two years I used a Koppel firmware, but because
some limitations (old kernel 2.4.20, some issues
with 3G modems, ftdi drivers, usb webcam drivers),
I switched to OpenWrt and then DD-WRT.
At last I am using the renewed Oleg's firmware
(WL500gp-220.127.116.11-d-r2624.trx; Kernel 18.104.22.168)
I like it and has some improvements.
It recognize easily 3G modems as ZTE MF637,
connects to Internet through it; also the
firmware has System Utilization (in GUI),
a nice feature.
I liked the Koppel's firmware, GUI:
---USB Connection and Backup Connection---
* Setup [enable backup connection],
* IP address [Primary, Secondary IP for ping tests],
* Time [time in minutes for ping testing cycle],
* Primary [wired, WAN], Backup [radio, GPRS/EDGE/UMTS],
mean: if the primary connection failed, the backup
connection takes over.
I have a question: does someone are using this renewed
Oleg's firmware and has a script that switch automatically
the connections in case of failure (and switch back to
wired connection when it's available again) ?
I've noticed that with this version (in GUI)
I can only manually switch the connections
[IP Config - WAN & LAN: Automatic IP, Static IP,
PPPoE, PPPTP, L2TP, BigPond, WiMAX, USB Modem]
and has no special page in the tree e.g. backup connection.
That's all, thank you for any ideas.
(sorry, last time I pasted a different link here)
and I think also would be a problem if let's say I switch to another wan adapter and I offer services over wan as tftp
serving a cisco router in upstream [with r/w rights to save it's configurations] and/or run onto asus router syslog-ng,
snmpd and snmptrapd.
If I am in trouble with iptables I can double the lines for each wan adapter (openvpn) like:
iptables -t nat -I PREROUTING -i vlan1 -p udp --dport 1194 -j DNAT --to-destination `nvram get wan0_ipaddr`:1194
iptables -t nat -I PREROUTING -i vlan1 -p udp --dport 1194 -j DNAT --to-destination `nvram get wan_modem_ipaddr`:1194
BTW: I've noticed that this renewed Oleg firmware has different names
for wan addapters than Koppel's as: wan is now wan0,
modem's is wan0_modem, wimax's is wan0_wimax and so on...
just check it all with nvram show | sort >nvram.txt
The other part is switching "on the fly" the 3G modem from storage
to modem (I'm not so experienced with it)...
Last edited by fukushimaku; 09-04-2011 at 23:43.
By bridging both interfaces WAN-eth and WAN-3G and then binding all services to it can be a solution. In other words firewall, FTP, WEB servers, etc. will be using the bridged WAN interface.