vm network is lost after reboot network

[Khoi]

Hi guys,
I setup Proxmox nat to private network as bellow. Everything is ok, but when I service networking restart. I cannot reach my vm via public IP. Pls help me or suggest me other solutions. Thnk you much.

auto bond0
iface bond0 inet manual
slaves eno1 eno2
bond_miimon 100
bond_mode 802.3ad
bond_xmit_hash_policy layer2+3
auto vmbr0
iface vmbr0 inet static
address 1.1.1.259
netmask 255.255.255.0
gateway 1.1.1.1
bridge_ports bond0
bridge_stp off
bridge_fd 0
auto vmbr1
iface vmbr1 inet static
address 192.168.1.1
netmask 255.255.255.0
bridge_ports none
bridge_stp off
bridge_fd 0
# post-up echo 1 > /proc/sys/net/ipv4/ip_forward
# post-up iptables -t nat -A POSTROUTING -s '192.168.1.0/24' -o vmbr0 -j MASQUERADE
# post-down iptables -t nat -D POSTROUTING -s '192.168.1.0/24' -o vmbr0 -j MASQUERADE
# post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 2222 -j DNAT --to 192.168.1.2:22
# post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 2222 -j DNAT --to 192.168.1.2:22

 

[Stoiko Ivanov]

in the posted config it looks like the post-up/post-down rules are commented out - you would need them to have working network connectivity in a natted environment:
https://pve.proxmox.com/wiki/Network_Model