Subnet bandwith monitor

[greenpark]

Hello, all! There are 4 subnets that go to one interface, can I draw a graph for a separate subnet, that is, one of the four, is there such a plugin? or a separate free monitoring system, or try to draw it yourself?

[Atreides]

Those 4 subnets should exists as VLAN interfaces(subinterfaces) on your router, you can graph those interfaces.

[greenpark]

Sorry, I did not explain correctly, I have a network and in it there are 4 subnets on the router are summed up into one large network, how I will undress the volume of traffic in just one part of the large network.
192.168.1.0/26
192.168.1.64/26
192.168.1.128/26
192.168.1.192/26
in 192.168.1.0/24

[cigamit]

Simple Answer: You can't. Most routers only create SNMP counters for interfaces. So unless you are able to carve all those out into different interfaces you get the whole bucket (or like with Mikrotiks, create queues based upon the subnets, then monitor the queues instead of the interface)

[greenpark]

thanks, and if it will be any linux server?