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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. Change subject: VIRT-PHY: Use IPv4 multicast groups for private / local scope ...................................................................... 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 --- M src/osmo-bts-virtual/virtual_um.h 1 file changed, 7 insertions(+), 2 deletions(-) Approvals: Harald Welte: Looks good to me, approved Jenkins Builder: Verified diff --git a/src/osmo-bts-virtual/virtual_um.h b/src/osmo-bts-virtual/virtual_um.h index 6e7c384..ac098dd 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 { -- To view, visit https://gerrit.osmocom.org/3247 To unsubscribe, visit https://gerrit.osmocom.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: Iba1ae69f3f193a33f1da343c6562f67bd8d3557f Gerrit-PatchSet: 5 Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Owner: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder