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OsmoBSCNAT » History » Version 3

zecke2, 02/19/2016 10:48 PM
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== BSC NAT/MUX ==
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=== Introduction ===
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The OpenBSC NAT is masquerading multiple BSCs behind one. It listens for incoming BSCs on
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port 5000 and connects to a specified MSC. It will forward Paging Requests and MGCP messgaes
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to the right BSC (if it is connected). Each incoming SCCP connection gets patched with a different
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Source Reference to avoid any collision between the different BSCs.
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To the network the NAT looks like a real BSC, to the BSC the NAT looks like almost a real MSC. One
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difference is that MGCP messages are not send via UDP but inside the IPA protocol to avoid
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any issues with firewalls and such.
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