#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
##Features
- IPv4/IPv6 Tunnel via OpenVPN
- dn42 DNS
##How-To
–> still work in Progress
- Basic EdgeOS knowledge is required
- If you are using LoadBalancing make shure 172.20.0.0/14 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
configure
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
commit
save
exit
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
configure
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
commit
save
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
commit
save
####Announce prefix to BGP
set protocols bgp 111111 network 172.A.A.64/27
commit
save
exit
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 172.23.0.53 … thats the nameserver we are using
If everything is allright it should work
####NS & NAT Config
Enter the configure mode
configure
set service dns forwarding name-server 8.8.8.8
set service dns forwarding name-server 8.8.4.4
set service dns forwarding options rebind-domain-ok=/dn42/
set service dns forwarding options server=/23.172.in-addr.arpa/172.23.0.53
set service dns forwarding options server=/22.172.in-addr.arpa/172.23.0.53
set service dns forwarding options server=/dn42/172.23.0.53
set service nat rule 5013 outbound-interface vtun0
set service nat rule 5013 type masquerade
set service nat rule 5013 description "masquerade for dn42"
commit
save
exit
Now try to access any .dn42 tld