44 lines
1.6 KiB
Markdown
44 lines
1.6 KiB
Markdown
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---
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layout: post
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title: "Internet sharing (ipv4 and ipv6) on archlinux using dnsmasq"
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date: 2014-02-08 20:02:22 +0100
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comments: true
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categories:
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- arch
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- dhcp
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- ipv6 router advertisement
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---
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A guide to connect with a different machine using a ethernet cable for
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internet sharing or just transferring files:
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1. Install dnsmasq and iproute2
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$ pacman -S dnsmasq iproute2
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2. Copy over the configuration files at the end of the article and edit the
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*/etc/conf.d/share-internet* to match your network setup.
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3. Start the sharing service with systemd
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$ sudo systemctl start internet-sharing.service
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After that the other machine can connect via dhcp. It will get an ipv4
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address from the **10.20.0.0/24** subnet and a ipv6 address from the **fd21:30c2:dd2f::**
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subnet. Your host will be reachable via **10.20.0.1** or **fd21:30c2:dd2f::1**.
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Thanks to ipv6 router advertising, an AAAA record for each host is automatically set based on the hostname.
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This means if your hostname is *foo*, all members of the network can just connect
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to it using the address *foo*. You should disable the share-internet.service, if
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you don't need it. Otherwise you might mess up network setups, if you connect to a
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network with the device on which the dhcp service is running.
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Happy networking!
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{% include_code /etc/conf.d/share-internet lang:bash share-internet/share-internet %}
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{% include_code /etc/systemd/system/share-internet.service lang:ini share-internet/share-internet.service %}
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{% include_code /etc/dnsmasq.conf lang:ini share-internet/dnsmasq.conf %}
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{% include_code /etc/dnsmasq.conf.dhcp lang:bash share-internet/dnsmasq.conf.dhcp %}
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