[Kea-users] ERROR DHCP4_PACKET_SEND_FAIL

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[Kea-users] ERROR DHCP4_PACKET_SEND_FAIL

Fredrik V
Hi,

Found this message in syslog and I cant figure out whats going on. 

Jan 26 11:47:40 kea-dhcp01 kea-dhcp4: ERROR DHCP4_PACKET_SEND_FAIL [hwtype=1 00:02:ab:12:d2:fe], cid=[00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:32:2d:66:65], tid=0x3219188d: failed to send DHCPv4 packet: pkt4 send failed: sendmsg() returned  with an error: Permission denied

Here is the DHCPREQUEST. We get the request. We do not send any kind reply. 

What is causing the Permission denied?

root@kea-dhcp01:/var/lib/kea# dhcpdump -i ens192 -h 00:02:ab:12:d1:78
  TIME: 2021-01-26 10:39:20.565
    IP: xxx.160.93.131 (78:ba:f9:2f:3:d6) > xxx.233.57.226 (0:50:56:86:c9:a1)
    OP: 1 (BOOTPREQUEST)
 HTYPE: 1 (Ethernet)
  HLEN: 6
  HOPS: 0
   XID: 61f7346a
  SECS: 1899
 FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 00:02:ab:12:d1:78:00:00:00:00:00:00:00:00:00:00
 SNAME: .
 FNAME: .
OPTION:  53 (  1) DHCP message type         3 (DHCPREQUEST)
OPTION:  57 (  2) Maximum DHCP message size 1024
OPTION:  55 ( 16) Parameter Request List     54 (Server identifier)
                                             51 (IP address leasetime)
                                             58 (T1)
                                             59 (T2)
                                              1 (Subnet mask)
                                              3 (Routers)
                                              6 (DNS server)
                                             15 (Domainname)
                                             28 (Broadcast address)
                                             42 (NTP servers)
                                             66 (TFTP server name)
                                             67 (Bootfile name)
                                            132 (???)
                                            240 (???)
                                            250 (???)
                                            254 (???)
                                           
OPTION:  12 ( 20) Host name                 gsw-2020pa-12-d1-78
OPTION:  61 ( 20) Client-identifier         00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:31:2d:37:38
OPTION:  60 ( 10) Vendor class identifier   GSW-2020PA
OPTION:  77 ( 10) User-class Identification 0956657220312e30 .Ver 1.0
                                            3565             5e
OPTION:  54 (  4) Server identifier         xxx.233.57.226
OPTION:  50 (  4) Request IP address        xxx.160.93.131

Regards,

//F

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Re: [Kea-users] ERROR DHCP4_PACKET_SEND_FAIL

Fredrik V
Saw that I pasted one mac from syslog and another from dhcpdump in the initial post.

Here is the matching one, same client and same problem.

Jan 26 12:02:28 kea-dhcp01 kea-dhcp4: INFO  DHCP4_LEASE_ALLOC [hwtype=1 00:02:ab:12:d2:fe], cid=[00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:32:2d:66:65], tid=0x3219188d: lease xxx.160.93.130 has been allocated for 21600 seconds
Jan 26 12:02:28 kea-dhcp01 kea-dhcp4: ERROR DHCP4_PACKET_SEND_FAIL [hwtype=1 00:02:ab:12:d2:fe], cid=[00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:32:2d:66:65], tid=0x3219188d: failed to send DHCPv4 packet: pkt4 send failed: sendmsg() returned  with an error: Permission denied


root@kea-dhcp01:/var/lib/kea# dhcpdump -i ens192 -h 00:02:ab:12:d2:fe
  TIME: 2021-01-26 11:59:51.689
    IP: xxx.160.93.130 (78:ba:f9:2f:3:d6) > xxx.233.57.226 (0:50:56:86:c9:a1)
    OP: 1 (BOOTPREQUEST)
 HTYPE: 1 (Ethernet)
  HLEN: 6
  HOPS: 0
   XID: 3219188d
  SECS: 6945
 FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 00:02:ab:12:d2:fe:00:00:00:00:00:00:00:00:00:00
 SNAME: .
 FNAME: .
OPTION:  53 (  1) DHCP message type         3 (DHCPREQUEST)
OPTION:  57 (  2) Maximum DHCP message size 1024
OPTION:  55 ( 16) Parameter Request List     54 (Server identifier)
                                             51 (IP address leasetime)
                                             58 (T1)
                                             59 (T2)
                                              1 (Subnet mask)
                                              3 (Routers)
                                              6 (DNS server)
                                             15 (Domainname)
                                             28 (Broadcast address)
                                             42 (NTP servers)
                                             66 (TFTP server name)
                                             67 (Bootfile name)
                                            132 (???)
                                            240 (???)
                                            250 (???)
                                            254 (???)
                                           
OPTION:  12 ( 20) Host name                 gsw-2020pa-12-d2-fe
OPTION:  61 ( 20) Client-identifier         00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:32:2d:66:65
OPTION:  60 ( 10) Vendor class identifier   GSW-2020PA
OPTION:  77 ( 10) User-class Identification 0956657220312e30 .Ver 1.0
                                            3565             5e
OPTION:  54 (  4) Server identifier         xxx.233.57.226
OPTION:  50 (  4) Request IP address        xxx.160.93.130
---------------------------------------------------------------------------

On Tue, Jan 26, 2021 at 11:52 AM Fredrik V <[hidden email]> wrote:
Hi,

Found this message in syslog and I cant figure out whats going on. 

Jan 26 11:47:40 kea-dhcp01 kea-dhcp4: ERROR DHCP4_PACKET_SEND_FAIL [hwtype=1 00:02:ab:12:d2:fe], cid=[00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:32:2d:66:65], tid=0x3219188d: failed to send DHCPv4 packet: pkt4 send failed: sendmsg() returned  with an error: Permission denied

Here is the DHCPREQUEST. We get the request. We do not send any kind reply. 

What is causing the Permission denied?

root@kea-dhcp01:/var/lib/kea# dhcpdump -i ens192 -h 00:02:ab:12:d1:78
  TIME: 2021-01-26 10:39:20.565
    IP: xxx.160.93.131 (78:ba:f9:2f:3:d6) > xxx.233.57.226 (0:50:56:86:c9:a1)
    OP: 1 (BOOTPREQUEST)
 HTYPE: 1 (Ethernet)
  HLEN: 6
  HOPS: 0
   XID: 61f7346a
  SECS: 1899
 FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 00:02:ab:12:d1:78:00:00:00:00:00:00:00:00:00:00
 SNAME: .
 FNAME: .
OPTION:  53 (  1) DHCP message type         3 (DHCPREQUEST)
OPTION:  57 (  2) Maximum DHCP message size 1024
OPTION:  55 ( 16) Parameter Request List     54 (Server identifier)
                                             51 (IP address leasetime)
                                             58 (T1)
                                             59 (T2)
                                              1 (Subnet mask)
                                              3 (Routers)
                                              6 (DNS server)
                                             15 (Domainname)
                                             28 (Broadcast address)
                                             42 (NTP servers)
                                             66 (TFTP server name)
                                             67 (Bootfile name)
                                            132 (???)
                                            240 (???)
                                            250 (???)
                                            254 (???)
                                           
OPTION:  12 ( 20) Host name                 gsw-2020pa-12-d1-78
OPTION:  61 ( 20) Client-identifier         00:67:73:77:2d:32:30:32:30:70:61:2d:31:32:2d:64:31:2d:37:38
OPTION:  60 ( 10) Vendor class identifier   GSW-2020PA
OPTION:  77 ( 10) User-class Identification 0956657220312e30 .Ver 1.0
                                            3565             5e
OPTION:  54 (  4) Server identifier         xxx.233.57.226
OPTION:  50 (  4) Request IP address        xxx.160.93.131

Regards,

//F

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To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.

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