I have been running 1.4.6 on Linux for a couple of years and decided to upgrade to 1.8.6. After the upgrade I can’t ping anything.
With wireshark I can see broadcast traffic on the ZT interface and I can see that other nodes are sending ARP requests, which the upgraded node is not responding to.
The interface created by ZT looks like:
ztxxxxxxxx Link encap:Ethernet HWaddr 4X:XX:XX:XX:XX:XF inet addr:10.147.20.15 Bcast:10.147.20.255 Mask:255.255.255.0 inet6 addr: fe80::xxxx:xxxx:xxxx:xxxx/64 Scope:Link UP BROADCAST NOTRAILERS RUNNING NOARP ALLMULTI MULTICAST MTU:2800 Metric:1 RX packets:624 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:39601 (38.6 KiB) TX bytes:4036 (3.9 KiB)
If I run “ifconfig ztxxxxxxxx arp” things start working immediately. So why is the new ZT version creating the interface with “NOARP”?