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Michael H.G. Schmidt 2023-07-21 22:59:40 +02:00
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25
migrate/ipfire_ipalias.txt → migrate/ipfire_ipalias.md
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@ -1,25 +1,29 @@
====== Howto add IP aliases on ppp0 in IPfire ======
# Howto add IP aliases on ppp0 in IPfire
Let's say you have a /29 network on your DSL subscriber (dial) line: 212.218.10.64/29.
In that case you could use six ip adresses (65 to 70) as public addresses for machines or services behind your firewall.
According to this [[https://community.ipfire.org/t/adding-aliases-to-red-interface/552|thread]] and this [[https://community.ipfire.org/t/a-red-interface-in-pppoe-and-have-two-public-ip/8014|thread]] it is not possible. But it is possible - and i will show you how.
According to this [thread](https://community.ipfire.org/t/adding-aliases-to-red-interface/552) and this [thread](https://community.ipfire.org/t/a-red-interface-in-pppoe-and-have-two-public-ip/8014|thread) it is not possible. But it *is* possible - and i will show you how.
1.) Enable SSH access in ipfire and connect to ipfire as root.
2.) Add the following lines to the file /var/ipfire/ethernet/aliases:
## 1.) Enable SSH access in ipfire and connect to ipfire as root.
## 2.) Add the following lines to the file /var/ipfire/ethernet/aliases:
```bash
212.218.10.65,on,RED2
212.218.10.66,on,RED3
212.218.10.67,on,RED4
212.218.10.68,on,RED5
212.218.10.69,on,RED6
212.218.10.70,on,RED7
```
3.) Create a new file (this will configure your ip addresses)
## 3.) Create a new file (this will configure your ip addresses)
/etc/rc.d/init.d/networking/red.up/02-aliases:
```bash
ip addr add 212.218.10.65/29 dev ppp0
ip addr add 212.218.10.66/29 dev ppp0
ip addr add 212.218.10.67/29 dev ppp0
@ -27,12 +31,15 @@ According to this [[https://community.ipfire.org/t/adding-aliases-to-red-interfa
ip addr add 212.218.10.69/29 dev ppp0
ip addr add 212.218.10.70/29 dev ppp0
ip addr show ppp0
```
4.) Make it executable!
## 4.) Make it executable!
chmod 0755 /etc/rc.d/init.d/networking/red.up/02-aliases
```bash
hmod 0755 /etc/rc.d/init.d/networking/red.up/02-aliases
```
5.) Restart your Internet connection
## 5.) Restart your Internet connection
READY.
@ -41,4 +48,4 @@ READY.
- You can use the new addresses in the firewall config - they will appear as RED2 - RED7
- The warning "Aliases will not be active unless your RED interface is STATIC" can be safely ignored from now on
Have fun ;-)
Have fun ;-)

12
migrate/ipfire_ipalias_green.txt → migrate/ipfire_ipalias_green.md
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====== Howto add a IP alias on the "green" interface in IPfire ======
# Howto add a IP alias on the "green" interface in IPfire
Let's say you have a an internal /24 network and you want to add a secondary (local) IP address (this could be useful in case you remove an old machine from the network and your new firewall is on a different address - but your new firewall should offer on of it's services on the old address).
In the ipfire GUI this is not possible. But you can use the file "rc.local" (which is executed while the firewall boots).
1.) Add the following lines to the file /etc/sysconfig/rc.local:
## 1.) Add the following lines to the file /etc/sysconfig/rc.local:
```bash
ip addr add 192.168.89.1/24 dev green0
ip addr show green0
```
2.) Make it executable:
## 2.) Make it executable:
```bash
chmod 0755 /etc/sysconfig/rc.local
```
3.) Reboot your firewall or execute the script manually
## 3.) Reboot your firewall or execute the script manually
READY.