Hello, I have problem with selective no-translation TYPE7 LSA to TYPE5 LSA on ABR. Scheme: https://ibb.co/mhbxwmy R3 announce connected routes by function: function allow_network() prefix set localnet; { localnet = [ 10.0.0.0/8{16,30 ]; ospf_metric1 = 10; if net ~ localnet then return true; else return false; } R3 > show ospf lsadb Area 0.0.0.6 Type LS ID Router Sequence Age Checksum 0007 10.19.15.0 212.127.92.253 8000089c 759 6843 0007 10.19.37.0 212.127.92.253 8000089c 759 7520 0007 10.19.40.255 212.127.92.253 8000089c 759 543e 0007 10.19.41.0 212.127.92.253 8000089c 759 4948 0007 10.19.61.0 212.127.92.253 8000089c 759 6c11 0007 10.19.62.255 212.127.92.253 8000089c 759 611b 0007 10.19.63.0 212.127.92.253 8000089c 759 5625 0007 10.19.64.255 212.127.92.253 8000089c 759 4b2f 0007 10.19.80.255 212.127.92.253 8000089c 759 9acf 0007 10.19.100.255 212.127.92.253 8000089c 759 bd98 0007 10.19.130.255 212.127.92.253 8000089c 759 72c5 0007 10.19.132.255 212.127.92.253 8000089c 759 5cd9 0007 10.19.141.0 212.127.92.253 8000089c 759 f834 0007 10.19.142.255 212.127.92.253 8000089c 759 ed3e 0007 10.19.143.0 212.127.92.253 8000089c 759 e248 0007 10.19.144.255 212.127.92.253 8000089c 759 d752 0007 10.19.145.0 212.127.92.253 8000089c 759 cc5c 0007 10.19.146.255 212.127.92.253 8000089c 759 c166 0007 10.19.147.0 212.127.92.253 8000089c 759 b670 0007 10.19.148.255 212.127.92.253 8000089c 759 ab7a 0007 10.19.149.0 212.127.92.253 8000089c 759 a084 0007 10.19.150.255 212.127.92.253 8000089c 759 958e 0007 10.19.161.0 212.127.92.253 8000089c 759 1cfc 0007 10.19.162.255 212.127.92.253 8000089c 759 1107 0007 10.19.163.0 212.127.92.253 8000089c 759 0611 0007 10.19.184.255 212.127.92.253 8000089c 759 1ee3 R1 (ABR) should translate TYPE7 do TYPE5 (GLOBAL AREA) but he does not do it for all. For example 10.19.80 is only at LSADB AREA6 - TYPE7. Routes for 10.19.80.0/24 looks the same as for translates for example 10.19.141.0/24 R1> show route for 10.19.141.0/24 all 10.19.141.0/24 via xx.xx.92.253 on vlan3960 [XXX 2019-06-17] * E1 (150/20) [212.127.92.253] Type: OSPF-E1 unicast univ OSPF.metric1: 20 OSPF.metric2: 16777215 OSPF.tag: 0x00000000 OSPF.router_id: 212.127.92.253 R1> show route for 10.19.80.0/24 all 10.19.80.0/24 via xx.xx.92.253 on vlan3960 [XXX 2019-06-17] * E1 (150/20) [212.127.92.253] Type: OSPF-E1 unicast univ OSPF.metric1: 20 OSPF.metric2: 16777215 OSPF.tag: 0x00000000 OSPF.router_id: 212.127.92.253 R1> show ospf lsadb Global 0005 10.19.64.255 212.127.92.5 800004c4 235 5304 0005 10.19.100.255 212.127.92.5 800004c4 235 c56d 0005 10.19.130.255 212.127.92.5 800004c4 235 7a9a 0005 10.19.132.255 212.127.92.5 800004c4 235 64ae 0005 10.19.141.0 212.127.92.5 800004c4 235 0109 0005 10.19.143.0 212.127.92.5 80000885 235 5de5 0005 10.19.145.0 212.127.92.5 80000826 235 069a 0005 10.19.146.255 212.127.92.5 80000885 235 3c04 0005 10.19.147.0 212.127.92.5 800004c4 235 be45 0005 10.19.148.255 212.127.92.5 800004c4 235 b34f 0005 10.19.149.0 212.127.92.5 800004c4 235 a859 0005 10.19.150.255 212.127.92.5 800004c4 235 9d63 0005 10.19.161.0 212.127.92.5 80000885 235 969a 0005 10.19.162.255 212.127.92.5 80000826 235 4a45 0005 10.19.184.255 212.127.92.5 800004c4 235 26b8 0005 10.19.15.0 212.127.92.5 800004c4 235 7018 0005 10.19.40.255 212.127.92.5 800004c4 235 5c13 0005 10.19.41.0 212.127.92.5 800004c4 235 511d 0005 10.19.63.0 212.127.92.5 800004c4 235 5ef9 0005 10.19.163.0 212.127.92.5 800004c4 235 0ee5 Area 0.0.0.6 Type LS ID Router Sequence Age Checksum 0007 10.19.15.0 212.127.92.253 800008a3 1286 5a4a 0007 10.19.37.0 212.127.92.253 800008a3 1286 6727 0007 10.19.40.255 212.127.92.253 800008a3 1286 4645 0007 10.19.41.0 212.127.92.253 800008a3 1286 3b4f 0007 10.19.61.0 212.127.92.253 800008a3 1286 5e18 0007 10.19.62.255 212.127.92.253 800008a3 1286 5322 0007 10.19.63.0 212.127.92.253 800008a3 1286 482c 0007 10.19.64.255 212.127.92.253 800008a3 1287 3d36 0007 10.19.80.255 212.127.92.253 800008a3 1287 8cd6 0007 10.19.100.255 212.127.92.253 800008a3 1287 af9f 0007 10.19.130.255 212.127.92.253 800008a3 1286 64cc 0007 10.19.132.255 212.127.92.253 800008a3 1286 4ee0 0007 10.19.141.0 212.127.92.253 800008a3 1286 ea3b 0007 10.19.142.255 212.127.92.253 800008a3 1286 df45 0007 10.19.143.0 212.127.92.253 800008a3 1286 d44f 0007 10.19.144.255 212.127.92.253 800008a3 1286 c959 0007 10.19.145.0 212.127.92.253 800008a3 1286 be63 0007 10.19.146.255 212.127.92.253 800008a3 1286 b36d 0007 10.19.147.0 212.127.92.253 800008a3 1286 a877 0007 10.19.148.255 212.127.92.253 800008a3 1286 9d81 0007 10.19.149.0 212.127.92.253 800008a3 1286 928b 0007 10.19.150.255 212.127.92.253 800008a3 1286 8795 0007 10.19.162.255 212.127.92.253 800008a3 1286 030e config from R1: area 0.0.0.0 { networks { xx.xx.92.4/30; xx.xx.92.8/30; }; interface "vlan3900" { cost 100; type ptp; }; interface "vlan3920" { cost 200; type ptp; }; interface "vlan4050" { stub; }; }; area 0.0.0.6 { nssa; translator yes; networks { xx.xx.92.252/30; }; interface "vlan3960" { type ptp; }; }; it happens on every version that I used (1.6.1, 1.6.4, 1.6.6). After restart bird process, others prefixes are not translated. In effect R2 does not know route for not tranlsated to TYPE5 routes. Regards, Konrad Kręciwilk