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It will send it only once to the group, but it will send it at the multicast rate, which is generally the lowest rate allowed on the network, so that even clients at the extreme edges of the network can receive them reliably. You see, multicasts don't get Ack'ed at the 802.11 layer, so they don't get 802.11-layer retransmission, so to make sure distant ...


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route a certain IP address to my default gateway This is what the above means: You are telling your TCP/IP stack that the "certain IP address" is reachable via your default gateway. So your TCP/IP stack, used by all applications on your system, will send ANY traffic with that destination IP address to your default gateway. Routing rules do not have ...


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The HOSTS file and route command functions are different from each other and one cannot be used to accomplish what the other does. The HOSTS file lets you map a specific host name such as www.google.com to a specific IP address. The route command lets you specify which gateway to use when trying to reach a certain IP address (or more accurately, a certain ...


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The hosts file is used to map a hostname (such as localhost or superuser.com) to an IP address. It involves DNS, not routing - so you can't use the hosts file. I can't talk specifics on how you would use a static route to accomplish what you want to do, however.


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I have exactly this topology, including the PLC. Normally I have computers 1 and 2 connected to a physical router with different subnets involved. I then turn computer 2 into a software router and manually add a route to the computer 2<->PLC subnet on computer 1. But this does work fine all on the same subnet without a physical router. You need to: Turn ...


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Your netmask is not valid for the IP address you're using. Specifically, if you take your IP addresses and convert them to binary you get: IP = x.y.19.178 = XXXXXXXX.YYYYYYYY.00010011.10110010 MASK = 255.255.255.252 (/30) = 11111111.11111111.11111111.11111100 In order for an IP address to be valid for a subnet, the IP must be at the ...


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DHCP is dynamic IP so every time you turned on the lap,it would be assigned with different IP and also noted that it would be connected to WiFi connection at a time so it would catches the strong signal near your room.You can use the following url http://www.whatismyip.com/ip-address-lookup/ to find the external IP address that router is using to connect ...


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Set a route. http://technet.microsoft.com/en-us/library/bb490991.aspx Enter command line and write a route, probably somewhat like this: route add 192.168.1.0 MASK 255.255.255.0 192.168.1.17 where the first ip is your private network and the last ip is the ip of your network card (can be looked up with ipconfig) If you want a route that survives a ...


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In general, ISP Gateway devices (modem+router all in ones) are not configured to allow the use of an external internet connection. However, if your device has a WAN port, it's possible you can use it without engaging its internal modem component. If your device doesn't have a wan port, in some cases, modified,unofficial firmware can sometimes convert one of ...


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This has to do with the default route, not anything to do with iptables. If you want to switch your default gateway then run these commands: ip -4 route del default ip -4 route add default via <gateway ip> dev <interface> The gateway IP is the gateway or router for that interface's subnet. So, if eth1 is on Y.Y.Y.Y and netmask is ...


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You need masquerading (NAT) for the vpn clients. Something like: iptables -A POSTROUTING -s (subnet of vpn clients) -j MASQUERADE if your vpn server assigns clients to 192.168.1.0/24 for instance, put that as the -s argument.


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devices like routers (including PCs set up as routers) need multiple interfaces by definition (at least one for each network the device will be a part of). Imagine the simple case of a network router that was on two networks, 192.168.0.1 (IF 1) and 10.0.0.1 (IF 2). it would have route rules that would route all traffic to 10.x.y.z out interface 2, and all ...


1

You need to set up static routes for the services you want to go through the VPN (assuming you have IP forwarding enabled on the VPN server and have NAT configured). To add routes on Linux, use the following syntax: route add -net 192.168.1.0/24 gw 10.0.0.1 Where 192.168.1.0 is the network number you want to route, the /24 is the netmask. So for example ...


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If your LAN network is behind a (restricted-cone) NAT, then you cannot access machines in the LAN network from your WiFi network. Restricted-cone NAT hides all individual machines/machine IPs, the whole LAN network is mapped to one external IP (the 192.168.0.x IP of the Ubuntu machine). This allows machine behind a NAT to access machines outside of the NAT, ...


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Regarding your question about adding routes when connected to Cisco SSL VPN, the answer is no. The Anyconnect software requires the routing table to be frozen for security purposes (for example if split-tunneling is disabled, all traffic MUST traverse the tunnel.) It's a security requirement implemented by your network administrator. Hope that helps.


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The addresses starting with 2002: are 6to4 addresses. Those are a special kind of IPv6 addresses and not what you got with your tunnel. You should use the addresses you got with the tunnel instead. Usually you get a routed block like a /48 with the tunnel. Use /64's from that block for your LANs. In general unless you know what you are doing you should stay ...


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1) print out your route table. on windoze this is "route print". on linux "ip route" or "netstat -nr". 2) look for the default gateway and make sure its correct. the is "default" or "0.0.0.0" 3) if incorrect, delete is and add correct gateway. on linux "ip route add default via [gatewayip/netmaskbits] dev [device]". on windoze, this is something like: ...


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You need to use the first hop for the gateway, not your own computer. The interface used is generally whatever is on the same subnet as the specified gateway. If you want to manually assign one, you can use the "IF " directive at the end, such as "IF 1" or "IF 2".


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I'm not aware of any "real" VPN software that supports this. The typical way you do something like this (the poor man's VPN, if you will) is with SSH dynamic port forwarding -- some VPN services do provide SSH port forwarding as part of their offering. Then you just run something like ssh -D <port> <vpn_server_hostname_or_ip> and use ...


2

Your OpenVPN is probably configured for tun mode, which works on Layer 3 and won't propagate broadcasts across subnets. You need to switch it to tap mode, which works on Layer 2 and does propagate broadcasts. What you need to do with tap mode is create a bridge interface, such as br0, and then junction your physical eth0 and tap0 into it. br0 is then ...


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Broadcasts are not routed, this isn't a problem with OpenVPN, this is just how IP works. If OpenVPN is configured in layer 3 mode (aka tun) then it will act like a router, broadcasts will not be passed. Your option is to setup a bridge (aka tap), forming a layer 2 network, which will forward broadcasts. I am not sure what you are going to have to do to ...


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Question #1:How can I create a subnetwork like 192.168.2.0/24 on the same physical network? You can create a separate subnetwork alongside your existing LAN network simply by configuring hosts on the second network using IP addresses from the 192.168.2.0/24 subnet. For example: Existing Subnetwork "A" (using 255.255.255.0 mask): Router: ...



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