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FS#1893 - Routing/NAT Offloading now working with VoIP/IPTV VLANs #6812

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openwrt-bot opened this issue Oct 13, 2018 · 2 comments
Open

FS#1893 - Routing/NAT Offloading now working with VoIP/IPTV VLANs #6812

openwrt-bot opened this issue Oct 13, 2018 · 2 comments
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@openwrt-bot
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jordipalet:

I'm using the latest build OpenWrt 18.06.1 r7258-5eb055306f / LuCI openwrt-18.06 branch (git-18.284.42397-55ebe88)

With ZBT-WG3526 (16M), MediaTek MT7621 ver:1 eco:3.

I've VLANs for VoIP and IPTV.

If I enable Routing/NAT Offloading (tried both options (software and hardware), it looks that this feature doesn't allows the VoIP and IPTV traffic to work as it was doing previously.+

I know this is experimental and may be still needs some more testing, etc., but I just wanted to let the developers know about this issue, in case, they haven't realized it.

@openwrt-bot
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LGA1150:

You can use flow offloading ONLY for specific VLAN as a workaround.
iptables -A forwarding_rule -i <lan_if> -o <wan_if> -m conntrack --ctstate RELATED,ESTABLISHED -j FLOWOFFLOAD --hw
ip6tables -A forwarding_rule -i <lan_if> -o <wan_if> -m conntrack --ctstate RELATED,ESTABLISHED -j FLOWOFFLOAD --hw

@openwrt-bot
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jordipalet:

It looks like that this works, but now I discovered that IPv6 is not offloaded (tried this and the default options in Luci for the routing/NAT Offloading.

To make sure, I'm testing with this environment with iperf3:

host client - LAN of MT7621 device - WAN - host server

Host and Server have addresses from the same /48, different /64 subnets.

Top among both shows no CPU/IRQ utilization for IPv4, but high levels for IPv6.

IPv4 can do 933 Mbits/sec, but IPv6 is only doing 700-800.

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