I do not know if this is as intended or a bug.
While playing with a local BGP setup I encountered the following symptome:
R1 AS65000
vyos@vyos# show interfaces ethernet eth0 vif 666 address 2001:db8:1::1/64
vyos@vyos# show protocols bgp bgp 65000 { address-family { ipv4-unicast { network 10.0.0.0/9 { } network 10.128.0.0/9 { } } } neighbor 2001:db8:1::2 { remote-as 65001 } parameters { log-neighbor-changes router-id 172.18.254.202 } }
vyos@vyos# show protocols static route route 10.0.0.0/9 { blackhole { } } route 10.128.0.0/9 { blackhole { } }
vyos@vyos# vtysh -c "show run" Building configuration... Current configuration: ! frr version 7.0.1-20190514-01-gcd305c0 frr defaults traditional hostname LR2.wueIII.mybll.net log syslog informational agentx service integrated-vtysh-config ! ip route 10.0.0.0/9 Null0 ip route 10.128.0.0/9 Null0 ! interface bond0 description ddd ! router bgp 65000 bgp router-id 172.18.254.202 bgp log-neighbor-changes neighbor 2001:db8:1::2 remote-as 65001 ! address-family ipv4 unicast network 10.0.0.0/9 network 10.128.0.0/9 exit-address-family ! line vty ! end
R2 AS65001
vyos@vyos# show interfaces ethernet eth0 vif 666 address 2001:db8:1::2/64
vyos@vyos# show protocols bgp bgp 65001 { address-family { ipv4-unicast { network 192.168.0.0/16 { } } ipv6-unicast { network 2001:db9::/32 { } } } neighbor 2001:db8:1::1 { remote-as 65000 } parameters { log-neighbor-changes router-id 172.18.254.203 } }
vyos@vyos# show protocols static route 192.168.0.0/16 { blackhole { } } route6 2001:db9::/32 { blackhole { } }
vyos@vyos# vtysh -c "show run" Building configuration... Current configuration: ! frr version 7.0.1-20190514-01-gcd305c0 frr defaults traditional hostname LR3.wueIII.mybll.net log syslog informational agentx service integrated-vtysh-config ! ip route 192.168.0.0/16 Null0 ipv6 route 2001:db9::/32 Null0 ! router bgp 65001 bgp router-id 172.18.254.203 bgp log-neighbor-changes neighbor 2001:db8:1::1 remote-as 65000 ! address-family ipv4 unicast network 192.168.0.0/16 exit-address-family ! address-family ipv6 unicast network 2001:db9::/32 exit-address-family ! line vty ! end