Big Problem with multicasting.
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I had a huge problem with multicast adresses. I need to send a multicast packet to my local area network,with all its IPs so other computer will been able to estabilish a TCP/IP connection. My computer has 3 local area connections(1 for internet, 1 for internal network, and 1 for god know what...), and when i send packets it *Randomly* chooses a local area connection and send data to it. Is there a way i can choose the local area connection (in CSharp) or can i send my packets to All the connections at once.
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I had a huge problem with multicast adresses. I need to send a multicast packet to my local area network,with all its IPs so other computer will been able to estabilish a TCP/IP connection. My computer has 3 local area connections(1 for internet, 1 for internal network, and 1 for god know what...), and when i send packets it *Randomly* chooses a local area connection and send data to it. Is there a way i can choose the local area connection (in CSharp) or can i send my packets to All the connections at once.
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Sounds like a routing problem rather.
netsh | ipconfigleppie::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.It can't be a routing problem since there is no routers at all. It is simply the stupic computer choose randomly to what connection (or nick card) it sends its data. Ex: I have 2 nick cards. With 2 assigned adresses: 192.168.0.1 and 169.254.111.190 The i send my multicast packet, but i never know which one it will uses. Since my internal network passes throught 192.168.0.1, it it uses the other nick card, i had just send my message god know where. Thus i need a way to either send the message to both of them or to choose which one. (Windows is simple for people who use it for internet word and emails, but it is a constant headache for experts:mad:)
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It can't be a routing problem since there is no routers at all. It is simply the stupic computer choose randomly to what connection (or nick card) it sends its data. Ex: I have 2 nick cards. With 2 assigned adresses: 192.168.0.1 and 169.254.111.190 The i send my multicast packet, but i never know which one it will uses. Since my internal network passes throught 192.168.0.1, it it uses the other nick card, i had just send my message god know where. Thus i need a way to either send the message to both of them or to choose which one. (Windows is simple for people who use it for internet word and emails, but it is a constant headache for experts:mad:)
"routing" has to do with a route table, not necessarily a router (which is really just a hardware device with a programmable route table and is dedicated to routing packets). TCP is configured to route packets through a particular network interface card (NIC) depending on the destination address. Any computer with a TCP stack uses a route table.
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It can't be a routing problem since there is no routers at all. It is simply the stupic computer choose randomly to what connection (or nick card) it sends its data. Ex: I have 2 nick cards. With 2 assigned adresses: 192.168.0.1 and 169.254.111.190 The i send my multicast packet, but i never know which one it will uses. Since my internal network passes throught 192.168.0.1, it it uses the other nick card, i had just send my message god know where. Thus i need a way to either send the message to both of them or to choose which one. (Windows is simple for people who use it for internet word and emails, but it is a constant headache for experts:mad:)
try this:
D:\Documents and Settings\lepp>netstat -r
Route Table
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 50 56 c0 00 08 ...... VMware Virtual Ethernet Adapter for VMnet8
0x3 ...00 50 56 c0 00 01 ...... VMware Virtual Ethernet Adapter for VMnet1
0x10005 ...00 05 1c 05 9c 67 ...... Realtek RTL8139/810X Family PCI Fast Ethernet NIC===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.2 20
62.47.38.202 255.255.255.255 192.168.0.1 192.168.0.2 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.2 192.168.0.2 20
192.168.0.2 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.0.255 255.255.255.255 192.168.0.2 192.168.0.2 20
192.168.213.0 255.255.255.0 192.168.213.1 192.168.213.1 20
192.168.213.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.213.255 255.255.255.255 192.168.213.1 192.168.213.1 20
192.168.225.0 255.255.255.0 192.168.225.1 192.168.225.1 20
192.168.225.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.225.255 255.255.255.255 192.168.225.1 192.168.225.1 20
217.84.117.73 255.255.255.255 192.168.0.1 192.168.0.2 20
** 224.0.0.0 240.0.0.0 192.168.0.2 192.168.0.2 20
224.0.0.0 240.0.0.0 192.168.213.1 192.168.213.1 20
224.0.0.0 240.0.0.0 192.168.225.1 192.168.225.1 20**
255.255.255.255 255.255.255.255 192.168.0.2 192.168.0.2 1
255.255.255.255 255.255.255.255 192.168.213.1 192.168.213.1 1
255.255.255.255 255.255.255.255 192.168.225.1 192.168.225.1 1
Default Gateway: 192.168.0.1Persistent Routes:
NoneYou can clearly see that each route is properly mapped. Use route to modify. leppie::
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try this:
D:\Documents and Settings\lepp>netstat -r
Route Table
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 50 56 c0 00 08 ...... VMware Virtual Ethernet Adapter for VMnet8
0x3 ...00 50 56 c0 00 01 ...... VMware Virtual Ethernet Adapter for VMnet1
0x10005 ...00 05 1c 05 9c 67 ...... Realtek RTL8139/810X Family PCI Fast Ethernet NIC===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.2 20
62.47.38.202 255.255.255.255 192.168.0.1 192.168.0.2 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.2 192.168.0.2 20
192.168.0.2 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.0.255 255.255.255.255 192.168.0.2 192.168.0.2 20
192.168.213.0 255.255.255.0 192.168.213.1 192.168.213.1 20
192.168.213.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.213.255 255.255.255.255 192.168.213.1 192.168.213.1 20
192.168.225.0 255.255.255.0 192.168.225.1 192.168.225.1 20
192.168.225.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.225.255 255.255.255.255 192.168.225.1 192.168.225.1 20
217.84.117.73 255.255.255.255 192.168.0.1 192.168.0.2 20
** 224.0.0.0 240.0.0.0 192.168.0.2 192.168.0.2 20
224.0.0.0 240.0.0.0 192.168.213.1 192.168.213.1 20
224.0.0.0 240.0.0.0 192.168.225.1 192.168.225.1 20**
255.255.255.255 255.255.255.255 192.168.0.2 192.168.0.2 1
255.255.255.255 255.255.255.255 192.168.213.1 192.168.213.1 1
255.255.255.255 255.255.255.255 192.168.225.1 192.168.225.1 1
Default Gateway: 192.168.0.1Persistent Routes:
NoneYou can clearly see that each route is properly mapped. Use route to modify. leppie::
But this doesn solve my problem: Here is the my route table (The good info only). 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 169.254.111.190 169.254.111.190 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 Currently it uses 169.254.111.190 to send my multicast packets to. Now if i disable the 169.254.111.190 my routing table would be: 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 and it will send the ulticast packets to 65.92.106.255 IF i disable this lat one i will get: 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 and my data would be send to 192.168.100.1 Now if i connect the other 2 i will get 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 169.254.111.190 169.254.111.190 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 and the data would be sent to 192.168.100.1 Thus you se, depending on some strange criteria, i never know where my data would be send to ? It can be any of these 3. 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 169.254.111.190 169.254.111.190 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 I can do like send the data to the first one, but it will create several problems like with Unreal Tournement when you try to play on LAN and can not login. Thus does anybody know how can i change it using CSharp. (Without disabling all the stuff, to which i will probably not have access anyway in the real world).
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But this doesn solve my problem: Here is the my route table (The good info only). 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 169.254.111.190 169.254.111.190 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 Currently it uses 169.254.111.190 to send my multicast packets to. Now if i disable the 169.254.111.190 my routing table would be: 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 and it will send the ulticast packets to 65.92.106.255 IF i disable this lat one i will get: 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 and my data would be send to 192.168.100.1 Now if i connect the other 2 i will get 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 169.254.111.190 169.254.111.190 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 and the data would be sent to 192.168.100.1 Thus you se, depending on some strange criteria, i never know where my data would be send to ? It can be any of these 3. 224.0.0.0 224.0.0.0 65.92.106.225 65.92.106.225 1 224.0.0.0 224.0.0.0 169.254.111.190 169.254.111.190 1 224.0.0.0 224.0.0.0 192.168.100.1 192.168.100.1 1 I can do like send the data to the first one, but it will create several problems like with Unreal Tournement when you try to play on LAN and can not login. Thus does anybody know how can i change it using CSharp. (Without disabling all the stuff, to which i will probably not have access anyway in the real world).
Your net mask seems to be very odd. are you sure you want 224.0.0.0 as net mask for all your connections. Keep also in mind that the network metric is 1 for all your connections. This number is used to decide which connection to choose if several routes are possible the route with the least metric number will be used.
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Your net mask seems to be very odd. are you sure you want 224.0.0.0 as net mask for all your connections. Keep also in mind that the network metric is 1 for all your connections. This number is used to decide which connection to choose if several routes are possible the route with the least metric number will be used.
I only put 224.0.0.0 because it is the only one i care about( multicast mask). The full thing would be too big to display. I am aware of metrics, but i don't want to modify them since the application i am making is a game and you dont wont a game scrapping all your network info :).