diff --git a/openbsc/src/gprs/gb_proxy_main.c b/openbsc/src/gprs/gb_proxy_main.c
index 921b53f..00a134f 100644
--- a/openbsc/src/gprs/gb_proxy_main.c
+++ b/openbsc/src/gprs/gb_proxy_main.c
@@ -200,6 +200,31 @@
 	.is_config_node	= bsc_vty_is_config_node,
 };
 
+/* default categories */
+static struct log_info_cat gprs_categories[] = {
+	[DGPRS] = {
+		.name = "DGPRS",
+		.description = "GPRS Packet Service",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+	[DNS] = {
+		.name = "DNS",
+		.description = "GPRS Network Service (NS)",
+		.enabled = 1, .loglevel = LOGL_INFO,
+	},
+	[DBSSGP] = {
+		.name = "DBSSGP",
+		.description = "GPRS BSS Gateway Protocol (BSSGP)",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+};
+
+static const struct log_info gprs_log_info = {
+	.filter_fn = gprs_log_filter_fn,
+	.cat = gprs_categories,
+	.num_cat = ARRAY_SIZE(gprs_categories),
+};
+
 int main(int argc, char **argv)
 {
 	struct gsm_network dummy_network;
@@ -214,11 +239,11 @@
 	signal(SIGUSR2, &signal_handler);
 	osmo_init_ignore_signals();
 
-	osmo_init_logging(&log_info);
+	osmo_init_logging(&gprs_log_info);
 
 	vty_info.copyright = openbsc_copyright;
 	vty_init(&vty_info);
-	logging_vty_add_cmds(&log_info);
+	logging_vty_add_cmds(&gprs_log_info);
 	gbproxy_vty_init();
 
 	handle_options(argc, argv);
diff --git a/openbsc/src/gprs/sgsn_main.c b/openbsc/src/gprs/sgsn_main.c
index 5558879..c3bc8d2 100644
--- a/openbsc/src/gprs/sgsn_main.c
+++ b/openbsc/src/gprs/sgsn_main.c
@@ -227,6 +227,70 @@
 	}
 }
 
+/* default categories */
+static struct log_info_cat gprs_categories[] = {
+	[DMM] = {
+		.name = "DMM",
+		.description = "Layer3 Mobility Management (MM)",
+		.color = "\033[1;33m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DSMS] = {
+		.name = "DSMS",
+		.description = "Layer3 Short Message Service (SMS)",
+		.color = "\033[1;37m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DPAG]	= {
+		.name = "DPAG",
+		.description = "Paging Subsystem",
+		.color = "\033[1;38m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DMEAS] = {
+		.name = "DMEAS",
+		.description = "Radio Measurement Processing",
+		.enabled = 0, .loglevel = LOGL_NOTICE,
+	},
+	[DREF] = {
+		.name = "DREF",
+		.description = "Reference Counting",
+		.enabled = 0, .loglevel = LOGL_NOTICE,
+	},
+	[DGPRS] = {
+		.name = "DGPRS",
+		.description = "GPRS Packet Service",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+	[DNS] = {
+		.name = "DNS",
+		.description = "GPRS Network Service (NS)",
+		.enabled = 1, .loglevel = LOGL_INFO,
+	},
+	[DBSSGP] = {
+		.name = "DBSSGP",
+		.description = "GPRS BSS Gateway Protocol (BSSGP)",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+	[DLLC] = {
+		.name = "DLLC",
+		.description = "GPRS Logical Link Control Protocol (LLC)",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+	[DSNDCP] = {
+		.name = "DSNDCP",
+		.description = "GPRS Sub-Network Dependent Control Protocol (SNDCP)",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+};
+
+static const struct log_info gprs_log_info = {
+	.filter_fn = gprs_log_filter_fn,
+	.cat = gprs_categories,
+	.num_cat = ARRAY_SIZE(gprs_categories),
+};
+
+
 int main(int argc, char **argv)
 {
 	struct gsm_network dummy_network;
@@ -241,11 +305,11 @@
 	signal(SIGUSR2, &signal_handler);
 
 	osmo_init_ignore_signals();
-	osmo_init_logging(&log_info);
+	osmo_init_logging(&gprs_log_info);
 
 	vty_info.copyright = openbsc_copyright;
 	vty_init(&vty_info);
-	logging_vty_add_cmds(&log_info);
+	logging_vty_add_cmds(&gprs_log_info);
         sgsn_vty_init();
 
 	handle_options(argc, argv);