Known Issues - D-Link DIR-868L User Manual

Known Issues

Bad WiFi drivers
DD-WRT has multiple issues with WiFi firmware.
WiFi connect slow: you might experience slowness connecting your device to the AP. On Android it
•
always hangs at "Obtaining IP address" for ~10 seconds.
• Link speed: the link speed on DD-WRT is not high as stock is. For example: DD-WRT has a link
speed for 5GHz of 200Mbit/s, on stock it is 433Mbit/s. Same goes for the 2.4GHz band.
• 5GHz band issue: the 5GHz band might not pop up when you search for WiFi networks on your
device, it will take ~10 seconds to show up to even be able to connect to it.
OpenVPN
If using the inbuilt OpenVPN-server in tunnel-mode, you may need to use the following firewall rules:
iptables -A INPUT -i vlan2 -m state --state NEW -p udp --dport 1194 -j ACCEPT
iptables -A INPUT -i tun2 -j ACCEPT
iptables -A FORWARD -i tun2 -j ACCEPT
iptables -A FORWARD -i tun2 -o vlan2 -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i vlan2 -o tun2 -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o vlan2 -j MASQUERADE
Note 1: Verify that the interfaces are correct by running the ifconfig command
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• Note 2: You may need to adjust the above IP-address (& netmask)
The following Additional DNSMasq Options may also be needed, to stop DHCP(-service) on the tunnel-port:
interface=tun2
no-dhcp-interface=tun2
D-Link DDNS
D-Link offers router owners a free dynamic DNS host name service. This service works (surprisingly) without
any problems on the dd-wrt firmware:
DDNS Service
Username
Password
Hostname
Type
Known Issues
D-Link_DIR-868L
DynDNS.org
Your username (no
email-address)
Your Password
<hostname>.dlinkddns.com
Dynamic
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