gre and openvpn layer3 interface not in kernel

kmarston · Jan 16, 2021, 11:55 AM

I am using pimd and it gets interface from the kernel
One pfsense box is working differently to the other as the pimd gets a list of interfaces from the kernel
Both have a gre0 interface but the kernel is not giving info on the gre0 at the remote end...

Here in pimd you can see it knows about both the openvpn server interface and the gre0 interface

11:48:41.272 Getting vifs from kernel
11:48:41.272 Installing le0 (192.168.0.4 on subnet 192.168) as vif #0 - rate 0
11:48:41.272 Installing le1 (10.99.1.1 on subnet 10.99.1/24) as vif #1 - rate 0
11:48:41.272 Installing ovpns1 (10.98.1.1 -> 10.98.1.2) as vif #2 - rate=0
11:48:41.272 Installing gre0 (10.97.1.1 -> 10.97.1.2) as vif #3 - rate=0
11:48:41.272 Getting vifs from /var/etc/pimd/pimd.conf

On the remote site - which actually has a more complex pfSense setup but neither the gre0 or the open vpn client interface show up:

11:52:21.953 Getting vifs from kernel
11:52:21.953 Installing vmx0 (192.168.224.128 on subnet 192.168.224/20) as vif #0 - rate 0
11:52:21.953 Ignoring vmx0 (192.168.224.87 on subnet 192.168.224/20) (alias for vif#0?)
11:52:21.953 Installing vmx1 (10.28.1.254 on subnet 10.28/16) as vif #1 - rate 0
11:52:21.953 Installing vmx2.27 (10.27.1.254 on subnet 10.27/16) as vif #2 - rate 0
11:52:21.953 Installing vmx2.23 (10.23.3.254 on subnet 10.23.2/23) as vif #3 - rate 0
11:52:21.953 Installing vmx2.24 (10.24.1.254 on subnet 10.24/16) as vif #4 - rate 0
11:52:21.953 Installing vmx2.26 (10.26.1.254 on subnet 10.26/16) as vif #5 - rate 0
11:52:21.953 Installing vmx2.111 (192.168.0.1 on subnet 192.168) as vif #6 - rate 0
11:52:21.953 Installing vmx2.3 (10.18.0.30 on subnet 10.18.0.16/28) as vif #7 - rate 0
11:52:21.953 Installing vmx2.101 (10.42.98.254 on subnet 10.42.98/23) as vif #8 - rate 0
11:52:21.953 Getting vifs from /var/etc/pimd/pimd.conf
11:52:21.953 /var/etc/pimd/pimd.conf:8 - Invalid phyint address 'ovpnc1'
11:52:21.953 /var/etc/pimd/pimd.conf:11 - Invalid phyint address 'gre0'

and the interfaces

ovpnc1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
        options=80000<LINKSTATE>
        inet6 fe80::20c:29ff:fe98:1ba6%ovpnc1 prefixlen 64 scopeid 0x12
        inet 10.98.1.2 --> 10.98.1.1 netmask 0xffffffff
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: tun openvpn
        Opened by PID 57519
gre0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1476
        options=80000<LINKSTATE>
        tunnel inet 127.0.0.1 --> 10.99.1.1
        inet 10.97.1.2 --> 10.97.1.1 netmask 0xffffff00
        inet6 fe80::20c:29ff:fe98:1ba6%gre0 prefixlen 64 scopeid 0x14
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: gre

Is this the rigth group for kernel questions