Differences

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--- alternate_address [2025/01/05 15:38] – [Bent's end 2001:44b8:5135:7c07::/64] bent
+++ alternate_address [2025/01/05 16:03] (current) – [Service script] bent
@@ Line 5: / Line 5: @@
 ===== Steve's configuration using 2a06:4000:8073:1011::/64 =====
+(basically excerpts from an email)
@@ Line 28: / Line 28: @@
       ip route add default from 2001:44b8:5135:7c07::/64 dev wg0  metric 10    ===> for return traffic
       ip -6 route add 2a06:4000:8073:1011::/64 dev wg0
-Two of the three commands are easily trabsferred to Networkd configurations files but the one with 'default from' isn't. The solution chosed was to write as systemd service file. This file a listed further down. Hereis the
+Two of the three commands are easily transferred to Networkd configurations files but the one with 'default from' isn't. The solution chosen was to write a systemd service file for this. The service file is listed further down. Here is the configuration file for eth0:
+  #/etc/systemd/network/eth0.network
+  [Match]
+  Name=eth0
+  [Network]
+  Address=192.168.19.44/24
+  DNS=192.168.19.5
+  IPForward=yes
+  Address=2a06:4000:8073:19::44/64
+  Address=2001:44b8:5135:7c07::44/64
+  IPv6AcceptRA=yes
+and for the tunnel interface (wg0):
+  #/etc/systemd/network/wg0.network
+  [Match]
+  Name=wg0
+  [Network]
+  Address=10.8.3.2/24
+  IPForward=yes
+  [Route]
+  #Gateway=10.8.3.1
+  Destination=2a06:4000:8073:1011::/6
 ==== Spot ====
+Similarly the basic IP commands are:
       ip addr add dev enp2s0 2001:44b8:5135:7c07::5/64
       ip route add default from 2001:44b8:5135:7c07::/64 via 2001:44b8:5135:7c07::44 metric 10  ==> return traffic
+The 'default from' entry is again handled by a service file.
+Configuration file for enp2s0:
+  [Match]
+  Name=enp2s0
+  [Network]
+  Address=192.168.19.5/24
+  Gateway=192.168.19.254
+  Address=2a06:4000:8073:19::5/64
+  DHCP=no
+  IPv6AcceptRA=yes
+  [Address]
+  Address=2001:44b8:5135:7c07::5/64
+  PreferredLifetime=0
+(the PreferredLifetime=0 is there to prevent usein this address as source address for outgoing connections
+==== Service script ====
-IP numbers and device have been updated.
+  #/etc/systemd/system/return-route.service
-Some firewall additions may be required.....
+  [Unit]
-Does this all seem right?????
+  Description=Return route for IPv6 traffic
+  After=network-online.target
-Steve
+  [Service]
+  ExecStart=/usr/bin/ip -6 route add default from 2001:44b8:5135:7c07::/64 via 2a06:4000:8073:19::44 dev enp2s0 metric 10
+  ExecStop=/usr/bin/ip -6 route del default from 2001:44b8:5135:7c07::/64 via 2a06:4000:8073:19::44 dev enp2s0 metric 10
+  Type=oneshot
+  RemainAfterExit=yes
+  [Install]
+  WantedBy=multi-user.target
+This is the script from Spot. The one on gate-rpi is identical except for the interface name which is eth0 on gate-rpi. It doesn't have the 'via' part either.