2022. 2. 10. 09:53ㆍIT/Network
DHCPv6 configuration for isc-dhcp-server | netprobe
DHCPv6 configuration for isc-dhcp-server
My network is running IPv6 with SLAAC and the JunOS version on my firewall does not support RDNSS, so I needed a full-featured DHCP server to hand out DNS information. I already have a Raspberry Pi…
blog.netpro.be
여기 잘나와있다.. config 설정 관련하고.... 등등.
https://tldp.org/HOWTO/Linux+IPv6-HOWTO/ch22s06.html
6. ISC Dynamic Host Configuration Server (dhcpd)
ISC DHCP supports IPv6 since version 4.x. 6.1. Configuration of the ISC DHCP server for IPv6 (dhcpd) Note that currently, the ISC DHCP server can only serve IPv4 or IPv6, means you have to start the daemon twice (for IPv6 with option ”-6”) to support
tldp.org
이게 실무 config 설정 방법인듯 ..
** 설정 되는 로그
root@raspberrypi:~#
15:32:34.010437 IP6 (flowlabel 0x7ed33, hlim 1, next-header UDP (17) payload length: 149) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 renew (xid=b47062 (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (IA_NA IAID:730347116 T1:187 T2:300 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (vendor-class) (Client-FQDN) (option-request vendor-specific-info DNS-server DNS-search-list Client-FQDN))
15:32:34.011422 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 132) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xcf06 -> 0x7885!] dhcp6 reply (xid=b47062 (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (DNS-server fec0:0:0:1::1) (DNS-search-list domain.example.))
15:32:57.940413 IP6 (flowlabel 0x7e5c5, hlim 1, next-header UDP (17) payload length: 108) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 confirm (xid=8314f8 (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:0 vltime:0)) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list))
15:32:57.940987 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 82) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xced4 -> 0xde44!] dhcp6 reply (xid=8314f8 (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (status-code Success))
15:32:58.960968 IP6 (flowlabel 0xc1c7f, hlim 1, next-header UDP (17) payload length: 108) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 confirm (xid=440674 (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:0 vltime:0)) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list))
15:32:58.961638 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 82) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xced4 -> 0xed07!] dhcp6 reply (xid=440674 (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (status-code Success))
15:47:11.148545 IP6 (flowlabel 0xb4b43, hlim 1, next-header UDP (17) payload length: 103) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=823bd7 (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (IA_NA IAID:730347116 T1:0 T2:0) (Client-FQDN) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list Client-FQDN))
15:47:11.149865 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 132) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xcf06 -> 0xb242!] dhcp6 advertise (xid=823bd7 (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (DNS-server fec0:0:0:1::1) (DNS-search-list domain.example.))
15:47:11.577547 IP6 (flowlabel 0xb5959, hlim 1, next-header UDP (17) payload length: 103) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=40beee (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (IA_NA IAID:730347116 T1:0 T2:0) (Client-FQDN) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list Client-FQDN))
15:47:11.578221 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 132) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xcf06 -> 0x2f6d!] dhcp6 advertise (xid=40beee (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (DNS-server fec0:0:0:1::1) (DNS-search-list domain.example.))
15:47:12.587378 IP6 (flowlabel 0xc88e8, hlim 1, next-header UDP (17) payload length: 149) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=40beee (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (Client-FQDN) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list Client-FQDN))
15:47:12.588249 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 132) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xcf06 -> 0x2a6d!] dhcp6 reply (xid=40beee (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (DNS-server fec0:0:0:1::1) (DNS-search-list domain.example.))
15:50:19.307424 IP6 (flowlabel 0xbffeb, hlim 1, next-header UDP (17) payload length: 149) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 renew (xid=b9fae5 (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (IA_NA IAID:730347116 T1:187 T2:300 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (vendor-class) (Client-FQDN) (option-request vendor-specific-info DNS-server DNS-search-list Client-FQDN))
15:50:19.308354 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 132) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xcf06 -> 0xedfc!] dhcp6 reply (xid=b9fae5 (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:375 vltime:600)) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (DNS-server fec0:0:0:1::1) (DNS-search-list domain.example.))
** 안되는 로그
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 262144 bytes
15:29:45.458798 IP6 (flowlabel 0x45b1a, hlim 1, next-header UDP (17) payload length: 108) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 confirm (xid=9ce8ea (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:0 vltime:0)) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list))
15:29:45.459455 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 82) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xced4 -> 0x0a39!] dhcp6 reply (xid=9ce8ea (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (status-code Success))
15:29:46.479889 IP6 (flowlabel 0x4372b, hlim 1, next-header UDP (17) payload length: 108) fe80::bc26:1d84:b1c:9d53.546 > ff02::1:2.547: [udp sum ok] dhcp6 confirm (xid=59c480 (elapsed-time 0) (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (IA_NA IAID:730347116 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::254 pltime:0 vltime:0)) (vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list))
15:29:46.480461 IP6 (flowlabel 0xf610e, hlim 64, next-header UDP (17) payload length: 82) fe80::2e0:4cff:fe68:10d.547 > fe80::bc26:1d84:b1c:9d53.546: [bad udp cksum 0xced4 -> 0x2ee6!] dhcp6 reply (xid=59c480 (client-ID hwaddr/time type 1 time 662363778 00d861e27d57) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (status-code Success))
15:35:59.199439 IP6 (flowlabel 0x58169, hlim 1, next-header UDP (17) payload length: 72) fe80::3af8:5eff:fe83:2e36.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=1c5521 (client-ID hwaddr type 1 38f85e832e36) (IA_NA IAID:1 T1:0 T2:0) (elapsed-time 65535) (option-request DNS-server DNS-search-list) (IA_PD IAID:0 T1:0 T2:0))
15:37:00.531206 IP6 (flowlabel 0x58169, hlim 1, next-header UDP (17) payload length: 72) fe80::3af8:5eff:fe83:2e36.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=1c5521 (client-ID hwaddr type 1 38f85e832e36) (IA_NA IAID:1 T1:0 T2:0) (elapsed-time 65535) (option-request DNS-server DNS-search-list) (IA_PD IAID:0 T1:0 T2:0))
15:37:54.822796 IP6 (flowlabel 0x58169, hlim 1, next-header UDP (17) payload length: 72) fe80::3af8:5eff:fe83:2e36.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=1c5521 (client-ID hwaddr type 1 38f85e832e36) (IA_NA IAID:1 T1:0 T2:0) (elapsed-time 65535) (option-request DNS-server DNS-search-list) (IA_PD IAID:0 T1:0 T2:0))
15:38:56.474590 IP6 (flowlabel 0x58169, hlim 1, next-header UDP (17) payload length: 72) fe80::3af8:5eff:fe83:2e36.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=1c5521 (client-ID hwaddr type 1 38f85e832e36) (IA_NA IAID:1 T1:0 T2:0) (elapsed-time 65535) (option-request DNS-server DNS-search-list) (IA_PD IAID:0 T1:0 T2:0))
15:39:51.546258 IP6 (flowlabel 0x58169, hlim 1, next-header UDP (17) payload length: 72) fe80::3af8:5eff:fe83:2e36.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=1c5521 (client-ID hwaddr type 1 38f85e832e36) (IA_NA IAID:1 T1:0 T2:0) (elapsed-time 65535) (option-request DNS-server DNS-search-list) (IA_PD IAID:0 T1:0 T2:0))
22:02:10.236381 IP6 (flowlabel 0x8603c, hlim 1, next-header UDP (17) payload length: 72) fe80::3af8:5eff:fe83:2e36.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=3f2d6f (client-ID hwaddr type 1 38f85e832e36) (IA_NA IAID:1 T1:0 T2:0) (elapsed-time 6736) (option-request DNS-server DNS-search-list) (IA_PD IAID:0 T1:0 T2:0))
22:02:10.769774 IP6 (flowlabel 0x3897f, hlim 64, next-header UDP (17) payload length: 173) fe80::2e0:4cff:fe68:10d.547 > fe80::3af8:5eff:fe83:2e36.546: [bad udp cksum 0x13c7 -> 0x736d!] dhcp6 advertise (xid=3f2d6f (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2001:db7:0:2::253 pltime:375 vltime:600)) (IA_PD IAID:0 T1:0 T2:0 (IA_PD-prefix 2001:db7:0:f00::/56 pltime:375 vltime:600)) (client-ID hwaddr type 1 38f85e832e36) (server-ID hwaddr/time type 1 time 695808155 e45f014b9ee2) (DNS-server fec0:0:0:1::1) (DNS-search-list domain.example.))
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