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401
roles/exit/templates/frr.conf.j2
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401
roles/exit/templates/frr.conf.j2
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{% set lo_address = interfaces | selectattr('name', '==', 'lo')
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| map(attribute='ip_addresses') | first
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| selectattr('role') | selectattr('role.value', '==', 'loopback')
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| map(attribute='address') %}
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{% set my_index = inventory_hostname.split('-')[1]|int %}
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{% set bridge = interfaces | selectattr('type') | selectattr('type.value', '==', 'bridge') | first %}
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{% set my_vlans = bridge.tagged_vlans | sort(attribute='vid') -%}
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frr defaults datacenter
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log syslog informational
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service integrated-vtysh-config
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# Route to the outside world.
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vrf outside
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ip route 0.0.0.0/0 {{ (interfaces | selectattr('name', '==', iface_uplink) | first).custom_fields.gateway.address | ipaddr('address') }} {{ iface_uplink }}
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ipv6 route ::/0 fe80::2 {{ iface_uplink }}
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# Don’t announce anything at start until we get routes from all our peers.
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# Without this packets might get dropped until all routes are synced.
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bgp update-delay 10
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# Route installation into kernel fails (rarely) without this option.
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# It is not documented anywhere and appears to be a Cumulus extension.
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zebra nexthop proto only
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router-id {{ lo_address | ipv4 | first | ipaddr('address') }}
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# Default VRF.
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router bgp {{ asn.asn }}
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bgp bestpath as-path multipath-relax
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neighbor fabric peer-group
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neighbor fabric remote-as external
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neighbor fabric capability extended-nexthop
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neighbor peerlink.4094 interface remote-as external
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neighbor peerlink.4094 capability extended-nexthop
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neighbor peerlink.4094 bfd 3 150 150
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{% for iface in ifaces_fabric %}
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neighbor {{ iface }} interface peer-group fabric
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neighbor {{ iface }} bfd 3 150 150
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{% endfor %}
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address-family ipv4 unicast
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redistribute connected route-map loopback
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neighbor fabric soft-reconfiguration inbound
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neighbor fabric route-map fabric->default in
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neighbor fabric route-map default->fabric out
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import vrf outside
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import vrf route-map default-import
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exit-address-family
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address-family ipv6 unicast
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redistribute connected route-map loopback
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neighbor fabric activate
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neighbor fabric soft-reconfiguration inbound
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neighbor fabric route-map fabric->default in
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neighbor fabric route-map default->fabric out
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import vrf outside
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import vrf route-map default-import
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exit-address-family
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address-family l2vpn evpn
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advertise-all-vni
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advertise-default-gw
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neighbor fabric activate
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neighbor peerlink.4094 activate
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exit-address-family
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# Outside VRF. Direct route to the world, everything else goes to the firewall.
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router bgp {{ asn.asn }} vrf outside
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bgp bestpath as-path multipath-relax
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neighbor peerlink.4 interface remote-as external
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neighbor peerlink.4 capability extended-nexthop
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neighbor peerlink.4 bfd 3 150 150
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neighbor firewall peer-group
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neighbor firewall remote-as external
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neighbor firewall capability extended-nexthop
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{% for iface in ifaces_firewall %}
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neighbor {{ iface }}.4 interface peer-group firewall
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neighbor {{ iface }}.4 bfd 3 150 150
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{% endfor %}
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address-family ipv4 unicast
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neighbor peerlink.4 soft-reconfiguration inbound
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neighbor peerlink.4 route-map peer.4->me in
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neighbor peerlink.4 route-map me->peer.4 out
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neighbor firewall allowas-in 1
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neighbor firewall default-originate
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neighbor firewall soft-reconfiguration inbound
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neighbor firewall route-map outside->firewall out
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{% for iface in ifaces_firewall %}
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neighbor {{ iface }}.4 route-map firewall-{{ loop.index }}->outside in
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{% endfor %}
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redistribute static
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redistribute connected route-map loopback-outside
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import vrf default
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import vrf route-map outside-import
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exit-address-family
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address-family ipv6 unicast
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neighbor peerlink.4 activate
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neighbor peerlink.4 allowas-in origin
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neighbor peerlink.4 soft-reconfiguration inbound
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neighbor peerlink.4 route-map peer.4->me in
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neighbor peerlink.4 route-map me->peer.4 out
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neighbor firewall activate
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neighbor firewall allowas-in 1
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neighbor firewall default-originate
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neighbor firewall soft-reconfiguration inbound
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neighbor firewall route-map outside->firewall out
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{% for iface in ifaces_firewall %}
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neighbor {{ iface }}.4 route-map firewall-{{ loop.index }}->outside in
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{% endfor %}
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redistribute static
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redistribute connected route-map loopback-outside
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import vrf default
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import vrf route-map outside-import
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exit-address-family
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# Inside VRF. Default route via firewall. Direct routes to servers and offices.
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router bgp {{ asn.asn }} vrf inside
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bgp bestpath as-path multipath-relax
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neighbor peerlink.2 interface remote-as external
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neighbor peerlink.2 capability extended-nexthop
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neighbor peerlink.2 bfd 3 150 150
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neighbor firewall peer-group
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neighbor firewall remote-as external
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neighbor firewall capability extended-nexthop
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{% for iface in ifaces_firewall %}
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neighbor {{ iface }}.2 interface peer-group firewall
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neighbor {{ iface }}.2 bfd 3 150 150
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{% endfor %}
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address-family ipv4 unicast
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neighbor peerlink.2 soft-reconfiguration inbound
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neighbor peerlink.2 route-map peer.2->me in
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neighbor peerlink.2 route-map me->peer.2 out
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neighbor firewall allowas-in 1
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neighbor firewall soft-reconfiguration inbound
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neighbor firewall route-map inside->firewall out
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{% for iface in ifaces_firewall %}
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neighbor {{ iface }}.2 route-map firewall-{{ loop.index }}->inside in
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{% endfor %}
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redistribute connected route-map loopback-inside
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{% for vlan in my_vlans %}
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import vrf {{ vlan.name }}
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{% endfor %}
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import vrf default
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import vrf route-map inside-import
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exit-address-family
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address-family ipv6 unicast
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neighbor peerlink.2 activate
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neighbor peerlink.2 soft-reconfiguration inbound
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neighbor peerlink.2 route-map peer.2->me in
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neighbor peerlink.2 route-map me->peer.2 out
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neighbor firewall activate
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neighbor firewall allowas-in 1
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neighbor firewall soft-reconfiguration inbound
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neighbor firewall route-map inside->firewall out
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{% for iface in ifaces_firewall %}
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neighbor {{ iface }}.2 route-map firewall-{{ loop.index }}->inside in
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{% endfor %}
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redistribute connected route-map loopback-inside
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{% for vlan in my_vlans %}
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import vrf {{ vlan.name }}
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{% endfor %}
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import vrf default
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import vrf route-map inside-import
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exit-address-family
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{% for vlan in my_vlans %}
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# VRF for L2 network {{ vlan.name }}. Imports gateway from inside VRF.
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router bgp {{ asn.asn }} vrf {{ vlan.name }}
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bgp bestpath as-path multipath-relax
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address-family ipv4 unicast
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redistribute connected
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import vrf inside
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import vrf route-map office-import
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exit-address-family
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address-family ipv6 unicast
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redistribute connected
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import vrf inside
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import vrf route-map office-import
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exit-address-family
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{% endfor %}
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# Prefix lists.
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ip prefix-list default permit 0.0.0.0/0
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ipv6 prefix-list default permit ::/0
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ip prefix-list fabric permit 10.34.0.0/24 ge 32
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ipv6 prefix-list fabric permit 2001:1470:fffd:3400::/64 ge 128
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{% for vlan in my_vlans %}
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{% set prefixes = query('netbox.netbox.nb_lookup', 'prefixes', api_filter='vlan_id='~vlan.id, raw_data=true) %}
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{% for prefix in prefixes %}
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{% if prefix.family.value == 4 %}
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ip prefix-list office permit {{ prefix.prefix }} ge 24
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{% else %}
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ipv6 prefix-list office permit {{ prefix.prefix }} ge 64
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{% endif %}
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{% endfor %}
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{% endfor %}
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ip prefix-list vpn permit {{ wg_net | ipaddr('subnet') }}
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ip prefix-list nat permit {{ wg_ip | ipaddr('host') }}
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{% for network in nat %}
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ip prefix-list nat permit {{ network }}
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{% endfor %}
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{% for prefix in query('netbox.netbox.nb_lookup', 'prefixes', raw_data=true, api_filter='role=bgp') | selectattr('tenant') %}
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{% if prefix.family.value == 4 %}
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ip prefix-list dc permit {{ prefix.prefix }} ge 32
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{% else %}
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ipv6 prefix-list dc permit {{ prefix.prefix }} ge 64
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{% endif %}
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{% endfor %}
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# Route maps for redistributing own IPs from various VRFs.
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route-map loopback permit 1
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match interface lo
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route-map loopback-inside permit 1
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match interface inside
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route-map loopback-outside permit 1
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match interface outside
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# Route maps for importing between VRFs.
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route-map default-import permit 10
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match ip address prefix-list default
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route-map default-import permit 11
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match ipv6 address prefix-list default
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route-map default-import permit 21
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match ipv6 address prefix-list office
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route-map default-import permit 30
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match ip address prefix-list nat
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route-map outside-import permit 10
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match ip address prefix-list dc
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route-map outside-import permit 11
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match ipv6 address prefix-list dc
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route-map office-import permit 10
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match ip address prefix-list default
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route-map office-import permit 11
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match ipv6 address prefix-list default
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route-map inside-import permit 20
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match ip address prefix-list office
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route-map inside-import permit 21
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match ipv6 address prefix-list office
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# Route maps for advertised and received routes.
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# Inside ↔ fabric.
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route-map default->fabric permit 10
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match ip address prefix-list default
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route-map default->fabric permit 11
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match ipv6 address prefix-list default
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route-map default->fabric permit 20
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match ip address prefix-list fabric
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route-map fabric->default permit 10
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match ip address prefix-list fabric
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route-map fabric->default permit 20
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match ip address prefix-list dc
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route-map fabric->default permit 21
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match ipv6 address prefix-list dc
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# Inside ↔ firewall.
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route-map inside->firewall permit 1
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match interface lo
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route-map inside->firewall permit 20
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match ip address prefix-list office
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route-map inside->firewall permit 21
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match ipv6 address prefix-list office
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route-map firewall->inside permit 1
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match ip address prefix-list fabric
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route-map firewall->inside permit 2
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match ipv6 address prefix-list fabric
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route-map firewall->inside permit 10
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match ip address prefix-list default
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route-map firewall->inside permit 11
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match ipv6 address prefix-list default
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# Outside ↔ firewall.
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route-map outside->firewall permit 10
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match ip address prefix-list default
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route-map outside->firewall permit 11
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match ipv6 address prefix-list default
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route-map firewall->outside permit 1
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match ip address prefix-list fabric
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route-map firewall->outside permit 2
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match ipv6 address prefix-list fabric
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route-map firewall->outside permit 21
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match ipv6 address prefix-list office
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route-map firewall->outside permit 30
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match ip address prefix-list nat
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# Tag routes from each firewall. Set weight for primary to 200 and secondary to 100.
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{% for firewall in ifaces_firewall %}
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route-map firewall-{{ loop.index }}->inside permit 1
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set tag {{ loop.index }}
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set weight {{ 100 * loop.index }}
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call firewall->inside
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route-map firewall-{{ loop.index }}->outside permit 1
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set tag {{ loop.index }}
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set weight {{ 100 * loop.index }}
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call firewall->outside
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{% endfor %}
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# Backup routes over peer link are announced to the peer with BGP
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# metrics 190 and 90. These values are copied to weights by receiving
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# peer, to be used alongside local routes with weights 200 and 100.
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# These are the route maps for peerlink in the inside VRF.
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{% for firewall in ifaces_firewall %}
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{% set metric = 100 * loop.index - 10 %}
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route-map me->peer.2 permit {{ loop.index }}
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match tag {{ loop.index }}
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on-match goto 100
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set metric {{ metric }}
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route-map peer.2->me permit {{ loop.index }}
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match metric {{ metric }}
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on-match goto 100
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set weight {{ metric }}
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{% endfor %}
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# Advertised backup routes for paths that go through the firewall
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# (default route).
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route-map me->peer.2 permit 110
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match ip address prefix-list default
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route-map me->peer.2 permit 111
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match ipv6 address prefix-list default
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# Received backup routes (same as above).
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route-map peer.2->me permit 110
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match ip address prefix-list default
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route-map peer.2->me permit 111
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match ipv6 address prefix-list default
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# These are the route maps for peerlink in the outside VRF.
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{% for firewall in ifaces_firewall %}
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{% set metric = 100 * loop.index - 10 %}
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route-map me->peer.4 permit {{ loop.index }}
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match tag {{ loop.index }}
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on-match goto 100
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set metric {{ metric }}
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route-map peer.4->me permit {{ loop.index }}
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match metric {{ metric }}
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on-match goto 100
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set weight {{ metric }}
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{% endfor %}
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# Backup routes for uplink and paths that go through the firewall
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# (default route and NAT/IPv6 addresses for office networks).
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route-map me->peer.4 permit 110
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match ip address prefix-list default
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route-map me->peer.4 permit 111
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match ipv6 address prefix-list default
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route-map me->peer.4 permit 120
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match ip address prefix-list nat
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route-map me->peer.4 permit 131
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match ipv6 address prefix-list office
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# Received backup routes (same as above).
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route-map peer.4->me permit 110
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match ip address prefix-list default
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route-map peer.4->me permit 111
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match ipv6 address prefix-list default
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route-map peer.4->me permit 120
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match ip address prefix-list nat
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route-map peer.4->me permit 131
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match ipv6 address prefix-list office
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