diff --git a/docs/en_US/guide/pve_kvm.md b/docs/en_US/guide/pve_kvm.md
index 1a597581f4..7dbe0f17c1 100644
--- a/docs/en_US/guide/pve_kvm.md
+++ b/docs/en_US/guide/pve_kvm.md
@@ -120,6 +120,11 @@ qm stop 102
 qm destroy 102
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 rm -rf vm102
@@ -162,6 +167,11 @@ After the setup is completed, you can execute ```cat vmlog``` to view the inform
 for vmid in $(qm list | awk '{if(NR>1) print $1}'); do qm stop $vmid; qm destroy $vmid; rm -rf /var/lib/vz/images/$vmid*; done
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 rm -rf vmlog
diff --git a/docs/en_US/guide/pve_lxc.md b/docs/en_US/guide/pve_lxc.md
index 45ab977c35..0bc4acfc7b 100644
--- a/docs/en_US/guide/pve_lxc.md
+++ b/docs/en_US/guide/pve_lxc.md
@@ -92,6 +92,11 @@ pct destroy 102
 rm -rf ct102
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 ```
@@ -133,6 +138,11 @@ pct list | awk 'NR>1{print $1}' | xargs -I {} sh -c 'pct stop {}; pct destroy {}
 rm -rf ct*
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 ```
diff --git a/docs/en_US/guide/pve_qa.md b/docs/en_US/guide/pve_qa.md
index a6b7cda789..bdf70af881 100644
--- a/docs/en_US/guide/pve_qa.md
+++ b/docs/en_US/guide/pve_qa.md
@@ -31,6 +31,22 @@ The system username after dd at this point is ```root```, and the password is ``
 
 If you have time or if it's still not working, please contact [@spiritlhl_bot](https://t.me/spiritlhl_bot) for assistance.
 
+## What to do if you accidentally delete a NAT mapping rule
+
+Use the following command to map back
+
+```shell
+iptables -t nat -F
+iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
+service networking restart
+systemctl restart networking.service
+```
+
 ## Verified VPS Providers
 
 ### VPS Providers Offering KVM Virtualization with NAT
diff --git a/docs/guide/pve_kvm.md b/docs/guide/pve_kvm.md
index 23544b6730..8304a137d6 100644
--- a/docs/guide/pve_kvm.md
+++ b/docs/guide/pve_kvm.md
@@ -135,6 +135,11 @@ qm stop 102
 qm destroy 102
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 rm -rf vm102
@@ -184,6 +189,11 @@ curl -L https://ghproxy.com/https://raw.githubusercontent.com/spiritLHLS/pve/mai
 for vmid in $(qm list | awk '{if(NR>1) print $1}'); do qm stop $vmid; qm destroy $vmid; rm -rf /var/lib/vz/images/$vmid*; done
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 rm -rf vmlog
diff --git a/docs/guide/pve_lxc.md b/docs/guide/pve_lxc.md
index e824395ae3..186dc5cdf3 100644
--- a/docs/guide/pve_lxc.md
+++ b/docs/guide/pve_lxc.md
@@ -96,6 +96,11 @@ pct destroy 102
 rm -rf ct102
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 ```
@@ -144,6 +149,11 @@ pct list | awk 'NR>1{print $1}' | xargs -I {} sh -c 'pct stop {}; pct destroy {}
 rm -rf ct*
 iptables -t nat -F
 iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
 service networking restart
 systemctl restart networking.service
 ```
diff --git a/docs/guide/pve_qa.md b/docs/guide/pve_qa.md
index 841fc82f4b..63400b6ffa 100644
--- a/docs/guide/pve_qa.md
+++ b/docs/guide/pve_qa.md
@@ -31,6 +31,22 @@ bash <(curl -sSL https://raw.githubusercontent.com/leitbogioro/Tools/master/Linu
 
 如果有空或者还是不行，请联系 [@spiritlhl_bot](https://t.me/spiritlhl_bot) 尝试
 
+## 不小心删除了NAT的映射规则怎么办
+
+使用下面的命令映射回来
+
+```shell
+iptables -t nat -F
+iptables -t filter -F
+iptables -t nat -A POSTROUTING -s 172.16.1.0/24 -o vmbr0 -j MASQUERADE
+ip6tables -t nat -F
+ip6tables -t nat -A POSTROUTING -s 2001:db8:1::/64 -o vmbr0 -j MASQUERADE
+iptables-save > /etc/iptables/rules.v4
+ip6tables-save > /etc/iptables/rules.v6
+service networking restart
+systemctl restart networking.service
+```
+
 ## 目前已验证的VPS商家
 
 ### 可开设KVM虚拟化的NAT的商家