 23, 2011I was attempting to troubleshoot a logon problem with some machines, when it was finally revealed that there was a managed switch between the host and the target preventing this.
How would I detect this in the future? (A tracert showed nothing between host and target.) Would Wireshark show me this info, with reduced TTLs?
getting a picture of all devices between a host and a target?
How To Connect Two Subnets
Mar 26, 2013I have 2 DSL Lines going into a load balancing router. The load balancer is set up to distribute the traffic equally on the two lines, hence doubling the bandwidth. Though great at load balancing, it cannot handle DHCP for the 50+ users on our network, and therefore we are using another router for DHCP, which is running DD-WRT firmware.DSL 1 - 10.1.0.1DSL 2 - 10.2.0.1Load Balancer - external 10.1.0.2, 10.2.0.2 internal 192.168.10.1. DHCP Router - external 192.168.10.2, internal 192.168.1.1All other devices - 192.168.1.xThe load balancer has many options to direct traffic to one WAN port or the other based on IP address, which we would like to implement. But right now, since all my devices are on the 192.168.1.x subnet, it can't see anything but the DHCP router. So essentially it thinks it has only one client.
View 1 Replies View RelatedCisco Firewall :: ASA 8.4 / NAT Some Subnets To One IP And Other Subnets To Another IP?
Aug 15, 2012I need to NAT some subnets to one IP and other subnets to another IP. The range command want work because some of the subnets are out of order.For example subnets 192.168.1.0 - 192.168.7.0 and 192.168.25.0, 192.168.28.0 nat'd to 1.1.1.1. subnet 192.168.26.0-192.168.27.0 nat'd to 1.1.1.2
View 2 Replies View RelatedCisco WAN :: Maipu 800 / How To Connect 2 Sites With Different Subnets
May 27, 2013I have problem of Site to Site connectivity I have 2 sites (Site 1' public ip. 115.119.120.X, local ips are 192.168.1.0, & Site 2' public ip 115.119.187.X, local ips are 192.168.2.0)Both sires are having different locations & using routers are Maipu 800.At present both sites are running with internet (each router are configured for DHCP, NATING & DNS for intenet)guide my with complete config, both local systems has to communicate...My preperance is existing routers & If it is nessary to change the routers, what will be the config.
View 1 Replies View RelatedCisco AAA / Identity / Nac :: Webauth Url Redirection Fail With Firewall Between Host And Switch
Feb 27, 2013Web auth redirect URL gets dropped if stateful firewall is between webauth host and switch management interface. Aaron at Cisco live london kinda hinted about maybe Cisco working on this ? We can't disable stateful inspection. Is there any other solutions or workarounds ?
"Although this approach introduces additional hops in the return path from the switch to the host, it produces negligible load on the default router and intervening infrastructure since only the WebAuth traffic from the switch to the host follows this path. In campus designs that do not use SVIs on the data VLAN,6 a default route is typically already configured. In this case, no additional configuration is required to support WebAuth.
However, problems may arise in the case in which traffic to the default router is bridged through a stateful firewall. The original SYN packet in the TCP handshake is consumed by the access switch, so the first packet that the firewall sees is the SYN-ACK packet from the access switch. Stateful firewalls typically drop SYN-ACK packets if they have not seen the original SYN packet.In this case, you will need to turn off stateful inspection for ports 80 and 443 on the firewall."
Cisco WAN :: C3750 - Mirror Switch Port Traffic To Remote Host IP Address?
May 31, 2013Is there any way to Mirror a CISCO C3750 Switch Port Taffic to a remote Host IP Address?I know Port Mirror (SPAN/RSPAN) can copy one Interface Packet to another Interface. But I am looking for a way to miror Switch Port Packets to a remote Host (having Public IP Address and running Wirehark). Is it possible?
View 9 Replies View RelatedCisco VPN :: 5520 Cannot Connect Remote Subnets Via ASA To Draytek Router VPN
Jun 19, 2011my local site has Cisco 2811 router connecting locally to ASA 5520. Remote site A has Draytek Vigor2950. I have working vpn between local subnet 10.0.0.0/24 and remote site A 10.100.6.0/24. I have remote sites B (10.100.7.0/24) and C (10.100.8.0/24). I would like to route traffic from local site to remote sites B and C via the local-to-remote A vpn. On Draytek routers B and C, I have added to subnet 10.0.0.0/24 to the remote network profile list. On local router, I route traffic for subnets 10.100.7.x and 10.100.8.x to the ASA. On ASA I have added these subnets to the profile for local-to-remoteA vpn.But the vpn will not establish when I attempt to ping from local to remote B or C.
View 5 Replies View RelatedCould Not Connect To Host?
Mar 24, 2011What are the most common cause for a "could not connect to host" problem?The firewall is not blocking anything, and even with the firewall disabled, the problem still occurs. With "Server" service turned on, the problem still happens.Windows xplso the server couldn't find any trace of a connection attempt, so my attempts to connect never actually made it to the server.
View 5 Replies View RelatedCan Pure IPv6 Host Ping A IPv4 Host?
Feb 10, 2011I'm just wondering if its possible to ping an IPv4 host using the IPv6 host assuming that the NAT64 has already been implemented?
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Cisco VPN :: Pix 515e - Remote Host Cannot Ping Any LAN Host
Jun 27, 2011I have a host that can successfully connect to a PIX 515E (7.x OS) via VPN Client; however, I have no IP routing to the LAN from the remote host.The VPN IP pool works finem,The LAN default gateway is the inside interface on the PIX; the network is flat L2 behind it.The default route on the PIX points out; no other routes are defined,The VPN remote host can be pinged from LAN hosts, but the VPN remote host cannot ping any LAN host, not even the PIX inside interface.
View 2 Replies View RelatedCisco VPN :: ASA 5510 Ping / Communication Host To Host
May 7, 2012ASA 5510
Ver 8.2(5)
I have been looking all over the place for the answer of how to allow clients on an IPSEC VPN to ping from host to host.
Connect From Host To Guest?
Apr 28, 2012My host has an IP of 20.168.1.2 from a router DHCP. I have a virtual environment which has a DC and DNS and the IP is: 192.168.1.x how can I get access from my host to the virtual environment? What do I need to setup on the host OS? (Windows)
View 3 Replies View RelatedCisco :: ACL - Allowing Only One Host To Connect To Internet?
Jul 15, 2012I've got an 1841 router acting as the firewall for a LAN. It also does NAT and acts as the dialer for a PPPoE DSL line to the internet.
All is working fine, except now I need to allow a Tivo device to connect to certain ports on the Tivo servers on the internet. I want only the Tivo to be able to do this. The problem is that NAT is happening before my outbound ACL is checked, so even though I've got rules to allow the Tivo's LAN address out on all ports, it never works. I've verified this using a syslog server, and can see my external DSL IP trying to connect to the Tivo servers and being denied.
I've done things like this at work by NATting the appropriate internal host to its own external static IP address, which allows me to write rules allowing only that external address to do stuff. But I don't have multiple external addresses to work with here.
I tried applying my outbound ACL to the LAN interface of the router in the "in" direction (and removing the same ACL from the Dialer interface in the "out" direction), but that broke other things like the router's own ability to ping out to the LAN or to see a TFTP server on the LAN. I could maybe fix all of that with rule changes and inspect statements on traffic going out toward the LAN (not sure of this, think so), but I'm wondering:
Is there a better way to let just the Tivo makes outgoing connections to certain ports?
Config pasted below:
!
! Last configuration change at 17:15:10 CDT Sun Jul 15 2012
! NVRAM config last updated at 16:27:14 CDT Sun Jul 15 2012 by someguy
!
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Destination Host Unreachable - Can't Connect To Internet
May 11, 2012My internet connection started to disconnect after an office mate used my PC. I thought it was just the cables but it's not. I pinged my ip address and its okay (sent=4; received=4). But when i ping Yahoo! and other websites, it said that "Destination host unreachable" (sent=4;received=0;lost=4;100% loss). What should I do to make my connection okay? I didn't ask assistance from our IT personnel bcoz they said if i want to reconnect/reinstall connection, I have to get an approved request from our bosses. And I don't like being asked bcoz they are like tyrant bosses.
View 2 Replies View RelatedCan't Ping / Connect Ipv6 Host On Windows 7 Vs XP
Apr 27, 2011When I try to ping ipv6.xsnews.nl on either of my Windows 7 computers, it returns "Ping request could not find host". But when I do it on XP, it succeeds. I have tried putting the W7 PC in the DMZ, disabling the software firewall but it doesn't work.
What I think it involves is having ipv6 installed on each. I tried to duplicate the setup of both the XP and a W7 computer, installing the gogo6 tunnel. But apparently it's not setup on this computer because the ping result is the same as on the third computer which hasn't had ipv6 installed. s not setup on this computer because the ping result is the same as on the third computer which hasn
Vista Host Computer Freezes / When Trying To Connect To Printer From Another PC
May 2, 2011Small office setup with a wireless modem/router. We have two computers that are identical HP Pavilion a6807c PCs running Vista Home Premium. Other computers in the office are a bit older and run either XP or Vista.Just purchased a new HP Officejet 7000 printer and connected it via a USB to one of the HP Pavilion Vista computers (which I will refer to as HP1). The printer works fine on HP1 using the direct USB connection.Set printer sharing, file sharing, and even public sharing on both HP computers (HP1 and the other one I will refer to as HP2). Workgroup name is the same. Can access HP1 and see the HP printer on HP1 from other computers in the office. However, when I try to connect to the printer from HP2 to HP1, it locks up HP1 and HP1 requires a hard reset. I tried installing the software/drivers on HP2, but HP2 still tries to install the drivers from HP1.I am not sure its a problem with HP1 as much as it is a Vista issue. The reason I say this is because I have been able to successfully use an XP computer (XP3) to connect and print to the Officejet on HP1.
View 1 Replies View RelatedCisco Firewall :: ASA5510 / IPS SSM Could Not Connect To SMTP Host
Sep 3, 2011We have an ASA5510 with the IPS ASA-SSM-10 module installed. All is working well except event notification. When sending a test email from the SSM IPS, we get the error "could not connect to SMTP host". The Exchange SMTP host does allow traffic from the IPS and ASA. I can ping to the SMTP host by IP and name. What am I missing here?
View 3 Replies View RelatedCisco VPN :: 5505 / Remote Access VPN Allowing Only Since Host To Connect?
Jun 12, 2011I have created a RA VPN with a 5505 using Anyconnect client. My VPN functions perfectly, but now I am trying to limit access so that only one single host on my network can connect. To do this I tried creating an ACL permiting the host and denying all other traffic, but it does not work it seems every one can connect. how I can limit the outside access to a single host?
View 3 Replies View RelatedRouters / Switches :: Connect 2 Subnets With Two Switches And One Router Using SIM Software?
Apr 23, 2011how to connect two subnets with two switches and one router using router sim software?
View 1 Replies View RelatedCisco Firewall :: ASA 8.4 - Connection Fails When Host On Inside Tries To Connect To Server On Outside
Mar 9, 2011We are using an ASA with 8.4 in transparent mode. Connection fails when a host on inside tries to connect to a server on outside. This server uses mac-address 0100.5E00.0000 to load balance but replies with real mac-address.Firewall logs "Deny TCP".ARP inspection is disabled.
View 2 Replies View RelatedWindows 7 - Connect Virtual Machine To Host Via IEEE1394 / USB Or Serial Port
May 15, 2013I have a host machine (Laptop, Win 7 Home Premium x64) running Windows 7 Ultimate x64 on VMWare Workstation 9. I've got this system set up for UMDF driver development, because I need a target machine to debug drivers on. However, because I'm developing drivers for Win 7 (x86 and x64), I cannot connect to the virtual machine on via a simple network connection. Connection methods are outlined here.
I have tried a few different pieces of software (mostly Eltima software), and have Google'd every combination of phrases that I can think of. I can't find any information on this anywhere. I don't just need to share data between the machines, I need a more "physical" connection.
Does any know how to do this, or if there's another (preferably more simple) way of doing it?
Belkin Routers :: LG840g Receive Failure To Connect To Requested Host Message / When Open Browser
Jan 17, 2013The Lg840g is a tracfone with wifi capability. I get strong wifi signal and connection at home, but receive failure to connect to requested host message when I open the browser. This phone works at wayport wifi, so I assume it's a compatibility problem with the router. Is there a fix? (Router works great with our Acer and Kindle tablets though.)
View 1 Replies View RelatedServers :: Switch / Hub Sufficient To Connect All PC's To Modem To Connect To Internet?
Apr 12, 2011I am in the process of opening an internet cafe. I dont know exactly what a pc server does on the network... or do I really need one? Is the switch/hub sufficent to connect all pcs to the moderm to connect to the internet?
View 1 Replies View RelatedConnection Between Two Subnets
Apr 12, 2012I have a home network. There are a total of 3 PCs. Each runs Server 2008 32 bit. One PC - Lets say Server A has 2 NICs with Ip addresses, 10.0.0.10/30, 10.0.0.2/30. Other two computers Server B and Server C have single NIC with addresses 10.0.0.1/30 and 10.0.0.9/30 resp. So as you can see that there are two subnets 10.0.0.2 - 1 and 10.0.0.9 - 10. I can ping B and C from A. I want that B and C can also ping each other and if I run tracert on B or C, it should give me the route to the destination via A. All this without any other hardware. Like using route add... etc eg. if I write tracert 10.0.0.9 on B, it should return a route like 10.0.0.1-----10.0.0.10------10.0.0.9.
View 3 Replies View RelatedTwo Subnets Across Same Link
Aug 24, 2012I have two subnets, that need to share a common link, and each with its gateway at the opposite end. What kind of switch do I need for the two red boxes?
View 7 Replies View RelatedSame MAC Addresses In Different Subnets?
Nov 20, 2012I have an exercise with picture you find below. The question is: Will the network shown in the diagram work correctly when you consider that the MAC-addresses PC0 and PC8 are the same, and why?
View 1 Replies View RelatedSplit Network Into 3 Subnets?
Oct 9, 2012I need to split a network: 10.0.4.0/24 into 3 subnets with the following hosts per subnet:
Subnet 1: 80 hosts
Subnet 2: 10 hosts
Subnet 3: 120 hosts
split into 3 subnets?
Im thinking something like this:
Subnet 1
Network 10.0.4.0
Subnet Mask 255.255.255.128
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How To Find Out Range Of Subnets For Given IP
Jul 7, 2011if some gave me an IP address and subnet mask, and they told me to identify the range of valid subnets I have no clue how to do it. I know how to work out the total number of subnets and hosts, you just look at how many subnet bits have been borrowed and use the 2^ formula. For example with the IP 172.28.123.0/25 I know the default mask for a classs B address is 255.255.0.0/16 so in this example we have borrowed 9 subnet bits to give mask of 255.255.255.128/25 and 7 host bits remain. In order to find the total number of subnets you do, 2 to the power of 9 because we borrowed 9 bits, which tells us that there's 512 subnets and to find out how many hosts we do, 2 to the power of 7 because we have 7 host bits, so that gives us 128 hosts in each subnet. Now this is where I get lost, how do I find out the number of the first and last subnet? I know there's 512 subnets and each subnet has 128 hosts. But I don't know the number of each subnet, the range to be more precise. How do I workout the first, second, third, fourth etc subnet address
View 3 Replies View RelatedConnecting Two Subnets At Layer 2
Jul 2, 2012I have :
- two different subnets (S1, S2)
- these subnets are connected to an IP backbone via wirelles acces points
I would like to physically connect these subnets together so the networks devices in S1 could directly communicate with the devices in S2 and vice versa without going through the backbone.
The obvious solution seems to interconnect these subnets with a router or a switch L3. But I would like to connect these subnets and stay at layer 2.
So, is it possible to connect S1 and S2 with a switch L2 ? If I do that, what is going to happen? Can I create just one subnet S3 from this two subnets when I connect them together and have my two separate subnets back as soon as I disconnect them?