{"id":2114,"date":"2011-09-15T21:43:00","date_gmt":"2011-09-15T19:43:00","guid":{"rendered":""},"modified":"2016-08-23T15:43:24","modified_gmt":"2016-08-23T13:43:24","slug":"secondary-ip-nicht-auf-vlans","status":"publish","type":"post","link":"https:\/\/wordpress.boc.de\/watchguard-info-portal\/2011\/09\/secondary-ip-nicht-auf-vlans\/","title":{"rendered":"Secondary IP nicht auf VLANs"},"content":{"rendered":"<p>Ich musste aktuell in einem Projekt feststellen, dass <span style=\"font-weight:bold;\">Secondary IPs nur auf physikalischen Interfaces<\/span> konfiguriert werden k\u00f6nnen, <span style=\"font-weight:bold;\">nicht aber auf VLANs<\/span>. Ich konfiguriere Secondary IPs z.B. sehr gerne auf External Interfaces, um damit mehrere (oder alle) vom Provider zugewiesenen externen IP-Adressen auf einem externem Interface verf\u00fcgbar zu machen, so dass diese f\u00fcr eingehenden Datenverkehr als Basis f\u00fcr einen SNAT-Eintrag (Statisches NAT oder Server Load Balancing) verwendet werden k\u00f6nnen.<br \/>In dem angesprochenen Projekt musste das neu hinzu kommende externe Interface aber auf einem VLAN-Interface konfiguriert werden. Hier konnte ich die weiteren IPs nur auf dem Weg \u00fcber 1-to-1-NAT Eintr\u00e4ge nachtr\u00e4glich verf\u00fcgbar machen, was aber nat\u00fcrlich deutlich weniger flexibel ist wie die typischen SNAT-Eintr\u00e4ge, die z.B. nur einen bestimmten Port einer IP-Adresse zu einem bestimmten internen Server weiterleiten&#8230;<\/p>\n<div class=\"shariff\"><ul class=\"shariff-buttons theme-default orientation-horizontal buttonsize-medium\"><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"mailto:?body=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2011%2F09%2Fsecondary-ip-nicht-auf-vlans%2F&subject=Secondary%20IP%20nicht%20auf%20VLANs\" title=\"Per E-Mail versenden\" aria-label=\"Per E-Mail versenden\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 32 32\"><path fill=\"#999\" d=\"M32 12.7v14.2q0 1.2-0.8 2t-2 0.9h-26.3q-1.2 0-2-0.9t-0.8-2v-14.2q0.8 0.9 1.8 1.6 6.5 4.4 8.9 6.1 1 0.8 1.6 1.2t1.7 0.9 2 0.4h0.1q0.9 0 2-0.4t1.7-0.9 1.6-1.2q3-2.2 8.9-6.1 1-0.7 1.8-1.6zM32 7.4q0 1.4-0.9 2.7t-2.2 2.2q-6.7 4.7-8.4 5.8-0.2 0.1-0.7 0.5t-1 0.7-0.9 0.6-1.1 0.5-0.9 0.2h-0.1q-0.4 0-0.9-0.2t-1.1-0.5-0.9-0.6-1-0.7-0.7-0.5q-1.6-1.1-4.7-3.2t-3.6-2.6q-1.1-0.7-2.1-2t-1-2.5q0-1.4 0.7-2.3t2.1-0.9h26.3q1.2 0 2 0.8t0.9 2z\"\/><\/svg><\/span><span class=\"shariff-text\">E-Mail<\/span>&nbsp;<\/a><\/li><li class=\"shariff-button linkedin shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2011%2F09%2Fsecondary-ip-nicht-auf-vlans%2F\" title=\"Bei LinkedIn teilen\" aria-label=\"Bei LinkedIn teilen\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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Ich konfiguriere Secondary IPs z.B. sehr gerne auf External Interfaces, um damit mehrere (oder alle) vom Provider zugewiesenen externen IP-Adressen auf einem externem Interface verf\u00fcgbar zu machen, so dass diese f\u00fcr eingehenden Datenverkehr als Basis f\u00fcr einen SNAT-Eintrag (Statisches NAT oder Server Load Balancing) &hellip; <a href=\"https:\/\/wordpress.boc.de\/watchguard-info-portal\/2011\/09\/secondary-ip-nicht-auf-vlans\/\" class=\"more-link\">Weiterlesen <span class=\"screen-reader-text\">Secondary IP nicht auf VLANs<\/span> <span class=\"meta-nav\">&raquo;<\/span><\/a><\/p>\n<div class=\"shariff\"><ul class=\"shariff-buttons theme-default orientation-horizontal buttonsize-medium\"><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"mailto:?body=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2011%2F09%2Fsecondary-ip-nicht-auf-vlans%2F&subject=Secondary%20IP%20nicht%20auf%20VLANs\" title=\"Per E-Mail versenden\" aria-label=\"Per E-Mail versenden\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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