Posted: Fri Feb 11, 2011 8:16 Post subject: Port forwarding and IP number wildcards
Using: Firmware: DD-WRT v24-sp2 (12/18/10) std on a WNDR3700
Would it be possible to enter Source Net IP wildcards under NAT/QoS -> Port Forwarding to only let traffic through to the inside if you are receiving traffic from your VPN provider only?
My provider assigns me IP s dynamically in the 92.182.***.*** range. Would be handy to be able to enter Source Net IP like that and have the router deny traffic from any other Source Net IP s to prevent identity leakage when VPN disconnects.
The source net field accepts netmasks in CIDR notation such as 92.182.0.0/16, but there is a minor bug in that the GUI limits it to 15 characters total so if you have a bunch of triple digit octets then it might not fit. _________________ Read the forum announcements thoroughly! Be cautious if you're inexperienced.
Available for paid consulting. (Don't PM about complicated setups otherwise)
Looking for bricks and spare routers to expand my collection. (not interested in G spec models)
The source net field accepts netmasks in CIDR notation such as 92.182.0.0/16, but there is a minor bug in that the GUI limits it to 15 characters total so if you have a bunch of triple digit octets then it might not fit.
I just looked up CIDR notation on Wikipedia and couldn't quite understand it. Let's say I want to let in all addresses in 100.100.***.*** -- how would I write this? 100.100.0.0/something, I figure...thanks.
CIDR notation is just the number of bits in the subnet mask that are set. The /16 in my example corresponds to a netmask of 255.255.0.0. If you don't understand then use a netmask calculator. _________________ Read the forum announcements thoroughly! Be cautious if you're inexperienced.
Available for paid consulting. (Don't PM about complicated setups otherwise)
Looking for bricks and spare routers to expand my collection. (not interested in G spec models)
The source net field accepts netmasks in CIDR notation such as 92.182.0.0/16, but there is a minor bug in that the GUI limits it to 15 characters total so if you have a bunch of triple digit octets then it might not fit.
I just ran in to this bug, did a Google search and found this post from 2011.
Any chance for a bug fix here or steps to manually update this info?
