hpr3799 :: My home router history
Recent router maintenance makes me remember all the fun I've had with my home network router
Hosted by norrist on 2023-02-23 is flagged as Clean and is released under a CC-BY-SA license.
openbsd, ansible, router.
2.
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general.
Router History
Early Dialup
- Connection sharing
DSL/Cable
- Linux PC with 2 NIC
- Set up IP masquerading
- Windows connection sharing
- This may have been against TOS
- $50 EBay PC
- Mandrake MNF
Found a PC on the Street
- IPCop
- Infrequently updated
- No updates required or abandoned?
OpenBSD
- Reputation for Security
- Something New
- Good instructions for setting up home office.
- Manual but straightforward
WRT-54gl with tomato
- Linksys router sold specifically to run Linux
- Purchased to be AP
- Junk PC hardware failures - PSU or IDE disks
- Frequently used as backup.
PCEngines Alix
- Basically a PC in a router form factor
- Serial port - NO VGA
- No USB boot - Had to set up PXE boot tftp server.
- Install OpenBSD
- No Video out - Serial port only
- Expensive for specs - 500MHz AMD CPU and 256M Ram
Alix Limitations
- Worked great for a few years
- Compact Flash limited replacements.
- 100M Ethernet
- Found Spare on EBay as Backup, just in case.
PCEngines APU2
- Serial only
- OpenBSD 5.6 via USB drive
- 3 NIC - Lan, Trusted, Untrusted
- Unifi AP for WiFi
First playbook
- Missing some easy management
- Local DNS
- DHCP Reservations
- http://hackerpublicradio.org/eps.php?id=3187
- CSV file with IP,MAC, Hostname
- DHCP reservation and local DNS
Restricting Internet
- Open DNS and port redirects
- Unbound included on OpenBSD base
- Caching DNS resolver
- Forward to Open DNS - Set to do some content filtering
- PF rule to redirect all incoming port 53 to unbound
- PF scripts
- PF table with IP addresses of devices
- Table always blocked
- cron jobs to add/remove IP addresses to table
APU2 limitations
- Installer Recommends Auto partitioning
- Doesn't know how you plan to use OpenBSD
- Doesn't know the future plans for project.
- 16G msata drive
- Small /usr
- Re-linking growth
- Moving src partitions
PCEngines APU2
- Search /etc for changes
- Ansible Playbook for everything not covered by DNS/DHCP playbook
- email forwarding
- sysctls
- syslog to server
- Practice on OpenBSD VM
- 198.168 172.20 as variable
- Normally with VM, I use the VirtIO NIC
- I used vitalized Intel NIC so same device names: em0, em1, ...
Just Do It
- Update APU firmware - TODO retails
- /usr/local/share/doc/pkg-readmes/flashrom
- Warned family internet would be offline a few hours
- Replaced M2 Sata card with 120
- It worked the first time
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