I have a DSL modem and a LEDE and CeroWrt/OpenWrt router. I can't ping the DSL modem when connected to the "second router". They're hooked up like this:
+---------------+ +---------------+ +-------------+
| Second Router | WAN | First Router | WAN | DSL Modem |
| 192.168.254.1 | ------- | 192.168.253.1 | --------- | 192.168.1.1 | ------ The Internet
| WAN DHCP is | LAN | WAN DHCP is | LAN +-------------+
| 192.168.253.5 | | 192.168.1.2 |
+---------------+ +---------------+
When connected to "First Router" (LEDE 17.01.0) via wifi or ethernet, I can ping the DSL modem at 192.168.1.1, as well as connecting to anything on the internet.
When connected to "Second Router" (CeroWrt 3.10.50-1) either way, I connect out to the internet just fine, but ping 192.168.1.1 gives ping: sendto: Operation not permitted
I had thought that the default gateway would handle this. Here is the output from route on both routers. What other information should I provide to diagnose this? Thanks!
#First Router
#root@LEDE:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
192.168.253.0 * 255.255.255.0 U 0 0 0 br-lan
192.168.254.0 192.168.253.5 255.255.255.0 UG 0 0 0 br-lan
# Second Router
# root@cerowrt:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.253.1 0.0.0.0 UG 0 0 0 ge00
172.30.42.0 * 255.255.255.0 U 0 0 0 se00
172.30.42.96 * 255.255.255.224 U 0 0 0 sw10
192.168.253.0 * 255.255.255.0 U 0 0 0 ge00
192.168.254.0 * 255.255.255.224 U 0 0 0 sw00