Ipcop 能夠做 Multicast Routing 嗎?

multicast ipcop watchguard routing

bluegrass 2016-09-14 16:16:53 ‧ 2168 瀏覽

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Streaming Server 處於SUBNET A,
Subnet Ip 是 10.83.48.0~10.83.55.255 / 21
Streaming Server IP 是 10.83.50.171
Streaming server 是用 Multicast IP 227.0.0.1 直播的
SUBNET A 所有CLIENT都順利收到直播的
Subnet A 最頂層的L3是IPCOP

另一面SUBNET B也想要收到直播,
SUBNET B已經ROUTE去SUBNET A
10.83.48.0 255.255.248.0 10.83.48.1
但一般情形下MULTICAST記得好像無法ROUTE
Subnet B IP 是 10.93.0.0~10.93.0.255 / 24
SUBNET B最頂層的L3是WatchGuard,
WatchGuard其中一個WAN是接去SUBNET A的, ip是10.83.49.1

請問兩邊防火的設定方法/原理?