Mikrotik's local network is unavailable. What could be the reason?

Question

linux

L2TP and OVPN servers are raised on the VPS. An L2TP client is up on Mikrotik. Home PC is an OVPN client. From Mikrotik, pings go to the vpn of the client. From the vpn of the client, only the L2TP interface of Mikrotik is pinged, pings do not go to the local network of Mikrotik. What's wrong?
List of interfaces on the server

eth0 - смотрит в интернет
tun0 - Openvpn туннель 10.10.10.0/24
ppp0 - l2tp туннель 10.10.11.2-10.10.11.6

Routes on the server.

netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         55.83.62.1      0.0.0.0         UG        0 0          0 eth0
55.83.62.0      0.0.0.0         255.255.255.0   U         0 0          0 eth0
10.10.10.0      0.0.0.0         255.255.255.0   U         0 0          0 tun0
10.10.11.2      0.0.0.0         255.255.255.255 UH        0 0          0 ppp0
10.10.12.0      0.0.0.0         255.255.255.0   U         0 0          0 ppp0

iptables -n -L -v --line-numbers
Chain INPUT (policy ACCEPT 14 packets, 1777 bytes)
num   pkts bytes target     prot opt in     out     source               destination         

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
num   pkts bytes target     prot opt in     out     source               destination         
1     3148  427K ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            state RELATED,ESTABLISHED
2        9  5114 ACCEPT     all  --  *      *       10.10.11.0/29        0.0.0.0/0           
3        1    84 ACCEPT     all  --  *      *       0.0.0.0/0            10.10.11.0/29      
4        0     0 TCPMSS     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            tcp flags:0x06/0x02 TCPMSS clamp to PMTU
5        0     0 DROP       all  --  *      *       0.0.0.0/0            0.0.0.0/0            state INVALID

Chain OUTPUT (policy ACCEPT 14 packets, 1620 bytes)
num   pkts bytes target     prot opt in     out     source               destination

ip_forward = 1
Routes on the OVPN client

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         0.0.0.0         0.0.0.0         U     0      0        0 ppp0
10.10.10.0      0.0.0.0         255.255.255.0   U     0      0        0 tun0
10.10.11.0      10.10.10.1      255.255.255.0   UG    0      0        0 tun0
10.10.12.0      0.0.0.0         255.255.255.0   UH    0      0        0 tun0

Tracing from vpn client to mikrotik local network

~$ traceroute 10.10.12.24
traceroute to 10.10.12.24 (10.10.12.24), 30 hops max, 60 byte packets
 1  10.10.10.1 (10.10.10.1)  47.490 ms  94.475 ms  94.491 ms
 2  10.10.11.2 (10.10.11.2)  141.637 ms  141.668 ms  141.670 ms
 3  * * *
 4  * * *

Mikrotik routes.

#      DST-ADDRESS        PREF-SRC        GATEWAY            DISTANCE
 0 ADS  0.0.0.0/0                         64.83.21.1                1
 1 ADC  64.83.21.0/22      64.83.21.12    eth1                      0
 2 X S  10.10.10.0/24                     l2tp-out1                 1
 3 ADC  10.10.11.1/32     10.10.11.2      l2tp-out1                 0
 4 ADC  10.10.12.0/24     10.10.12.1      bridge-local              0

Answer 1

If the local network in Mikrotik is behind nat, then packet forwarding should be allowed on it, well, there should be a route on the server to the Mikrotik local network, with a registered gateway, and you have it 0.0.0.0

Answer 2

traceroute 10.10.12.1 passes?