IPoE-server add the ability to start a session with an unclassified packet.
Currently, the session can be started only by DHCP packet start=dhcpv4
https://github.com/vyos/vyos-1x/blob/df0ef8a25f8f431ed9216b307f817a25d280acd8/data/templates/accel-ppp/ipoe.config.j2#L58
Needs to add start=up option
For sessions, start with the unclassified packet (start=up); the username is the client's IP address.
start=dhcpv4|up|auto By default is not defined. Important to set this. Parameter specifies which way session starts: dhcpv4 - start on DHCP Discover. up - unclassified packet. auto - means automatically start session with username=interface name. Use it with conjunction vlan_mon.
Proposed CLI:
set service ipoe-server interface eth1 start-session <dhcpv4|unclassified-packet>