{"id":5463,"date":"2023-11-25T10:00:00","date_gmt":"2023-11-25T10:00:00","guid":{"rendered":"https:\/\/netguide.io\/linux\/synology-allow-incoming-icmp-pings-in-the-firewall\/"},"modified":"2023-11-25T10:00:00","modified_gmt":"2023-11-25T10:00:00","slug":"synology-allow-incoming-icmp-pings-in-the-firewall","status":"publish","type":"post","link":"https:\/\/netguide.io\/linux\/en\/synology-allow-incoming-icmp-pings-in-the-firewall\/","title":{"rendered":"Synology: Allow incoming ICMP pings in the firewall"},"content":{"rendered":"<script type=\"text\/plain\" data-tcf=\"waiting-for-consent\" data-id=\"4797\" data-bid=\"2\" data-placement=\"4798\">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<\/script>\n<p class=\"wp-block-paragraph\">The Internet Control Message Protocol (ICMP) is used in computer networks to exchange information and error messages via the Internet Protocol (IP).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is also used, for example, to check the availability of network shares.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To allow these pings to reach the Synology, we need to create a firewall rule:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Control Panel -&gt; Security -&gt; Firewall -&gt; Edit rules -&gt; Create -&gt; Custom -&gt; Protocol -&gt; ICMP -&gt; Allow -&gt; OK -&gt; OK -&gt; Apply<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/netguide.io\/linux\/wp-content\/uploads\/sites\/2\/2026\/08\/synology-firewall-allow-icpm-2.png\" alt=\"\" class=\"wp-image-5461\" width=\"621\" height=\"541\" srcset=\"https:\/\/netguide.io\/linux\/wp-content\/uploads\/sites\/2\/2026\/08\/synology-firewall-allow-icpm-2.png 621w, \/wp-content\/uploads\/2023\/11\/synology-firewall-allow-icpm-2-300x261.png 300w\" sizes=\"auto, (max-width: 621px) 100vw, 621px\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"619\" height=\"538\" src=\"https:\/\/netguide.io\/linux\/wp-content\/uploads\/sites\/2\/2026\/08\/synology-firewall-allow-icmp.png\" alt=\"\" class=\"wp-image-5462\" srcset=\"https:\/\/netguide.io\/linux\/wp-content\/uploads\/sites\/2\/2026\/08\/synology-firewall-allow-icmp.png 619w, https:\/\/netguide.io\/linux\/wp-content\/uploads\/sites\/2\/2026\/08\/synology-firewall-allow-icmp-300x261.png 300w\" sizes=\"auto, (max-width: 619px) 100vw, 619px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Now you can ping the NAS again.<\/p>\n<script type=\"text\/plain\" data-tcf=\"waiting-for-consent\" data-id=\"4799\" data-bid=\"2\" data-placement=\"4800\">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<\/script>","protected":false},"excerpt":{"rendered":"<p>By default a Synology NAS silently drops incoming ICMP echo requests, so pings time out. Here is the firewall rule that lets you ping your Synology NAS again.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_affilinode_tracking":"","_affilinode_autolink_off":false,"_affilinode_rating":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[7],"tags":[],"class_list":["post-5463","post","type-post","status-publish","format-standard","hentry","category-uncategorized-en"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"Tobias","author_link":"https:\/\/netguide.io\/linux\/author\/tobias-pries\/"},"uagb_comment_info":0,"uagb_excerpt":"By default a Synology NAS silently drops incoming ICMP echo requests, so pings time out. Here is the firewall rule that lets you ping your Synology NAS again.","brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/posts\/5463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/comments?post=5463"}],"version-history":[{"count":0,"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/posts\/5463\/revisions"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/media?parent=5463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/categories?post=5463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/linux\/wp-json\/wp\/v2\/tags?post=5463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}