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--- vpn_site2site_usando_zerotier_con_bridge_en_lxc [2024/10/28 14:28] – [Step 10: Enable Traffic Routing and Masquerading (if needed)] oso
+++ vpn_site2site_usando_zerotier_con_bridge_en_lxc [2025/07/10 15:41] (current) – oso
@@ Line 107: / Line 107: @@
 ----
-===== About the IPTables Setup =====
-**Summary of IPTables Configuration for Gateway Setup**
-We configured IPTables to allow `srv05` to act as a gateway between the `10.241.0.0/16` network (Zerotier subnet) and `192.168.88.0/24` (homelab subnet). Key adjustments included using network addresses rather than specific interface names to facilitate flexible routing and translation between subnets.
-### IPTables Rules Configuration
-The configuration is as follows:
-<code>
-# Generated by iptables-save v1.8.10 (nf_tables) on Sun Oct 27 21:46:33 2024
-*filter
-:INPUT ACCEPT [27860:3271118]
-:FORWARD ACCEPT [0:0]
-:OUTPUT ACCEPT [0:0]
--A INPUT -p tcp -m tcp --dport 6162 -m comment --comment "Veeam transport rule" -j ACCEPT
--A INPUT -p tcp -m tcp --dport 6160 -m comment --comment "Veeam deployment rule" -j ACCEPT
-COMMIT
-*nat
-:PREROUTING ACCEPT [0:0]
-:INPUT ACCEPT [0:0]
-:OUTPUT ACCEPT [0:0]
-:POSTROUTING ACCEPT [0:0]
--A POSTROUTING -o lxcbr0 -s 10.241.0.0/16 -j SNAT --to-source 192.168.88.84
-COMMIT
-*filter
-:INPUT ACCEPT [0:0]
-:FORWARD DROP [0:0]
--A FORWARD -s 10.241.0.0/16 -d 192.168.88.0/24 -j ACCEPT
--A FORWARD -s 192.168.88.0/24 -d 10.241.0.0/16 -j ACCEPT
-:OUTPUT ACCEPT [0:0]
-COMMIT
-</code>
-==== Notes ====
-  * **Routing**: By using network address-based rules instead of specific interfaces, the configuration is more adaptable to interface changes, simplifying maintenance.
-  * **SNAT Rule**: The <code>POSTROUTING</code> rule in the <code>*nat</code> table ensures that traffic originating from the `10.241.0.0/16` network and routed through `lxcbr0` is translated to the source IP `192.168.88.84`.
-  * **Unprivileged LXC Consideration**: If switching to unprivileged LXC containers, additional permissions or network namespace adjustments may be required, as unprivileged containers have restricted access to networking by default.