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| docs:techref:odhcpd [2023/08/30 20:30] – [dhcp section] systemcrash | docs:techref:odhcpd [2024/04/09 03:19] (current) – [Table] systemcrash |
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| Configuration for the odhcp daemon. | Configuration for the odhcp daemon. |
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| ^ Name ^ Type ^ Default ^ Description ^ | ^ Name ^ Type ^ Default ^ Description ^ |
| | ''legacy'' | boolean | ''0'' | Enable DHCPv4 if the 'dhcp' section constains a ''start'' option, but no ''dhcpv4'' option set. | | | ''legacy'' | boolean | ''0'' | Enable DHCPv4 if the 'dhcp' section contains a ''start'' option, but no ''dhcpv4'' option set. | |
| | ''maindhcp'' | boolean | ''0'' | Use odhcpd as the main DHCPv4 service. | | | ''maindhcp'' | boolean | ''0'' | Use odhcpd as the main DHCPv4 service. | |
| | ''leasefile'' | string | | Location of the lease/hostfile for DHCPv4 and DHCPv6. | | | ''leasefile'' | string | | Location of the lease/hostfile for DHCPv4 and DHCPv6. | |
| | ''leasetrigger'' | string | | Location of the lease trigger script. | | | ''leasetrigger'' | string | | Location of the lease trigger script. | |
| | ''loglevel'' | integer | ''6'' | Syslog level priority (0-7). | | | ''loglevel'' | integer | ''6'' | Syslog level priority (0-7). 0=emer, 1=alert, 2=crit, 3=err, 4=warn, 5=notice, 6=info, 7=debug | |
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| ==== dhcp section ==== | ==== dhcp section ==== |
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| <sortable> | <sortable> |
| ^ Name ^ Type ^ Required ^ Default ^ Description ^ | ^ Name ^ Type ^ Required ^ Default ^ Description ^ |
| | ''interface'' | string | | ''<name of UCI section>'' | Logical OpenWrt interface. | | | ''interface'' | string | | ''<name of UCI section>'' | Logical OpenWrt interface. | |
| | ''ifname'' | string | | ''<resolved from logical>'' | Physical network interface. | | | ''ifname'' | string | | ''<resolved from logical>'' | Physical network interface. | |
| | ''networkid'' | string | | ''<same as ifname>'' | Alias of ''ifname'' for compatibility. | | | ''networkid'' | string | | ''<same as ifname>'' | Alias of ''ifname'' for compatibility. | |
| | ''ignore'' | boolean | | ''0'' | Do not serve this interface unless overridden by ''ra'', ''ndp'', ''dhcpv4'' or ''dhcpv6'' options. | | | ''ignore'' | boolean | | ''0'' | Do not serve this interface unless overridden by ''ra'', ''ndp'', ''dhcpv4'' or ''dhcpv6'' options. | |
| | ''master'' | boolean | | ''0'' | Is a master interface for relaying. | | | ''master'' | boolean | | ''0'' | Is a master interface for relaying. | |
| | ''ra'' | string | | ''disabled'' | Router Advert service. Set to ''disabled'', ''server'', ''relay'' or ''hybrid''. | | | ''ra'' | string | | ''disabled'' | Router Advert service. Set to ''disabled'', ''server'', ''relay'' or ''hybrid''. | |
| | ''dhcpv6'' | string | | ''disabled'' | DHCPv6 service. Set to ''disabled'', ''server'', ''relay'' or ''hybrid''. | | | ''dhcpv6'' | string | | ''disabled'' | DHCPv6 service. Set to ''disabled'', ''server'', ''relay'' or ''hybrid''. | |
| | ''dhcpv4'' | string | | ''disabled'' | DHCPv4 service. Set to ''disabled'' or ''server''. | | | ''dhcpv4'' | string | | ''disabled'' | DHCPv4 service. Set to ''disabled'' or ''server''. | |
| | ''ndp'' | string | | ''disabled'' | Neighbor Discovery Proxy. Set to ''disabled'', ''relay'' or ''hybrid''. | | | ''ndp'' | string | | ''disabled'' | Neighbor Discovery Proxy. Set to ''disabled'', ''relay'' or ''hybrid''. | |
| | ''dynamicdhcp'' | boolean | | ''1'' | Leases for DHCPv4 and DHCPv6 are created dynamically. | | | ''dynamicdhcp'' | boolean | | ''1'' | Leases for DHCPv4 and DHCPv6 are created dynamically. | |
| | ''dhcpv4_forcereconf'' | boolean | | ''0'' | Force reconfiguration by sending force renew message even if the client did not include the force renew nonce capability option ([[https://datatracker.ietf.org/doc/html/rfc6704|RFC 6704]]). | | | ''dhcpv4_forcereconf'' | boolean | | ''0'' | Force reconfiguration by sending force renew message even if the client did not include the force renew nonce capability option ([[https://datatracker.ietf.org/doc/html/rfc6704|RFC 6704]]). | |
| | ''dhcpv6_assignall'' | boolean | | ''1'' | Assign all viable DHCPv6 addresses in statefull mode. If disabled only the DHCPv6 address having the longest preferred lifetime is assigned. | | | ''dhcpv6_assignall'' | boolean | | ''1'' | Assign all viable DHCPv6 addresses in statefull mode. If disabled only the DHCPv6 address having the longest preferred lifetime is assigned. | |
| | ''dhcpv6_hostidlength'' | integer | | ''12'' | Host ID length of dynamically created leases, allowed values: 12 - 64 (bits). | | | ''dhcpv6_hostidlength'' | integer | | ''12'' | Host ID length of dynamically created leases, allowed values: 12 - 64 (bits). | |
| | ''dhcpv6_na'' | boolean | | ''1'' | DHCPv6 stateful addressing hands out IA_NA - Internet Address - Network Address. | | | ''dhcpv6_na'' | boolean | | ''1'' | DHCPv6 stateful addressing hands out IA_NA - Internet Address - Network Address. | |
| | ''dhcpv6_pd'' | boolean | | ''1'' | DHCPv6 stateful addressing hands out IA_PD - Internet Address - Prefix Delegation. | | | ''dhcpv6_pd'' | boolean | | ''1'' | DHCPv6 stateful addressing hands out IA_PD - Internet Address - Prefix Delegation. | |
| | ''router'' | list | | ''<local address>'' | Routers to announce accepts IPv4 only. | | | ''router'' | list | | ''<local address>'' | Routers to announce accepts IPv4 only. | |
| | ''dns'' | list | | ''<local address>'' | DNS servers to announce on the network. IPv4 and IPv6 addresses are accepted. | | | ''dns'' | list | | ''<local address>'' | DNS servers to announce on the network. IPv4 and IPv6 addresses are accepted. | |
| | ''dns_service'' | boolean | | ''1'' | Announce the address of interface as DNS service if the list of DNS is empty. | | | ''dns_service'' | boolean | | ''1'' | Announce the address of interface as DNS service if the list of DNS is empty. | |
| | ''domain'' | list | | ''<local search domain>'' | Search domains to announce on the network. | | | ''domain'' | list | | ''<local search domain>'' | Search domains to announce on the network. | |
| | ''leasetime'' | string | | ''12h'' | DHCPv4 address leasetime | | | ''leasetime'' | string | | ''12h'' | DHCPv4 address leasetime | |
| | ''start'' | integer | | ''100'' | Starting address of the DHCPv4 pool. | | | ''start'' | integer | | ''100'' | Starting address of the DHCPv4 pool. | |
| | ''limit'' | integer | | ''150'' | Number of addresses in the DHCPv4 pool. | | | ''limit'' | integer | | ''150'' | Number of addresses in the DHCPv4 pool. | |
| | ''preferred_lifetime'' | string | | ''12h'' | Value for the preferred lifetime for a prefix. | | | ''preferred_lifetime'' | string | | ''12h'' | Value for the preferred lifetime for a prefix. | |
| | ''ra_default'' | integer | | ''0'' | Override default route. Set to ''0'' (default), ''1'' (ignore, no public address) or ''2'' (ignore all). | | | ''ra_default'' | integer | | ''0'' | Override default route. Set to ''0'' (default), ''1'' (ignore, no public address) or ''2'' (ignore all). | |
| | ''ra_flags'' | list | | ''other-config'' | List of RA flags to be advertised in RA messages:\\ ''managed-config'' - get address information from DHCPv6 server. If this flag is set, ''%%other-config%%'' flag is redundant.\\ ''other-config'' - get other configuration from DHCPv6 server (such as DNS servers). See [[https://datatracker.ietf.org/doc/html/rfc4861#section-4.2|here]] for details.\\ ''home-agent'' - see [[https://datatracker.ietf.org/doc/html/rfc3775#section-7.1|here]] for details.\\ ''none''.\\ OpenWrt since version 21.02 configures ''managed-config'' and ''other-config'' [[https://github.com/openwrt/openwrt/blob/openwrt-21.02/package/network/services/odhcpd/files/odhcpd.defaults#L49-L50|by default]]. | | | ''ra_flags'' | list | | ''other-config'' | List of RA flags to be advertised in RA messages:\\ ''managed-config'' - get address information from DHCPv6 server. If this flag is set, ''%%other-config%%'' flag is redundant.\\ ''other-config'' - get other configuration from DHCPv6 server (such as DNS servers). See [[https://datatracker.ietf.org/doc/html/rfc4861#section-4.2|here]] for details.\\ ''home-agent'' - see [[https://datatracker.ietf.org/doc/html/rfc3775#section-7.1|here]] for details.\\ ''none''.\\ OpenWrt since version 21.02 configures ''managed-config'' and ''other-config'' [[https://github.com/openwrt/openwrt/blob/openwrt-21.02/package/network/services/odhcpd/files/odhcpd.defaults#L49-L50|by default]]. | |
| | ''ra_slaac'' | boolean | | ''1'' | Announce SLAAC for a prefix (that is, set the A flag in RA messages).| | | ''ra_slaac'' | boolean | | ''1'' | Announce SLAAC for a prefix (that is, set the A flag in RA messages). | |
| | ''ra_management'' | integer | no | ''1'' | :!: This option is [[commit>?p=project/odhcpd.git;a=commit;h=e73bf11dee1073aaaddc0dc67ca8c7d75ae3c6ad|deprecated]]. Use ''ra_flags'' and ''ra_slaac'' options instead. \\ RA management mode: no M-Flag but A-Flag (''0''), both M and A flags (''1''), M flag but not A flag (''2'') | | | ''ra_management'' | integer | no | ''1'' | :!: This option is [[commit>?p=project/odhcpd.git;a=commit;h=e73bf11dee1073aaaddc0dc67ca8c7d75ae3c6ad|deprecated]]. Use ''ra_flags'' and ''ra_slaac'' options instead. \\ RA management mode: no M-Flag but A-Flag (''0''), both M and A flags (''1''), M flag but not A flag (''2'') | |
| | ''ra_offlink'' | boolean | | ''0'' | Announce prefixes off-link. | | | ''ra_offlink'' | boolean | | ''0'' | Announce prefixes off-link. | |
| | ''ra_preference'' | string | | ''medium'' | Route preference ''medium'', ''high'' or ''low''. | | | ''ra_preference'' | string | | ''medium'' | Route preference ''medium'', ''high'' or ''low''. | |
| | ''ra_maxinterval'' | integer | | ''600'' | Maximum time allowed between sending unsolicited Router Advertisements (RA). | | | ''ra_maxinterval'' | integer | | ''600'' | Maximum time allowed between sending unsolicited Router Advertisements (RA). | |
| | ''ra_mininterval'' | integer | | ''200'' | Minimum time allowed between sending unsolicited Router Advertisements (RA). | | | ''ra_mininterval'' | integer | | ''200'' | Minimum time allowed between sending unsolicited Router Advertisements (RA). | |
| | ''ra_lifetime'' | integer | | ''1800'' | Router Lifetime published in Router Advertisement (RA) messages. | | | ''ra_lifetime'' | integer | | ''1800'' | Router Lifetime published in Router Advertisement (RA) messages. | |
| | ''ra_useleasetime'' | boolean | | ''0'' | If set, the configured DHCPv4 ''leasetime'' is used both as limit for the preferred and valid lifetime of an IPv6 prefix. | | | ''ra_useleasetime'' | boolean | | ''0'' | If set, the configured DHCPv4 ''leasetime'' is used both as limit for the preferred and valid lifetime of an IPv6 prefix. | |
| | ''ra_reachabletime'' | integer | | ''0'' | Reachable Time in milliseconds to be published in Router Advertisement (RA) messages'. | | | ''ra_reachabletime'' | integer | | ''0'' | Reachable Time in milliseconds to be published in Router Advertisement (RA) messages'. | |
| | ''ra_retranstime'' | integer | | ''0'' | Retransmit Time in milliseconds to be published in Router Advertisment (RA) messages. | | | ''ra_retranstime'' | integer | | ''0'' | Retransmit Time in milliseconds to be published in Router Advertisment (RA) messages. | |
| | ''ra_hoplimit'' | integer | | ''0'' | The maximum hops to be published in Router Advertisement (RA) messages. | | | ''ra_hoplimit'' | integer | | ''0'' | The maximum hops to be published in Router Advertisement (RA) messages. | |
| | ''ra_mtu'' | integer | | ''0'' | The MTU to be published in Router Advertisement (RA) messages. | | | ''ra_mtu'' | integer | | ''0'' | The MTU to be published in Router Advertisement (RA) messages. | |
| | ''ra_dns'' | boolean | | ''1'' | Announce DNS configuration in RA messages ([[https://datatracker.ietf.org/doc/html/rfc8106|RFC 8106]]). | | | ''ra_dns'' | boolean | | ''1'' | Announce DNS configuration in RA messages ([[https://datatracker.ietf.org/doc/html/rfc8106|RFC 8106]]). | |
| | ''ndproxy_routing'' | boolean | | ''1'' | Learn routes from NDP. | | | ''ndproxy_routing'' | boolean | | ''1'' | Learn routes from NDP. | |
| | ''ndproxy_slave'' | boolean | | ''0'' | NDProxy external slave. | | | ''ndproxy_slave'' | boolean | | ''0'' | NDProxy external slave. | |
| | ''ndproxy_static'' | list | | | Static NDProxy prefixes. | | | ''ndproxy_static'' | list | | | Static NDProxy prefixes. | |
| | ''prefix_filter'' | string | | ''::/0'' | Only advertise on-link prefixes within the provided IPv6 prefix. Others are filtered out. | | | ''prefix_filter'' | string | | ''::/0'' | Only advertise on-link prefixes within the provided IPv6 prefix. Others are filtered out. | |
| | | ''ntp'' | list | | | DHCPv6 stateful option 56 to Announce NTP servers | |
| </sortable> | </sortable> |
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