# Copying/cloning PPPoE

## Copy GlobalOS/Spinix

* Issue dmesg command, you can clean current log by using `dmesg -c`
* Insert new flash into USB port
* Issue dmesg command again, you should see new device, for example /dev/sdb
* MAKE SURE THIS DEVICE IS NEW DEVICE! If you specify wrong one you might lose all data on it
* Use gs install to install GlobalOS on the new storage

## Configuring networking

* TBD

## Copying PPPoE related software components

You might need to use scp to copy files from one device to another. (WinSCP for Windows, but keep attention on file permissions)

### Basic PPPoE components

* accel-ppp daemon itself is included in base image, so you don't need to copy it
* copy /etc/accel-ppp.conf and adjust according to your needs, we will cover in detail later in another chapter
* /etc/add_accel_vlans.sh - script to add VLANs to accel-ppp
* Copy certain settings/commands from /etc/rc.local to your new rc.local
* /etc/firewall.cfg - firewall configuration, copy it if you need it and dont forget to adjust it
* /etc/config.json - shaper config
* /usr/local/bin/burst2d - shaper daemon

### network.cfg adjustments

* sysctl -w net.ipv4.conf.eth4/999.proxy_arp=1
Enable proxy-arp if you have real IP addresses on PPPoE shared between multiple pppoe, enable it on "WAN" interface of PPPoE

### shaper daemon startup

* Create directory for example /etc/service-burst2d
* Create file /etc/service-burst2d/run with following content:
```
#!/bin/sh
/usr/local/bin/burst2d
```
* Make it executable
* add to /etc/rc.local
```
runsv /etc/service-burst2d &
```

### accel-ppp.conf

* Allocate new subnet and route on your core router
```
[ip-pool]
gw-ip-address=10.255.255.1
attr=Framed-Pool
X.X.X.X/MASK
```
* Update dae-server (CoA) entry with new PPPoE IP
```
dae-server=Z.Z.Z.Z:1700,NASSECRETSOMETHING
```
* Make sure radius entry is correct
```
server=X.X.X.X....
```

### add_accel_vlans.sh

In old versions of script you might have fixed interface name, make sure it match interface where pppoe vlans are connected. For example eth4:
```
  ip link add link eth4 name eth4.$VLANID type vlan id $VLANID
```
Change if necessary over all script

### /etc/hosts

Make sure hosts have correct entry for localhost
```
pppoe /etc # cat /etc/hosts
127.0.0.1 localhost

```

### Preferable tuning for PPPoE

* Disable TSO, GRO, GSO for better shaper precision on ethernet and bonding interfaces
```
ethtool -K eth4 tso off gro off gso off
...
```
* Make sure gc_thresh* tuned for PPPoE
```
echo 2560 > /proc/sys/net/ipv4/neigh/default/gc_thresh1 
echo 5120 > /proc/sys/net/ipv4/neigh/default/gc_thresh2
echo 10240 > /proc/sys/net/ipv4/neigh/default/gc_thresh3
```
* conntrack max entries
```
sysctl -w net.nf_conntrack_max=2000000
```