#EdgeRouter config example

After a lot of searching and trying I [Phil/ALS7] finnaly got a working config

I used for this example V1.9.0 on an ErPro-8

Also thanx to drathir for his patience and support


  • IPv4/IPv6 Tunnel via OpenVPN
  • dn42 DNS


–> still work in Progress

  • Basic EdgeOS knowledge is required
  • If you are using LoadBalancing make shure is under 'PRIVATE NETS'

1) you need to create all required fields in the registry –> look at Getting started

2) get a peer –> ask nice @ IRC

3) You need following data from the peer

–tunnel options, secret key –ASN from the peer –ip's

The data i used are the following:

Own ASN: AS111111
Own IPv4 Space: 172.AA.AA.64/27
Own IPv6 Space: fdBB:BBBB:CCCC::/48
Own IPv4 If-Address: 172.AA.AA.65
Own IPv6 If-Address: fdBB:BBBB:CCCC::1

Peer OpenVPN Remote Address: 172.X.X.X //that's the peers OpenVPN IF IP
Peer OpenVPN Remote Host: X.X.X.Y //that's the peers clearnet IP
Peer OpenVPN IP for you: fdAA::BBB/64
Peer OpenVPN IP: fdAA::CC
Peer OpenVPN Port: 1194
Peer OpenVPN encryption: aes256
Peer ASN: AS222222
Peer BGP Neighbour IPv4: Z.Z.Z.Z
Peer BGP Neighbour IPv6: fdAA::CC

###Copy OpenVPN key to the ErPro

copy vpn key to /config/auth/giveITaName

sudo su  
cd /config/auth  
cat > giveITaName  

now paste the key in the terminal window, hit return once and kill cat with CTRL+C
last thing to do is type exit

###Create IPv4 OpenVPN Interface

Set up Interface vtunX – i used vtun0

set interfaces openvpn vtun0  
set interfaces openvpn vtun0 mode site-to-site  
set interfaces openvpn vtun0 local-port 1194   
set interfaces openvpn vtun0 remote-port 1194  
set interfaces openvpn vtun0 local-address 172.AA.AA.65  
set interfaces openvpn vtun0 remote-address 172.X.X.X  
set interfaces openvpn vtun0 remote-host X.X.X.Y   
set interfaces openvpn vtun0 shared-secret-key-file /config/auth/giveITaName    
set interfaces openvpn vtun0 encryption aes256  

set interfaces openvpn vtun0 openvpn-option "--comp-lzo"  //if your peer support compression  


Now the ipv4 tunnel should be up&running

Check it with:

show interfaces openvpn    
show interfaces openvpn detail  
show openvpn status site-to-site  

###Create IPv4 BGP Session

####Open Firewall

  • You need to open the firewall to local for the tunnel Interface on port 179/tcp

####Configure the BGP Neighbor

  • You must not use AS before the as numbers !!

With this step you create the basic bgp session

set protocols bgp 111111 neighbor Z.Z.Z.Z remote-as 222222  
set protocols bgp 111111 neighbor Z.Z.Z.Z soft-reconfiguration inbound  
set protocols bgp 111111 neighbor Z.Z.Z.Z update-source 172.AA.AA.65  

When commit this configuration you should be able to see a BGP neighbor session start and come up.
You can check this with:

show ip bgp summary  

####Set route to blackhole

so bgp can announce the route

set protocols static route 172.AA.AA.64/27 blackhole  

####Announce prefix to BGP

set protocols bgp 111111 network 172.A.A.64/27  

You should now be able to see networks being advertised via

show ip bgp neighbors Z.Z.Z.Z advertised-routes  

###Define Nameservers

Now ping to … thats the nameserver we are using
If everything is allright it should work

####NS & NAT Config

Enter the configure mode

set service dns forwarding name-server  
set service dns forwarding name-server
set service dns forwarding options rebind-domain-ok=/dn42/ 
set service dns forwarding options server=/23.172.in-addr.arpa/  
set service dns forwarding options server=/22.172.in-addr.arpa/  
set service dns forwarding options server=/dn42/  
set service nat rule 5013 outbound-interface vtun0
set service nat rule 5013 type masquerade
set service nat rule 5013 description "masquerade for dn42"

Now try to access any .dn42 tld