Protocol IS-IS configuration is empty
To reproduce:
set interfaces dummy dum0 address '203.0.113.254/32' set interfaces dummy dum0 description 'dum0' set interfaces ethernet eth1 address '192.0.2.5/24' set interfaces ethernet eth1 description 'LAN' set interfaces tunnel tun0 address '10.0.0.2/30' set interfaces tunnel tun0 description 'tun-to-192.0.2.1' set interfaces tunnel tun0 encapsulation 'gre' set interfaces tunnel tun0 source-address '192.0.2.5' set protocols isis interface eth1 set protocols isis interface tun0 set protocols isis lsp-mtu '1460' set protocols isis net '49.0001.1920.0200.0011.00' set protocols isis redistribute ipv4 connected level-2
Check:
vyos@r1# vtysh -c "show run isisd" Building configuration... Current configuration: ! hostname r1 service integrated-vtysh-config ! end [edit] vyos@r1#
The thing is, there is no ip remote address for the tunnel tun0
If we add the remote address and re-configure protocol isis, the configuration looks good again
set interfaces tunnel tun0 remote '192.0.2.1'