Mercurial > hg > dhcpcd
changeset 2455:b6e215ab7552 draft
Document why we don't send both FQDN and hostname options.
| author | Roy Marples <roy@marples.name> |
|---|---|
| date | Fri, 02 May 2014 06:40:21 +0000 |
| parents | 5d965f193b71 |
| children | ef4a50a6763f |
| files | dhcp.c |
| diffstat | 1 files changed, 9 insertions(+), 0 deletions(-) [+] |
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--- a/dhcp.c Wed Apr 30 14:14:03 2014 +0000 +++ b/dhcp.c Fri May 02 06:40:21 2014 +0000 @@ -828,6 +828,15 @@ ifo->options & DHCPCD_HOSTNAME_SHORT ? 1 : 0); else hostname = ifo->hostname; + + /* + * RFC4702 3.1 States that if we send the Client FQDN option + * then we MUST NOT also send the Host Name option. + * Technically we could, but that is not RFC conformant and + * also seems to break some DHCP server implemetations such as + * Windows. On the other hand, ISC dhcpd is just as non RFC + * conformant by not accepting a partially qualified FQDN. + */ if (ifo->fqdn != FQDN_DISABLE) { /* IETF DHC-FQDN option (81), RFC4702 */ *p++ = DHO_FQDN;