Odd---Can't access SB8200 Modem admin console (port 80), but Can access Spectrum analyzer (8080)

[phillyaj]

Ok...I know this isn't a direct ASUS AX question...but the Best people hang out here . Here's the deal. I have an Arris SB8200 modem behind my AX86U. I would like to log into the admin console of the SB8200 (192.168.100.1), but can't seem to get connected via port 80. I can however access the spectrum analyzer (192.168.100.1: 8080) just fine. I know it works because I was able to access it when I connected my computer directly to the modem. My LAN is on 192.168.0.xx . Any ideas?

 

[ColinTaylor]

Which firmware are you using?

 

[phillyaj]

Which firmware are you using?

9.0.0.4.386_41157 (386 RC2 Beta)..but don't think it's related. Had the same issue with stock firmware.

 

[ColinTaylor]

9.0.0.4.386_41157 (386 RC2 Beta)..but don't think it's related. Had the same issue with stock firmware.

I was asking because to make a permanent change you would need to be using Merlin's firmware. But to test the common solution to this problem SSH into your router and issue the following command. Then see if you can access the modem at http://192.168.100.1

ifconfig $(nvram get wan0_ifname):0 192.168.100.2 netmask 255.255.255.0

 

[phillyaj]

I was asking because to make a permanent change you would need to be using Merlin's firmware. But to test the common solution to this problem SSH into your router and issue the following command. Then see if you can access the modem at http://192.168.100.1

ifconfig $(nvram get wan0_ifname):0 192.168.100.2 netmask 255.255.255.0

Hmm...I saw what you're doing there....but alas...it didn't work. Here's my route info.

Destination Gateway Genmask Flags Metric Ref Use Type Iface
default 99.99.99.1 0.0.0.0 UG 0 0 0 WAN0 eth0
99.99.99.0 * 255.255.252.0 U 0 0 0 WAN0 eth0
99.99.99.1 * 255.255.255.255 UH 0 0 0 WAN0 eth0
192.168.0.0 * 255.255.255.0 U 0 0 0 LAN br0
192.168.100.0 * 255.255.255.0 U 0 0 0 WAN0 eth0
239.0.0.0 * 255.0.0.0 U 0 0 0 LAN br0


(Note...the 99.99.99.x was modified to protect the innocent)

 

[ColinTaylor]

You could try this method, although I don't really regard it as a viable solution. Similar to the the previous suggestion this method involves changing your primary WAN address to 192.168.100.2 (in your case). In theory this should be exactly the same as plugging a PC directly into the modem.