Ping: sendto: no buffer space available



  • Hi.
    I'm having a strange problem on my pfSense system.
    I configured the LAN and the WAN interface, and the cable are working without any problems.
    The LAN network is working good, but the WAN network not.
    If I ping the default gateway or an external host I obtain the following error:

    
    [root@fw]/root(2): ping 8.8.8.8
    PING 8.8.8.8 (8.8.8.8): 56 data bytes
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    
    [root@fw]/root(3): ping 123.123.123.89
    PING 123.123.123.89 (123.123.123.123): 56 data bytes
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    ping: sendto: No buffer space available
    
    

    If I try to ping another host on the WAN network, all work good:

    
    [root@fw.radiodolomiti.local]/root(4): ping 123.123.123.90
    PING 123.123.123.90(213.21.190.90): 56 data bytes
    64 bytes from 123.123.123.90: icmp_seq=0 ttl=64 time=0.113 ms
    64 bytes from 123.123.123.90: icmp_seq=1 ttl=64 time=0.107 ms
    64 bytes from 123.123.123.90: icmp_seq=2 ttl=64 time=0.110 ms
    64 bytes from 123.123.123.90: icmp_seq=3 ttl=64 time=0.111 ms
    
    

    The network on the WAN interface is 123.123.123.88/255.255.255.248.
    The Internet connection is not working, of course.

    Could you help to understand and solve this problem, please?

    Thank you very much!
    Bye.


  • Rebel Alliance Developer Netgate

    Usually that indicates that it can't send traffic there. Either because it doesn't have permission (blocked by firewall rules) or perhaps because it doesn't have a default route going that way.


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