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VIRT-PHY: Use IPv4 multicast groups for private / local scope 

The addresses in the original code make little sense:
* 224.0.0.1 is "All systems on this subnet" and not routed
  outside the local ethernet segment
* 225.0.0.1 is in a RESERVED range that shouldn't be used

Change-Id: I8e3acd745e65a6cfa70b681a440da6a59a1ed0b5
This commit is contained in:
Harald Welte 2017-07-13 17:15:14 +02:00
parent c4324da7c6
commit 70dd7e5b75
1 changed files with 7 additions and 2 deletions
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src/host/virt_phy/include/virtphy/virtual_um.h
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@ -4,10 +4,15 @@
#include <osmocom/core/msgb.h>
#include "osmo_mcast_sock.h"
/* We use multicast group addresses from the 239.192.0.0/14 rage, as
* those are designated by RFC2365 as "IPv4 Organization Local Scope,
* "... the space from which an organization should allocate sub-
* ranges when defining scopes for private use." */
#define VIRT_UM_MSGB_SIZE 256
#define DEFAULT_MS_MCAST_GROUP "224.0.0.1"
#define DEFAULT_MS_MCAST_GROUP "239.193.23.1"
#define DEFAULT_MS_MCAST_PORT 4729 /* IANA-registered port for GSMTAP */
#define DEFAULT_BTS_MCAST_GROUP "225.0.0.1"
#define DEFAULT_BTS_MCAST_GROUP "239.193.23.2"
#define DEFAULT_BTS_MCAST_PORT 4729 /* IANA-registered port for GSMTAP */
struct virt_um_inst {