[Help] About Routing!

[thienphongtran]

I created below model. it was configured basically. now, i want to route a packet from Com 1 to Com 4 go through MSwitch 2. It means the path: Com 1 -> MSwitch 0 -> MSwitch 2 -> MSwitch 1 -> Com 4. Now, I have configured RIP method to all MSwitch and the path actually is(I used TRACERT command): Com 1 -> MSwitch 0 -> MSwitch 1 -> Com 4.

much appreciate!

p/s: Sorry my eng isnt clear

[Joseph W. Doherty]

By default, RIP "counts" hops, and the shortest number of hops is the path used. I.e. using MSW2 adds a hop, which is why it's not used.

To use it, you need to increase the hop count between MSW0 and MSW1 by 2. (I recall [?] this can be done with an offset adjustment.)

[thienphongtran]

@Joseph W. Doherty thanks for reply! Now i want to connect other network (Ex: 1.1.7.0) to MSwitch 0. I want this network still get through path: 1.1.7.0 -> MS0 -> MS1->Com4. and Net 1.1.1.0: MS0 ->MS2 ->MS1->Com 4. 

If i use Com 3 as a Proxy Server and set Com 1 to use this Proxy, It's ok?

[Joseph W. Doherty]

If you want different source networks to use different paths to the same destination, often you would use PBR (policy based routing).

As to using a proxy, generally the host needs to share a network with the proxy server, which is not the case for Com 1 and Com 3.

[thienphongtran]

@Joseph W. Doherty you mean Clients and Proxy Server must to be in the same network?

[Joseph W. Doherty]

I believe, physically, yet.

[thienphongtran]

@Joseph W. Doherty i use proxy server in other country that i believe it's Network is different from my Network, it still run correct. why is that?

[Joseph W. Doherty]

What kind of proxy is it? I'm thinking of a network proxy, but if it's something like a protocol proxy, then yes, it doesn't have to be on the same network.

[thienphongtran]

@Joseph W. Doherty  i created a model. Clients, Server and Peer0 are connected to each other(ping ok). now i want Clients to use a Proxy server to change their IP into Server's IP. ex: 1.1.3.x -> 1.1.1.x. 

Where should i set up Proxy server?

[Joseph W. Doherty]

Sorry, it's unclear to me what you're trying to accomplish.

[thienphongtran]

@Joseph W. Doherty Peer0 is a external network. i want Clients to be connected to this network via a Proxy server. and Output IP of Proxy Ssrver will be kind of 1.1.1.x or 1.1.2.x as the Server's IP. Where should i put that Proxy server at? Sorry my english is so bad.

[Joseph W. Doherty]

"Sorry my english is so bad."

My understanding of your native language is probably (much, much) worst than yours of English. ;)

Anyway, what it sounds like you're describing is NAT.(?)

If so, a NAT device only needs to be in-line, somewhere, between the ends of the conversations.

What's confusing me, a proxy server usually intercepts some particular protocol, like a web proxy. Such, too, are often in-line, although other devices, that are in-line, might redirect traffic to them. Depending how the in-line device redirects to the actual proxy device, that device could be elsewhere in the network.

For example, the web proxy on Cisco routers can tunnel redirected traffic to a web proxy.

[thienphongtran]

@Joseph W. Doherty my knowledge about Proxy is so vague. according to my knowledge, Proxy must have 2 IP at least (input and output). I want clients to connect to Peer0 via Proxy that have output IP is 1.1.1.x or 1.1.2.x

[Joseph W. Doherty]

Ah, well again, that sounds more like you're describing a NAT (network address translation) service, which I don't recall generally being referred to as a proxy but perhaps in could be in a very generic way.

See if these articles make sense, or not:
https://en.wikipedia.org/wiki/Proxy_server
https://en.wikipedia.org/wiki/Network_address_translation

[thienphongtran]

@Joseph W. Doherty sorry for my late reply. i am on another duty now. thanks for your support!