If WAN0/WAN1 don't correlate to eth0/eth1, why would that be? Do you think people are manually manipulating which eth# they're linking things to? Can you think of any instances where this is happening? Nothing to do with different router models, right?
nvram get wan0_ifname
This script has code to determine if dual-wan is active, which mode, and which ifname.
github.com
As an example, the AX58U uses eth4 for wan. You never know…
try out
ip a | grep globalip a | grep global | grep -E '\b.*eth.*\b'I'm thinking, if I query "nvram get wan0_ifname", it should spit back "eth4" for example in the case of an AX58U.This script has code to determine if dual-wan is active, which mode, and which ifname.
asuswrt-merlin.ng/release/src/router/rom/apps_scripts/getrealip.sh at master · RMerl/asuswrt-merlin.ng
Third party firmware for Asus routers (newer codebase) - RMerl/asuswrt-merlin.ng
As an example, the AX58U uses eth4 for wan. You never know…
At least not for AC86U.
www.snbforums.com
ip a | grep global | grep -oE '\beth.*\b'route | grep default | grep -oE '\beth.*\b'That gives me eth0
Unless pppoe is in use. Then you need wan0_pppoe_ifname. I was surprised how complicated it can get.
That's great info... thanks for validating that eth1 == port4At least not for AC86U.
RT-AC86U Interfaces
Hi Community, I was wondering if anyone knows what the following interfaces are used for (I provided what I think they are but would like confirmation/clarification): bcmsw br0 -->Bridge interface: Does all traffic flow through this interface? eth0 -->This is for internet traffic I think...
isn't that dependent on the router model as well?
My point is there is more than one way to awnser your question. Some of the other ways don't have the limitation of nvram variable names.
route | grep default | awk '{ print $8 }'OMG... can't things ever be straighforward! LOL
What are you gonna do once you know the interface name?
Ppp user here
dmin@RT-AC86U-DBA8:/tmp/home/root# ip a | grep global | grep -oE '\beth.*\b'
admin@RT-AC86U-DBA8:/tmp/home/root# route | grep default | awk '{ print $8 }'
ppp0
admin@RT-AC86U-DBA8:/tmp/home/root#
Letting the cat out of the bag here before 1.5 goes live...
try
ip a | grep global | awk '{ print $7 }' | head -n 1I will be sure to test for this... thanks for the heads-up!
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