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laforge, 01/01/2020 08:13 PM
- Table of contents
- Dialup Network In A Box
Dialup Network In A Box¶
This is a self-contained, portable telephony network which allows us to connect and analog modems and ISDN adapters at retrocomputing events.
The setup (as of Q4/2019) consists of:- Auerswald COMmander Basic2 PBX with 8x S0 (ISDN BRI) ports, 16x a/b (analog) ports, 8x Up0 (ISDN) ports and 1x S2M (E1 ISDN PRI)
- 1U Rack-Mount Atom PC with 4-port E1 (DAHDI) card and FreeSwitch: Emulates public telephone exchange
- Livingston Portmaster 3 RAS with ability to terminate 30 ISDN or analog modem calls
Telephony Setup¶
The physical setup looks like this:
Logical Setup:¶
This shows the logical setup including PCs and associated software:
Pictures¶
Ethernet Switch configuration¶
We have an old 16-port gigabit ethernet switch (DELL PowerConnect 2716) in our setup.
VLAN 1 (admin)¶
- Port 1: untagged
- Port 7: PC eth1 (tagged)
- Port 8: admin laptop (tagged)
VLAN 11 (admin)¶
This is a "jumper" from VLAN 1 (untagged) to VLAN 11 (tagged) as the switch doesn't natively support its web interface on a tagged IP
- Port 4: untagged
- Port 7: PC eth1 (tagged)
- Port 8: admin laptop (tagged)
VLAN 3999 (uplink)¶
- Ports 9..16
- Port 8: admin laptop (tagged)
VLAN 4000 (auerswald)¶
- Port 2: Auerswald (untagged)
- Port 7: PC eth1 (tagged)
- Port 8: admin laptop (tagged)
VLAN 4001 (PM3)¶
- Port 3: PM3 (untagged)
- Port 7: PC eth1 (tagged)
- Port 8: admin laptop (tagged)
IP Network configuration¶
VLAN 1/11 (admin)¶
IP | Host |
---|---|
192.168.2.1 | dell2716 switch |
192.168.2.100 | admin laptop |
192.168.2.254 | atom1u |
VLAN 3999 (uplink)¶
IP | Host |
---|---|
DHCP | atom1u |
VLAN 4000 (auerswald)¶
IP | Host |
---|---|
192.168.0.240 | Auerswald Commander Basic2 |
192.168.0.254 | atom1u |
VLAN 4001 (PM3)¶
IP | Host |
---|---|
192.168.3.1 | Livingston Portmaster 3 |
192.168.3.100 | telnet/rlogin host (atom1u) |
192.168.3.254 | default-gw (atom1u) |
192.168.4.0/24 | PPP lease pool |
Updated by laforge about 4 years ago · 5 revisions