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Transport public net to different location ans source route backtraffic via gre

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This commit is contained in:
clerie 2021-01-13 13:52:04 +01:00
parent fff74fed87
commit 31b5abf7ec
2 changed files with 78 additions and 4 deletions
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80
hosts/carbon/configuration.nix
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@ -32,9 +32,16 @@
{ address = "10.152.0.1"; prefixLength = 32; } # Anycast
];
# Network
## Uplink
networking.interfaces.enp1s0.useDHCP = true;
networking.interfaces.enp2s0.ipv6.addresses = [ { address = "fd00:152:152:4::1"; prefixLength = 64; } ];
networking.interfaces.enp2s0.ipv4.addresses = [ { address = "10.152.4.1"; prefixLength = 24; } ];
## Local Network
networking.interfaces.enp2s0.ipv6.addresses = [
{ address = "fd00:152:152:4::1"; prefixLength = 64; }
{ address = "2a01:4f8:1c0c:8221::1"; prefixLength = 64; } # public IPs for local network
];
networking.interfaces.enp2s0.ipv4.addresses = [
{ address = "10.152.4.1"; prefixLength = 24; }
];
networking.nat = {
enableIPv6 = true;
@ -83,15 +90,82 @@
gre-gatekeeper4 = {
remote = "10.152.101.1";
local = (lib.head config.networking.interfaces.lo.ipv4.addresses).address;
address = "169.254.201.2/24";
address = "10.153.201.2/24";
};
};
};
# Routing tables
# Table: 10000
# - primary routes
# Table: 11000
# - ospf routes
# Table: 20101
# - default route to gatekeeper
#
# We will never use main table anymore
petabyte.policyrouting = {
enable = true;
rules6 = [
# main routes first except default route
{ rule = "lookup main suppress_prefixlength 0"; prio = 10000; }
# Prefixes defaulting to gatekeeper
{ rule = "from 2a01:4f8:1c0c:8221::/64 lookup 20101"; prio = 20000; }
{ rule = "from 2a01:4f8:1c0c:8221::/64 unreachable"; prio = 20001; }
# Everything else defaulting to main table after this
];
rules4 = [
# main routes first except default route
{ rule = "lookup main suppress_prefixlength 0"; prio = 10000; }
# Prefixes defaulting to gatekeeper
#{ rule = "from xxx lookup 20101"; prio = 20000; }
# Everything else defaulting to main table after this
];
};
services.bird2.enable = true;
services.bird2.config = ''
router id ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
ipv6 table gatekeeper6;
ipv4 table gatekeeper4;
protocol static static_gatekeeper_6 {
ipv6 {
table gatekeeper6;
};
route ::/0 via fd00:153:153:201::1;
}
protocol static static_gatekeeper_4 {
ipv4 {
table gatekeeper4;
};
route 0.0.0.0/0 via 10.153.201.1;
}
protocol kernel kernel_gatekeeper_6 {
ipv6 {
table gatekeeper6;
export filter {
krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address };
accept;
};
import none;
};
kernel table 20101;
}
protocol kernel kernel_gatekeeper_4 {
ipv4 {
table gatekeeper4;
export filter {
krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
accept;
};
import none;
};
kernel table 20101;
}
ipv6 table ospf6;
ipv4 table ospf4;

2
hosts/gatekeeper/configuration.nix
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@ -135,7 +135,7 @@
gre-carbon4 = {
remote = "10.152.104.1";
local = (lib.head config.networking.interfaces.lo.ipv4.addresses).address;
address = "169.254.201.1/24";
address = "10.153.201.1/24";
};
};
};