I have a mikrotik in home for studies, and I’m auditioning for the UPnP pppoe interfaces. happens that this mikrotik this between the PC and the broadband routerconforme diagram below
adsl router (dhcp server) ↔ (dhcp client Ether1) mikrotik (pppoe server with UPnP ether2) ↔ pc with pppoe client
I know I could use the adsl modem in bridge and create the mikrotik one pppoe connection, but I wondered why mikrotik is not opening the door tcp or udp in adsl same modem with the UPnP function activated and having informed the Ether1 is external interface? adsl modem supports the UPnP and is running fine.
taking advantage of the topic I have another doubt. if I have two pppoe clients connected to mikrotik and both try to open the same port, UPnP will create a duplicate rule or will create a rule using an unused port?
Well. It could be while mikrotik develops the client’s side of upnp and makes some way to cascade the upnp calls and answers. I thought that ros is used by those people who want some level of certainty and security. But upnp is something quite unsecure that opens holes into the networks. I suggest to let it be off.
I have a small isp and use “nat”. UPnP for pppoe believe it would greatly help to solve problems of microsoft live and psn network, besides offering use of p2p programs easier for my clients. I’m doing some tests before put into production, the result that most interests me and support for UPnP to pppoe server. I use my isp pppoe client as exit to the Internet, but at home I came across this problem, since my home rb450 burned, so I’m using my modem dhcp to offer internet to mikrotik study, and I imagine that I can come across the scenery like in the future. Besides this a smart way to map ports, using others that are not being used, if the UPnP need to create a rule for a port that is already being used, it would be great but I had to do the simulation here yet.