[manet-dlep-rg] Example: TCP server on satcom modem

Teco Boot <teco@inf-net.nl> Fri, 22 November 2013 16:19 UTC

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From: Teco Boot <teco@inf-net.nl>
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Date: Fri, 22 Nov 2013 17:19:31 +0100
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Subject: [manet-dlep-rg] Example: TCP server on satcom modem
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I verified operation of a telnet server on a old type BGAN terminal (E500).
It is compatible with 3GPP TS 27.007.
It is multi-hop unicast reachable from routers and other node types. 
Multiple connections can be same source, same destination. Think of NAT. Interfaces on my routers pointing towards Internet have NAT.

Although 3GPP TS 27.007 is a standard, the satcom extensions are not. 
For LTE, it doesn't look much better.

Attached a screenshot with two active 3GPP TS 27.007 sessions.
Device provides IP address and default gateway. But SQ is zero, it is in pointing mode. So it is a blackhole.
Having DLEP on this type of equipment would help a lot.


lease {
  interface "eth1";
  server-name "BGAN-UT";
  option subnet-mask;
  option routers;
  option dhcp-lease-time 30;
  option dhcp-message-type 5;
  option dhcp-server-identifier;
  option dhcp-renewal-time 10;
  option dhcp-rebinding-time 10;
  renew 5 2013/11/22 16:11:19;
  rebind 5 2013/11/22 16:11:20;
  expire 5 2013/11/22 16:11:40;