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Add policy based routing

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This commit is contained in:
clerie 2020-12-17 03:04:30 +01:00
parent 9f8282e83b
commit 87e4a629d8
2 changed files with 106 additions and 6 deletions
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54
hosts/nonat/configuration.nix
View File

@ -66,6 +66,20 @@
networking.firewall.allowedUDPPorts = [ 51337 ];
petabyte.policyrouting = {
enable = true;
rules6 = [
{ rule = "from all to fd00:152:152::/48 lookup 1000"; prio = 10000; } # OSPF
{ rule = "from fd00:152:152::/48 lookup 2000"; prio = 10000; } # BGP
{ rule = "from all to fd00:152:152::/48 unreachable"; prio = 20000; }
];
rules4 = [
{ rule = "from all to 10.152.0.0/16 lookup 1000"; prio = 10000; } # OSPF
{ rule = "from 10.152.0.0/16 lookup 2000"; prio = 10000; } # BGP
{ rule = "from all to 10.152.0.0/16 unreachable"; prio = 20000; }
];
};
services.bird2.enable = true;
services.bird2.config = ''
router id ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
@ -110,6 +124,7 @@
}
protocol kernel kernel_ospf6 {
kernel table 1000;
ipv6 {
table ospf6;
export filter {
@ -121,6 +136,7 @@
}
protocol kernel kernel_ospf4 {
kernel table 1000;
ipv4 {
table ospf4;
export filter {
@ -131,6 +147,30 @@
};
}
protocol kernel kernel_bgp6 {
kernel table 2000;
ipv6 {
table bgp6;
export filter {
krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address };
accept;
};
import none;
};
}
protocol kernel kernel_bgp4 {
kernel table 2000;
ipv4 {
table bgp4;
export filter {
krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
accept;
};
import none;
};
}
protocol ospf v3 ospf_6 {
ipv6 {
table ospf6;
@ -165,6 +205,7 @@
source address ${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address };
ipv6 {
table bgp6;
igp table ospf6;
next hop self;
import keep filtered;
import all;
@ -178,6 +219,7 @@
source address ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
ipv4 {
table bgp4;
igp table ospf4;
next hop self;
import keep filtered;
import all;
@ -185,14 +227,22 @@
};
}
protocol bgp bgp_carbon from ibgp6 {
protocol bgp bgp_carbon6 from ibgp6 {
neighbor fd00:152:152:104::1 as 4200002574;
}
protocol bgp bgp_porter from ibgp6 {
protocol bgp bgp_carbon4 from ibgp4 {
neighbor 10.152.104.1 as 4200002574;
}
protocol bgp bgp_porter6 from ibgp6 {
neighbor fd00:152:152:102::1 as 4200002574;
}
protocol bgp bgp_porter4 from ibgp4 {
neighbor 10.152.102.1 as 4200002574;
}
protocol device {
scan time 10;
}

58
hosts/porter/configuration.nix
View File

@ -58,6 +58,20 @@
networking.firewall.allowedUDPPorts = [ 50138 51337 ];
petabyte.policyrouting = {
enable = true;
rules6 = [
{ rule = "from all to fd00:152:152::/48 lookup 1000"; prio = 10000; } # OSPF
{ rule = "from fd00:152:152::/48 lookup 2000"; prio = 10000; } # BGP
{ rule = "from all to fd00:152:152::/48 unreachable"; prio = 20000; }
];
rules4 = [
{ rule = "from all to 10.152.0.0/16 lookup 1000"; prio = 10000; } # OSPF
{ rule = "from 10.152.0.0/16 lookup 2000"; prio = 10000; } # BGP
{ rule = "from all to 10.152.0.0/16 unreachable"; prio = 20000; }
];
};
services.bird2.enable = true;
services.bird2.config = ''
router id ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
@ -77,7 +91,8 @@
};
}
protocol kernel kernel_6 {
protocol kernel kernel_ospf6 {
kernel table 1000;
ipv6 {
table ospf6;
export filter {
@ -88,7 +103,8 @@
};
}
protocol kernel kernel_4 {
protocol kernel kernel_ospf4 {
kernel table 1000;
ipv4 {
table ospf4;
export filter {
@ -99,6 +115,30 @@
};
}
protocol kernel kernel_bgp6 {
kernel table 2000;
ipv6 {
table bgp6;
export filter {
krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address };
accept;
};
import none;
};
}
protocol kernel kernel_bgp4 {
kernel table 2000;
ipv4 {
table bgp4;
export filter {
krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
accept;
};
import none;
};
}
protocol ospf v3 ospf_6 {
ipv6 {
table ospf6;
@ -141,6 +181,7 @@
source address ${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address };
ipv6 {
table bgp6;
igp table ospf6;
next hop self;
import keep filtered;
import all;
@ -154,6 +195,7 @@
source address ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
ipv4 {
table bgp4;
igp table ospf4;
next hop self;
import keep filtered;
import all;
@ -161,14 +203,22 @@
};
}
protocol bgp bgp_carbon from ibgp6 {
protocol bgp bgp_carbon6 from ibgp6 {
neighbor fd00:152:152:104::1 as 4200002574;
}
protocol bgp bgp_nonat from ibgp6 {
protocol bgp bgp_carbon4 from ibgp4 {
neighbor 10.152.104.1 as 4200002574;
}
protocol bgp bgp_nonat6 from ibgp6 {
neighbor fd00:152:152:103::1 as 4200002574;
}
protocol bgp bgp_nonat4 from ibgp4 {
neighbor 10.152.103.1 as 4200002574;
}
protocol device {
scan time 10;
}