52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
# Howto add IP aliases on ppp0 in IPfire
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Let's say you have a /29 network on your DSL subscriber (dial) line: 212.218.10.64/29.
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In that case you could use six ip adresses (65 to 70) as public addresses for machines or services behind your firewall.
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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) it is not possible. But it *is* possible - and i will show you how.
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## 1.) Enable SSH access in ipfire and connect to ipfire as root.
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## 2.) Add the following lines to the file /var/ipfire/ethernet/aliases:
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```bash
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212.218.10.65,on,RED2
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212.218.10.66,on,RED3
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212.218.10.67,on,RED4
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212.218.10.68,on,RED5
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212.218.10.69,on,RED6
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212.218.10.70,on,RED7
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```
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## 3.) Create a new file (this will configure your ip addresses)
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/etc/rc.d/init.d/networking/red.up/02-aliases:
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```bash
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ip addr add 212.218.10.65/29 dev ppp0
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ip addr add 212.218.10.66/29 dev ppp0
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ip addr add 212.218.10.67/29 dev ppp0
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ip addr add 212.218.10.68/29 dev ppp0
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ip addr add 212.218.10.69/29 dev ppp0
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ip addr add 212.218.10.70/29 dev ppp0
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ip addr show ppp0
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```
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## 4.) Make it executable!
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```bash
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chmod 0755 /etc/rc.d/init.d/networking/red.up/02-aliases
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```
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## 5.) Restart your Internet connection
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READY.
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- The new ip addresses will be automatically configured every time the firewall reconnects or reboots.
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- You will see the addresses in the ipfire menu -> network -> aliases
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- You can use the new addresses in the firewall config - they will appear as RED2 - RED7
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- The warning "Aliases will not be active unless your RED interface is STATIC" can be safely ignored from now on
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Have fun ;-)
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