Hier werden die Unterschiede zwischen zwei Versionen gezeigt.
| Nächste Überarbeitung | Vorherige Überarbeitung | ||
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lpi2:dhcp-relay [2014/02/26 07:29] ingo_wichmann angelegt |
lpi2:dhcp-relay [2016/12/07 20:42] (aktuell) ingo_wichmann |
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| + | [[https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717215|dhcpd/KVM Bug]] beachten (( Lösungsmöglichkeiten um UDP Checksum-Problem zu vermeiden: | ||
| + | * in KVM e1000 als Netzwerkkarte auswählen, | ||
| + | * oder: TX offloading in der Netzwerkkarte ausschalten | ||
| + | * oder: mit iptables die Checksumme erzeugen | ||
| + | )) | ||
| + | ===== Konfiguration dhcpd um Subnetz erweitern ===== | ||
| + | ''/etc/dhcp/dhcpd.conf'' : ( debian 6.0 ) | ||
| + | |||
| + | ''/etc/dhcpd.conf'' : ( openSuSE 12.1, centos 6 ) | ||
| + | <file> | ||
| + | subnet 10.1.1.0 netmask 255.255.255.0 { | ||
| + | range 10.1.1.10 10.1.1.20; | ||
| + | option domain-name "sub.example.com"; | ||
| + | option routers 10.1.1.2; | ||
| + | option broadcast-address 10.1.1.255; | ||
| + | default-lease-time 600; | ||
| + | max-lease-time 7200; | ||
| + | } | ||
| + | |||
| + | host vm3 { | ||
| + | hardware ethernet 52:54:00:6f:2f:01; | ||
| + | fixed-address 10.1.1.5; | ||
| + | } | ||
| + | </file> | ||
| + | |||
| + | ===== Konfiguration relay ===== | ||
| + | Paket: | ||
| + | * Debian 7: ''isc-dhcp-relay'' | ||
| + | |||
| + | ''/etc/default/isc-dhcp-relay'' : | ||
| + | <file> | ||
| + | SERVERS="192.168.226.3" | ||
| + | |||
| + | # On what interfaces should the DHCP relay (dhrelay) serve DHCP requests? | ||
| + | # leave blank or enter all incoming and outgoing interfaces | ||
| + | INTERFACES="" | ||
| + | |||
| + | # Additional options that are passed to the DHCP relay daemon? | ||
| + | OPTIONS="" | ||
| + | </file> | ||
| + | |||
| /usr/sbin/dhcrelay -d 192.168.226.3 | /usr/sbin/dhcrelay -d 192.168.226.3 | ||