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path: root/man/systemd.network.xml
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2016-05-17networkd: Add EmitRouter= option for DHCP Server (#3251)Clemens Gruber
Add an option to disable appending DHCP option 3 (Router) to the DHCP OFFER and ACK packets. This commit adds the boolean option EmitRouter= for the [DHCPServer] section in .network files. Rationale: On embedded devices, it is very useful to have a DHCP server running on an USB OTG ethernet gadget interface to avoid manual setup on the client PCs, but it should only serve IP addresses, no route(r)s. Otherwise, Windows clients experience network connectivity issues, due to them using the address set in DHCP option 3 as default gateway. Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
2016-05-09networkd: reworkd LLDP emission to allow control of propagation levelLennart Poettering
This allows selecting the propagation level of emitted LLDP packets (specifically: the destination MAC address of the packets). This is useful because it allows generating LLDP packets that optionally cross certain types of bridges. See 802.11ab-2009, Table 7-1 for details.
2016-05-06man: link the part about [DHCP] to the DHCP= explanationLennart Poettering
2016-05-06man: move IPv6 note to the right sectionLennart Poettering
Make the XML validate again.
2016-05-06networkd: move the IAID configuration option into the [DHCP] sectionLennart Poettering
It's only relevant to DHCP, and it should be where the DUID is configured too.
2016-05-04Merge pull request #3156 from keszybz/duid-settingsLennart Poettering
Rework DUID setting
2016-05-03networkd: Add support to configure IPv6 preferred lifetime (#3102)Susant Sahani
Closes #2166. We only allow 0, infinity and forever. infinity and forever is same.
2016-05-03networkd: add support to set route tableSusant Sahani
networkd: add support to set route table 1. add support to configure the table id. if id is less than 256 we can fit this in the header of route as netlink property is a char. But in kernel this proepty is a unsigned 32. Hence if greater that 256 add this as RTA_TABLE attribute. 2. we are not setting the address family now. Now set this property.
2016-05-03man: add a description of DUIDType and DUIDRawDataZbigniew Jędrzejewski-Szmek
This is essentially a revert of f38e0cce75ff2ffbd99f7e382ed39c160bb7d799 (which removed the documentation of DUIDType on purpose). The description is heavily updated for the new semantics. This addresses #3127 § 4.
2016-05-03man: s/similar/similarly/Zbigniew Jędrzejewski-Szmek
2016-04-29networkd: clean up DUID code a bitLennart Poettering
Let's move DUID configuration into the [DHCP] section, since it only makes sense in a DHCP context, and should be close to the configuration of ClientIdentifier= and suchlike. This really shouldn't be a section of its own, we don't have any for any of our other per-protocol specific identifiers... Follow-up for #2890 #2943
2016-04-22treewide: fix typos (#3092)Torstein Husebø
2016-04-20networkd: bump MTU to 1280 for interfaces which have IPv6 enabled (#3077)Susant Sahani
IPv6 protocol requires a minimum MTU of 1280 bytes on the interface. This fixes #3046. Introduce helper link_ipv6_enabled() to figure out whether IPV6 is enabled. Introduce network_has_static_ipv6_addresses() to find out if any static ipv6 address configured. If IPv6 is not configured on any interface that is SLAAC, DHCPv6 and static IPv6 addresses not configured, then IPv6 will be automatically disabled for that interface, that is we write "1" to /proc/sys/net/ipv6/conf//disable_ipv6.
2016-04-14networkd: Add support to configure proxy arp support to interfaces (#3020)Susant Sahani
Fixes: #2889
2016-04-07Merge pull request #2943 from vinaykul/systemd_duid_review_fixesZbigniew Jędrzejewski-Szmek
DHCP DUID parsing fix, logging fix, man-page fix
2016-04-06man: fix spelling mistakesTorstein Husebø
2016-04-04Drop description of 'Type' field from docs.Vinay Kulkarni
2016-04-04Address code-review items for pull-request #2890Vinay Kulkarni
1. Replace strtol with unhexchar, verified with valid and invalid DUID strings. 2. Fix logging to use log_syntax instead of log_error. 3. On error reading DUID, ignore read and preserve previous state. 4. Fix man-pages to use markup, remove options not yet implemented. 5. Remove spurious header line in new files.
2016-03-31Merge pull request #2915 from vinaykul/masterZbigniew Jędrzejewski-Szmek
2016-03-30DHCP DUID, IAID configuration optionsVinay Kulkarni
2016-03-21Revert "DHCP DUID and IAID configurability"Zbigniew Jędrzejewski-Szmek
2016-03-14man: network - Fix misspelling of "router advertisement"Tobias Klauser
2016-03-09DHCP DUID and IAID configurabilityVinay Kulkarni
2016-02-23man: network - clarify BindCarrier documentationTom Gundersen
Make it clear that we are talking of links (in the sense used in networkd) and not ports. Addresses issue #964.
2016-02-23man: network - improve IPv6Token documentationTom Gundersen
Enabling router advertisement may even trigger SLAAC or DHCPv6 to be used to configure IPv6 addresses on the link. It may not be obvious that only in the SLAAC case will the Token have an effect. Clarify this in the man page. Addresses issue #863.
2016-02-21man: document the new EmitLLDP= .network settingLennart Poettering
Also, beef up the LLDP documentation a bit.
2016-02-21networkd: turn on LLDP reception by default, in "routers-only" modeLennart Poettering
This way "networkctl status" becomes a bit more useful by default, as router information is just visible, without any further configuration. LLDP reception is fully passive and relatively low simple and low traffic, hence this should be safe to enable by default.
2016-02-21sd-lldp: rework sd-lldp APILennart Poettering
This reworks the sd-lldp substantially, simplifying things on one hand, and extending the logic a bit on the other. Specifically: - Besides the sd_lldp object only one other object is maintained now, sd_lldp_neighbor. It's used both as storage for literal LLDP packets, and for maintainging info about peers in the database. Separation between packet, TLV and chassis data is not maintained anymore. This should be a major simplification. - The sd-lldp API has been extended so that a couple of per-neighbor fields may be queried directly, without iterating through the object. Other fields that may appear multiple times, OTOH have to be iterated through. - The maximum number of entries in the neighbor database is now configurable during runtime. - The generation of callbacks from sd_lldp objects is more restricted: callbacks are only invoked when actual data changed. - The TTL information is now hooked with a timer event, so that removals from the neighbor database due to TTLs now result in a callback event. - Querying LLDP neighbor database will now return a strictly ordered array, to guarantee stability. - A "capabilities" mask may now be configured, that selects what type of LLDP neighbor data is collected. This may be used to restrict collection of LLDP info about routers instead of all neighbors. This is now exposed via networkd's LLDP= setting. - sd-lldp's API to serialize the collected data to text files has been removed. Instead, there's now an API to extract the raw binary data from LLDP neighbor objects, as well as one to convert this raw binary data back to an LLDP neighbor object. networkd will save this raw binary data to /run now, and the client side can simply parse the information. - support for parsing the more exotic TLVs has been removed, since we are not using that. Instead there are now APIs to extract the raw data from TLVs. Given how easy it is to parse the TLVs clients should do so now directly instead of relying on our APIs for that. - A lot of the APIs that parse out LLDP strings have been simplified so that they actually return strings, instead of char arrays with a length. To deal with possibly dangerous characters the strings are escaped if needed. - APIs to extract and format the chassis and port IDs as strings has been added. - lldp.h has been simplified a lot. The enums are anonymous now, since they were never used as enums, but simply as constants. Most definitions we don't actually use ourselves have eben removed.
2016-02-12man: fix typosJakub Wilk
2016-01-26networkd: optinally use DHCP lease domain info for routing onlyLennart Poettering
This changes the UseDomains= setting of .network files to take an optional third value "route", in addition to the boolean values. If set, the passed domain information is used for routing rules only, but not for the search path logic.
2016-01-26networkd: rework Domains= settingLennart Poettering
Previously, .network files only knew a vaguely defined "Domains=" concept, for which the documentation declared it was the "DNS domain" for the network connection, without specifying what that means. With this the Domains setting is reworked, so that there are now "routing" domains and "search" domains. The former are to be used by resolved to route DNS request to specific network interfaces, the latter is to be used for searching single-label hostnames with (in addition to being used for routing). Both settings are configured in the "Domains=" setting. Normal domain names listed in it are now considered search domains (for compatibility with existing setups), while those prefixed with "~" are considered routing domains only. To route all lookups to a specific interface the routing domain "." may be used, referring to the root domain. An alternative syntax for this is the "*", as was already implemented before using the "wildcard" domain concept. This commit adds proper parsers for this new logic, and exposes this via the sd-network API. This information is not used by resolved yet, this will be added in a later commit.
2016-01-06resolved: introduce support for per-interface negative trust anchorsLennart Poettering
2016-01-05resolved,networkd: add a per-interface DNSSEC settingLennart Poettering
This adds a DNSSEC= setting to .network files, and makes resolved honour them.
2016-01-05man: document that DNS= and Domains= is implemented by resolvedLennart Poettering
2016-01-05networkd,resolved: add a per-interface mdns configuration optionLennart Poettering
2015-12-26man: fix typosJakub Wilk
2015-11-13networkd: stop managing per-interface IP forwarding settingsLennart Poettering
As it turns out the kernel does not support per-interface IPv6 packet forwarding controls (unlike as it does for IPv4), but only supports a global option (#1597). Also, the current per-interface management of the setting isn't really useful, as you want it to propagate to at least one more interface than the one you configure it on. This created much grief (#1411, #1808). Hence, let's roll this logic back and simplify this again, so that we can expose the same behaviour on IPv4 and IPv6 and things start to work automatically again for most folks: if a network with this setting set is set up we propagate the setting into the global setting, but this is strictly one-way: we never reset it again, and we do nothing for network interfaces where this setting is not enabled. Fixes: #1808, #1597.
2015-11-11networkd: IPv6 router discovery - follow IPv6AcceptRouterAdvertisemnt=Tom Gundersen
The previous behavior: When DHCPv6 was enabled, router discover was performed first, and then DHCPv6 was enabled only if the relevant flags were passed in the Router Advertisement message. Moreover, router discovery was performed even if AcceptRouterAdvertisements=false, moreover, even if router advertisements were accepted (by the kernel) the flags indicating that DHCPv6 should be performed were ignored. New behavior: If RouterAdvertisements are accepted, and either no routers are found, or an advertisement is received indicating DHCPv6 should be performed, the DHCPv6 client is started. Moreover, the DHCP option now truly enables the DHCPv6 client regardless of router discovery (though it will probably not be very useful to get a lease withotu any routes, this seems the more consistent approach). The recommended default setting should be to set DHCP=ipv4 and to leave IPv6AcceptRouterAdvertisements unset.
2015-11-10man: add man for IPV6 hop limitSusant Sahani
2015-11-06doc: correct orthography, word forms and missing/extraneous wordsJan Engelhardt
2015-11-06doc: correct punctuation and improve typography in documentationJan Engelhardt
2015-10-16man: add man for IPV6 DADSusant Sahani
2015-10-12man: describe IPv6AcceptRouterAdvertisements= betterZbigniew Jędrzejewski-Szmek
With the previous description it wasn't clear that the kernel default is being described. Add link to kernel docs.
2015-10-06Merge pull request #1452 from poettering/journal-vacuumDaniel Mack
A variety of journal vacuuming improvements, plus an nspawn fix
2015-10-03man: include numeric prefixes in example file names for .link, .netdev, ↵Lennart Poettering
.network files In order to avoid confusion with the default files we ship, let's use a low prefix number for all examples. Fixes #1409.
2015-09-24networkd: add support to configure preferred source of static routesJens Kuske
2015-09-12man: add support for accept ra manSusant Sahani
2015-08-31networkd: dhcp-server - allow configuration of the poolTom Gundersen
The constraints we place on the pool is that it is a contiguous sequence of addresses in the same subnet as the server address, not including the subnet nor broadcast addresses, but possibly including the server address itself. If the server address is included in the pool it is (obviously) reserved and not handed out to clients.
2015-08-27man: document the new DHCP settings added in the past commitsLennart Poettering
2015-08-20Adding bonding examples for systemd-networkdMajor Hayden
This commit provides some basic bonding configuration examples for .netdev and .network files.