Frequent dhclient DHCPREQUEST messages in syslog
Posted: Fri Mar 03, 2023 2:58 pm
I setup a softether vpn server on ubuntu server. Initially, everything works fine. I can connect the ubuntu server remotely from another ubuntu client. However, recently, I found tons of dhclient DHCPREQUEST messages in syslog indicating that dhclient is sending a DHCPREQUEST on vpn_soft_vpn to 192.168.30.1. Once these message start, they repeat approximately every 1 second.
Something likes this:
Mar 3 22:54:07 XK dhclient[8545]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0xa027abf)
Mar 3 22:54:07 XK dhclient[9080]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x462c3792)
Mar 3 22:54:11 XK dhclient[3252]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2be20562)
Mar 3 22:54:11 XK dhclient[2909]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2496151f)
Mar 3 22:54:12 XK dhclient[3047]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2b8914c0)
Mar 3 22:54:12 XK dhclient[7897]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x3baf17f9)
Mar 3 22:54:13 XK dhclient[4473]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x409d0433)
Mar 3 22:54:14 XK dhclient[1865]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x7f45b09b)
Mar 3 22:54:15 XK dhclient[13627]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0xec18551)
Mar 3 22:54:15 XK dhclient[8193]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2ae566f9)
Mar 3 22:54:16 XK dhclient[5010]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x4decc5a8)
Mar 3 22:54:16 XK dhclient[9080]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x462c3792)
Could please check what's wrong with the client?
Something likes this:
Mar 3 22:54:07 XK dhclient[8545]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0xa027abf)
Mar 3 22:54:07 XK dhclient[9080]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x462c3792)
Mar 3 22:54:11 XK dhclient[3252]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2be20562)
Mar 3 22:54:11 XK dhclient[2909]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2496151f)
Mar 3 22:54:12 XK dhclient[3047]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2b8914c0)
Mar 3 22:54:12 XK dhclient[7897]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x3baf17f9)
Mar 3 22:54:13 XK dhclient[4473]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x409d0433)
Mar 3 22:54:14 XK dhclient[1865]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x7f45b09b)
Mar 3 22:54:15 XK dhclient[13627]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0xec18551)
Mar 3 22:54:15 XK dhclient[8193]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x2ae566f9)
Mar 3 22:54:16 XK dhclient[5010]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x4decc5a8)
Mar 3 22:54:16 XK dhclient[9080]: DHCPREQUEST of 192.168.30.20 on vpn_soft_vpn to 192.168.30.1 port 67 (xid=0x462c3792)
Could please check what's wrong with the client?