Is a routing table entry for UPNP Multicast (still) needed?

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Busywait
Posts: 6
Joined: Sat Nov 25, 2017 3:15 pm
AV Hardware: Xbox One, Bubble uPNP

Is a routing table entry for UPNP Multicast (still) needed?

Post by Busywait » Mon Jun 25, 2018 5:04 pm

I've upgraded the Twonky Server on my old NAS, and noticed a difference between my oldest configurations, and what I have currently.

I *used* to have a script that added an additional routing table entry "for UPNP multicast routing":
#route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0

My understanding was that this was needed for the Twonky server to remain visible to the control points on my network, however, I noticed that I've not had this in place for a few days, and I've not noticed any probems.

Is it just superstition that my NAS (which only hosts SMB shares and Twonky) should have this route, or is there an advantage that I haven't spotted yet?

My route table without this explicit entry for Multicast looks like this:

Code: Select all

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         bbhub           0.0.0.0         UG    0      0        0 eth0
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0

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