Any way to see IPv6 connections?

[Morac]

I’m running Merlin 384.11_2 on an AC88U. The network status page only shows IPv4 connections. Is there any way to see IPv6 ones?

Also are ivp6 connections included in the count on the tools page?

Finally is there some way to have the network connections page remember the sorting order by setting a browser cookie or something?

 

[ColinTaylor]

https://www.snbforums.com/threads/command-to-show-ipv6-remote-connections.50455/

Maybe try:

cat /proc/net/nf_conntrack

 

[Morac]

https://www.snbforums.com/threads/command-to-show-ipv6-remote-connections.50455/

Maybe try:

cat /proc/net/nf_conntrack

That works, though it’s a bit messy to read.

I’m still not sure if IPv6 is included in the Tools page connections. I tried gripping all established connections (IPv4 and IPv6) and it was slightly less than what’s on the Tools page. That also doesn’t included UDP.

 

[ColinTaylor]

I tried gripping all established connections (IPv4 and IPv6) and it was slightly less than what’s on the Tools page. That also doesn’t included UDP.

That's because UDP is a connectionless protocol.

 

[Morac]

That's because UDP is a connectionless protocol.

I know that, but I think the Tools page may be counting it since the connections on that page is larger than the number of established connections output by the command.

 

[ColinTaylor]

According to the source code it's counting ESTABLISHED connections + ASSURED udp connections (if that's the figure you're referring to).

https://github.com/RMerl/asuswrt-me...b2286/release/src/router/httpd/sysinfo.c#L268

            fp = fopen("/proc/net/nf_conntrack", "r");
            if (fp) {
                while (fgets(buf, sizeof(buf), fp) != NULL) {
                if (strstr(buf,"ESTABLISHED") || ((strstr(buf,"udp")) && (strstr(buf,"ASSURED"))))
                    established++;
                }
                fclose(fp);
            }
            sprintf(result,"%u",established);