If they are sent on a LAN segment they shouldnt be forwarded beyond that LAN segment (most likely also has a TTL of 1). #HACK ROUTER PORT 5355 SOFTWARE#UDP 10.0.5.4:50615->255.255.255.255:5678 on ixp1 The customer is claming all these connections is affecting them and their Point of sales machines have intermitant connections back to the POS software in the cloud? I think it is BS but all this traffic has made me wonder why I am even seeing all this broadcast type traffic?Ģ24.0.0.x multicast addresses are all link local scoped addresses. What about the other udp ports from other customer netgear routers? Edit here is the actual port that this bridges Tik is supposedly trying to connect to on this customers linksys router. I will look at the ospf and dick with that too. Then under networks any customer facing network choose that other are instead of backbone? Whats weird is i see another mikrotik thats just sut up as a temp bridge trying to connect to this same customer using some weird port udp port like 506518 or something like that. Its created a dynamic entry for every network that I have added ( private and public ip gateways) I cant change them as they are all greyed out? I am going to take a wild guess, should I create another area and put all my customer facing network entries on a different area? I am sure its probably something basic I am missing? That's one thing but what about UDP port 5353 or do you think if I fix the OSPF issue then it will stop the other broadcast traffic as well? #HACK ROUTER PORT 5355 HOW TO#The public ip gateways are on the bridge facing the customers so I assume OSPF has to kind of use bridge to figure out how to route the public ips to the customers? Or am I wrong. Or is this a firmware issue with Epmp thats not blocking this? We see a lot of this Connection Refused - Policy violation UDP 199.5.xxx.xxx:5353->224.0.0.251:5353 on ixp1 I also see this Connection Refused - Policy violation PROTO 89 199.5.xxx.xxx->224.0.0.5 on ixp1 upon doing some torch on the mikrotik that his 199 ip belongs too protocal 89 appears to be OSPF which is what were are running so not sure why its hitting this customers router? I wonder if thats part of the issue? Thats what I am trying to figure out it says I am from what I can tell but its dynamic? I cant figure out how to make it NOT look at the bridge interface as being part of OSPF. The Epmp AP's are not set to stop client to client forwarding (cpe to cpe) would turning this on stop this? #HACK ROUTER PORT 5355 PDF#Animation In Sugar Carlos Lischetti Pdf Editor here. We are an all EpMp shop Mikrotiks at each tower all routed. Any NAT router or personal firewall should be able to block port 445 from the. SG Ports Services and Protocols - Port 5353 tcp/udp information, official and unofficial assignments, known security risks, trojans and applications use. PMMaybe if you start by telling us the model of your router, we can help. I logged into one of the offending customers routers to see if I could see any issues but once again they are basic SOHO routers so not sure if there is any option to block any outgoing multicast or whatever this is? Any thoughts? It almost appears these customers routers that are seeing slowness are being flooded with these requests. The source is other users on our network which most everyone is behind their own SOHO router such as a Netgear and or linksys etc. We see in the logs numerous blocked attempts to broadcast (for lack of better words) on UDP port 5353. Upon looking at the logs of their various routers Netgear or Linksys etc. We have had a few users call with issues connecting or slow speeds. #HACK ROUTER PORT 5355 WINDOWS#Tutorial Created Using Windows XP ProIf you’re not using this O/S your screenshots may look slightly different. The second half will show you how to forward those ports to your router so that outside sources can access them. The first half of this tutorial is intended to show you how to open ports on your PC.
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