diff options
| author | Harald Welte <laforge@gnumonks.org> | 2017-07-13 17:16:45 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2017-07-13 21:35:33 +0200 |
| commit | e3b8279f26547b3af44fe11e1469a3b185a1278d (patch) | |
| tree | 5bf8d61f2ca656638233997c95afe054d6fd9067 /src | |
| parent | 6feae225eb2a55577a80204153995aabcfd59b77 (diff) | |
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: Iba1ae69f3f193a33f1da343c6562f67bd8d3557f
Diffstat (limited to 'src')
| -rw-r--r-- | src/osmo-bts-virtual/virtual_um.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/osmo-bts-virtual/virtual_um.h b/src/osmo-bts-virtual/virtual_um.h index 6e7c3841..ac098dd4 100644 --- a/src/osmo-bts-virtual/virtual_um.h +++ b/src/osmo-bts-virtual/virtual_um.h @@ -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 { |