{"action":"created","comment":{"url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/comments/57257599","id":57257599,"diff_hunk":"@@ -458,12 +459,18 @@ void gnrc_ndp_rtr_sol_handle(kernel_pid_t iface, gnrc_pktsnip_t *pkt,\n                 /* or unicast, if source is known */\n                 /* XXX: can't just use GNRC_NETAPI_MSG_TYPE_SND, since the next retransmission\n                  * must also be set. */\n-                gnrc_ipv6_nc_t *nc_entry = gnrc_ipv6_nc_get(iface, &ipv6->src);\n+                nc_entry = gnrc_ipv6_nc_get(iface, &ipv6->src);\n                 xtimer_set_msg(&nc_entry->rtr_adv_timer, delay, &nc_entry->rtr_adv_msg,\n                                gnrc_ipv6_pid);\n             }\n #endif\n         }\n+        nc_entry = gnrc_ipv6_nc_get(iface, &ipv6->src);\n+        if (nc_entry != NULL) {","path":"sys/net/gnrc/network_layer/ndp/gnrc_ndp.c","position":20,"original_position":20,"commit_id":"5c20e02409faadbd4749dfb423e011708464e374","original_commit_id":"5c20e02409faadbd4749dfb423e011708464e374","user":{"login":"authmillenon","id":675644,"avatar_url":"https://avatars.githubusercontent.com/u/675644?v=3","gravatar_id":"","url":"https://api.github.com/users/authmillenon","html_url":"https://github.com/authmillenon","followers_url":"https://api.github.com/users/authmillenon/followers","following_url":"https://api.github.com/users/authmillenon/following{/other_user}","gists_url":"https://api.github.com/users/authmillenon/gists{/gist_id}","starred_url":"https://api.github.com/users/authmillenon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/authmillenon/subscriptions","organizations_url":"https://api.github.com/users/authmillenon/orgs","repos_url":"https://api.github.com/users/authmillenon/repos","events_url":"https://api.github.com/users/authmillenon/events{/privacy}","received_events_url":"https://api.github.com/users/authmillenon/received_events","type":"User","site_admin":false},"body":"Because above the entry is definitely created before in https://github.com/RIOT-OS/RIOT/pull/5139/files#diff-c668f2091e40b20cfc8d5c4b5aeca3e1R401. This needs not be the case here, because this line is not passed, when sending of RAs is deactivated for this interface.","created_at":"2016-03-24T00:02:56Z","updated_at":"2016-03-24T00:02:56Z","html_url":"https://github.com/RIOT-OS/RIOT/pull/5139#discussion_r57257599","pull_request_url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139","_links":{"self":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/comments/57257599"},"html":{"href":"https://github.com/RIOT-OS/RIOT/pull/5139#discussion_r57257599"},"pull_request":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139"}}},"pull_request":{"url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139","id":63776128,"html_url":"https://github.com/RIOT-OS/RIOT/pull/5139","diff_url":"https://github.com/RIOT-OS/RIOT/pull/5139.diff","patch_url":"https://github.com/RIOT-OS/RIOT/pull/5139.patch","issue_url":"https://api.github.com/repos/RIOT-OS/RIOT/issues/5139","number":5139,"state":"open","locked":false,"title":"gnrc_ndp: unset isRouter flag for neighbor sending RS","user":{"login":"authmillenon","id":675644,"avatar_url":"https://avatars.githubusercontent.com/u/675644?v=3","gravatar_id":"","url":"https://api.github.com/users/authmillenon","html_url":"https://github.com/authmillenon","followers_url":"https://api.github.com/users/authmillenon/followers","following_url":"https://api.github.com/users/authmillenon/following{/other_user}","gists_url":"https://api.github.com/users/authmillenon/gists{/gist_id}","starred_url":"https://api.github.com/users/authmillenon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/authmillenon/subscriptions","organizations_url":"https://api.github.com/users/authmillenon/orgs","repos_url":"https://api.github.com/users/authmillenon/repos","events_url":"https://api.github.com/users/authmillenon/events{/privacy}","received_events_url":"https://api.github.com/users/authmillenon/received_events","type":"User","site_admin":false},"body":"After re-reading the RFCs this kept me thinking. When implementing handling of RFCs I disregarded this behavior as not suitable for mesh networks since this would basically take every neighboring router out of the default router list of the node. But I'm not so sure this is the case here: When bootstrapping the network a router only multicasts router solicitations on it's initialization to find its upstream router. Only the upstream router would then disregard the down-stream router as one of its default routers, since it wants to send information out of then network in normal cases (see our confusion at the border router, where it sometimes prefers to send to one of its downstream routers instead out of the network). I did not find any specific information on this in RFC 6775 so I'm getting the feeling I'm on the right track with this.","created_at":"2016-03-22T19:10:08Z","updated_at":"2016-03-24T00:02:56Z","closed_at":null,"merged_at":null,"merge_commit_sha":"93b9e75bcb7177fbb53547c74bfedf5804e5a294","assignee":{"login":"OlegHahm","id":1590423,"avatar_url":"https://avatars.githubusercontent.com/u/1590423?v=3","gravatar_id":"","url":"https://api.github.com/users/OlegHahm","html_url":"https://github.com/OlegHahm","followers_url":"https://api.github.com/users/OlegHahm/followers","following_url":"https://api.github.com/users/OlegHahm/following{/other_user}","gists_url":"https://api.github.com/users/OlegHahm/gists{/gist_id}","starred_url":"https://api.github.com/users/OlegHahm/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/OlegHahm/subscriptions","organizations_url":"https://api.github.com/users/OlegHahm/orgs","repos_url":"https://api.github.com/users/OlegHahm/repos","events_url":"https://api.github.com/users/OlegHahm/events{/privacy}","received_events_url":"https://api.github.com/users/OlegHahm/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/RIOT-OS/RIOT/milestones/13","html_url":"https://github.com/RIOT-OS/RIOT/milestones/Release%202016.04","labels_url":"https://api.github.com/repos/RIOT-OS/RIOT/milestones/13/labels","id":1447832,"number":13,"title":"Release 2016.04","description":"The next major release.","creator":{"login":"OlegHahm","id":1590423,"avatar_url":"https://avatars.githubusercontent.com/u/1590423?v=3","gravatar_id":"","url":"https://api.github.com/users/OlegHahm","html_url":"https://github.com/OlegHahm","followers_url":"https://api.github.com/users/OlegHahm/followers","following_url":"https://api.github.com/users/OlegHahm/following{/other_user}","gists_url":"https://api.github.com/users/OlegHahm/gists{/gist_id}","starred_url":"https://api.github.com/users/OlegHahm/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/OlegHahm/subscriptions","organizations_url":"https://api.github.com/users/OlegHahm/orgs","repos_url":"https://api.github.com/users/OlegHahm/repos","events_url":"https://api.github.com/users/OlegHahm/events{/privacy}","received_events_url":"https://api.github.com/users/OlegHahm/received_events","type":"User","site_admin":false},"open_issues":139,"closed_issues":335,"state":"open","created_at":"2015-12-07T14:56:18Z","updated_at":"2016-03-23T23:06:09Z","due_on":"2016-04-14T22:00:00Z","closed_at":null},"commits_url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139/commits","review_comments_url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139/comments","review_comment_url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/comments{/number}","comments_url":"https://api.github.com/repos/RIOT-OS/RIOT/issues/5139/comments","statuses_url":"https://api.github.com/repos/RIOT-OS/RIOT/statuses/5c20e02409faadbd4749dfb423e011708464e374","head":{"label":"authmillenon:gnrc_ndp/fix/unset-isrouter-on-rtr-sol","ref":"gnrc_ndp/fix/unset-isrouter-on-rtr-sol","sha":"5c20e02409faadbd4749dfb423e011708464e374","user":{"login":"authmillenon","id":675644,"avatar_url":"https://avatars.githubusercontent.com/u/675644?v=3","gravatar_id":"","url":"https://api.github.com/users/authmillenon","html_url":"https://github.com/authmillenon","followers_url":"https://api.github.com/users/authmillenon/followers","following_url":"https://api.github.com/users/authmillenon/following{/other_user}","gists_url":"https://api.github.com/users/authmillenon/gists{/gist_id}","starred_url":"https://api.github.com/users/authmillenon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/authmillenon/subscriptions","organizations_url":"https://api.github.com/users/authmillenon/orgs","repos_url":"https://api.github.com/users/authmillenon/repos","events_url":"https://api.github.com/users/authmillenon/events{/privacy}","received_events_url":"https://api.github.com/users/authmillenon/received_events","type":"User","site_admin":false},"repo":{"id":7667624,"name":"RIOT","full_name":"authmillenon/RIOT","owner":{"login":"authmillenon","id":675644,"avatar_url":"https://avatars.githubusercontent.com/u/675644?v=3","gravatar_id":"","url":"https://api.github.com/users/authmillenon","html_url":"https://github.com/authmillenon","followers_url":"https://api.github.com/users/authmillenon/followers","following_url":"https://api.github.com/users/authmillenon/following{/other_user}","gists_url":"https://api.github.com/users/authmillenon/gists{/gist_id}","starred_url":"https://api.github.com/users/authmillenon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/authmillenon/subscriptions","organizations_url":"https://api.github.com/users/authmillenon/orgs","repos_url":"https://api.github.com/users/authmillenon/repos","events_url":"https://api.github.com/users/authmillenon/events{/privacy}","received_events_url":"https://api.github.com/users/authmillenon/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/authmillenon/RIOT","description":"RIOT OS -  The revolutionary IoT OS","fork":true,"url":"https://api.github.com/repos/authmillenon/RIOT","forks_url":"https://api.github.com/repos/authmillenon/RIOT/forks","keys_url":"https://api.github.com/repos/authmillenon/RIOT/keys{/key_id}","collaborators_url":"https://api.github.com/repos/authmillenon/RIOT/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/authmillenon/RIOT/teams","hooks_url":"https://api.github.com/repos/authmillenon/RIOT/hooks","issue_events_url":"https://api.github.com/repos/authmillenon/RIOT/issues/events{/number}","events_url":"https://api.github.com/repos/authmillenon/RIOT/events","assignees_url":"https://api.github.com/repos/authmillenon/RIOT/assignees{/user}","branches_url":"https://api.github.com/repos/authmillenon/RIOT/branches{/branch}","tags_url":"https://api.github.com/repos/authmillenon/RIOT/tags","blobs_url":"https://api.github.com/repos/authmillenon/RIOT/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/authmillenon/RIOT/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/authmillenon/RIOT/git/refs{/sha}","trees_url":"https://api.github.com/repos/authmillenon/RIOT/git/trees{/sha}","statuses_url":"https://api.github.com/repos/authmillenon/RIOT/statuses/{sha}","languages_url":"https://api.github.com/repos/authmillenon/RIOT/languages","stargazers_url":"https://api.github.com/repos/authmillenon/RIOT/stargazers","contributors_url":"https://api.github.com/repos/authmillenon/RIOT/contributors","subscribers_url":"https://api.github.com/repos/authmillenon/RIOT/subscribers","subscription_url":"https://api.github.com/repos/authmillenon/RIOT/subscription","commits_url":"https://api.github.com/repos/authmillenon/RIOT/commits{/sha}","git_commits_url":"https://api.github.com/repos/authmillenon/RIOT/git/commits{/sha}","comments_url":"https://api.github.com/repos/authmillenon/RIOT/comments{/number}","issue_comment_url":"https://api.github.com/repos/authmillenon/RIOT/issues/comments{/number}","contents_url":"https://api.github.com/repos/authmillenon/RIOT/contents/{+path}","compare_url":"https://api.github.com/repos/authmillenon/RIOT/compare/{base}...{head}","merges_url":"https://api.github.com/repos/authmillenon/RIOT/merges","archive_url":"https://api.github.com/repos/authmillenon/RIOT/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/authmillenon/RIOT/downloads","issues_url":"https://api.github.com/repos/authmillenon/RIOT/issues{/number}","pulls_url":"https://api.github.com/repos/authmillenon/RIOT/pulls{/number}","milestones_url":"https://api.github.com/repos/authmillenon/RIOT/milestones{/number}","notifications_url":"https://api.github.com/repos/authmillenon/RIOT/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/authmillenon/RIOT/labels{/name}","releases_url":"https://api.github.com/repos/authmillenon/RIOT/releases{/id}","deployments_url":"https://api.github.com/repos/authmillenon/RIOT/deployments","created_at":"2013-01-17T14:31:57Z","updated_at":"2015-05-01T13:02:29Z","pushed_at":"2016-03-23T23:57:16Z","git_url":"git://github.com/authmillenon/RIOT.git","ssh_url":"git@github.com:authmillenon/RIOT.git","clone_url":"https://github.com/authmillenon/RIOT.git","svn_url":"https://github.com/authmillenon/RIOT","homepage":null,"size":26627,"stargazers_count":0,"watchers_count":0,"language":"C","has_issues":false,"has_downloads":true,"has_wiki":true,"has_pages":false,"forks_count":0,"mirror_url":null,"open_issues_count":0,"forks":0,"open_issues":0,"watchers":0,"default_branch":"master"}},"base":{"label":"RIOT-OS:master","ref":"master","sha":"9dcde95f4ed776a26a6f5af2b83d22e339b9c36b","user":{"login":"RIOT-OS","id":3079480,"avatar_url":"https://avatars.githubusercontent.com/u/3079480?v=3","gravatar_id":"","url":"https://api.github.com/users/RIOT-OS","html_url":"https://github.com/RIOT-OS","followers_url":"https://api.github.com/users/RIOT-OS/followers","following_url":"https://api.github.com/users/RIOT-OS/following{/other_user}","gists_url":"https://api.github.com/users/RIOT-OS/gists{/gist_id}","starred_url":"https://api.github.com/users/RIOT-OS/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/RIOT-OS/subscriptions","organizations_url":"https://api.github.com/users/RIOT-OS/orgs","repos_url":"https://api.github.com/users/RIOT-OS/repos","events_url":"https://api.github.com/users/RIOT-OS/events{/privacy}","received_events_url":"https://api.github.com/users/RIOT-OS/received_events","type":"Organization","site_admin":false},"repo":{"id":7370241,"name":"RIOT","full_name":"RIOT-OS/RIOT","owner":{"login":"RIOT-OS","id":3079480,"avatar_url":"https://avatars.githubusercontent.com/u/3079480?v=3","gravatar_id":"","url":"https://api.github.com/users/RIOT-OS","html_url":"https://github.com/RIOT-OS","followers_url":"https://api.github.com/users/RIOT-OS/followers","following_url":"https://api.github.com/users/RIOT-OS/following{/other_user}","gists_url":"https://api.github.com/users/RIOT-OS/gists{/gist_id}","starred_url":"https://api.github.com/users/RIOT-OS/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/RIOT-OS/subscriptions","organizations_url":"https://api.github.com/users/RIOT-OS/orgs","repos_url":"https://api.github.com/users/RIOT-OS/repos","events_url":"https://api.github.com/users/RIOT-OS/events{/privacy}","received_events_url":"https://api.github.com/users/RIOT-OS/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/RIOT-OS/RIOT","description":"RIOT -  The friendly OS for IoT","fork":false,"url":"https://api.github.com/repos/RIOT-OS/RIOT","forks_url":"https://api.github.com/repos/RIOT-OS/RIOT/forks","keys_url":"https://api.github.com/repos/RIOT-OS/RIOT/keys{/key_id}","collaborators_url":"https://api.github.com/repos/RIOT-OS/RIOT/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/RIOT-OS/RIOT/teams","hooks_url":"https://api.github.com/repos/RIOT-OS/RIOT/hooks","issue_events_url":"https://api.github.com/repos/RIOT-OS/RIOT/issues/events{/number}","events_url":"https://api.github.com/repos/RIOT-OS/RIOT/events","assignees_url":"https://api.github.com/repos/RIOT-OS/RIOT/assignees{/user}","branches_url":"https://api.github.com/repos/RIOT-OS/RIOT/branches{/branch}","tags_url":"https://api.github.com/repos/RIOT-OS/RIOT/tags","blobs_url":"https://api.github.com/repos/RIOT-OS/RIOT/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/RIOT-OS/RIOT/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/RIOT-OS/RIOT/git/refs{/sha}","trees_url":"https://api.github.com/repos/RIOT-OS/RIOT/git/trees{/sha}","statuses_url":"https://api.github.com/repos/RIOT-OS/RIOT/statuses/{sha}","languages_url":"https://api.github.com/repos/RIOT-OS/RIOT/languages","stargazers_url":"https://api.github.com/repos/RIOT-OS/RIOT/stargazers","contributors_url":"https://api.github.com/repos/RIOT-OS/RIOT/contributors","subscribers_url":"https://api.github.com/repos/RIOT-OS/RIOT/subscribers","subscription_url":"https://api.github.com/repos/RIOT-OS/RIOT/subscription","commits_url":"https://api.github.com/repos/RIOT-OS/RIOT/commits{/sha}","git_commits_url":"https://api.github.com/repos/RIOT-OS/RIOT/git/commits{/sha}","comments_url":"https://api.github.com/repos/RIOT-OS/RIOT/comments{/number}","issue_comment_url":"https://api.github.com/repos/RIOT-OS/RIOT/issues/comments{/number}","contents_url":"https://api.github.com/repos/RIOT-OS/RIOT/contents/{+path}","compare_url":"https://api.github.com/repos/RIOT-OS/RIOT/compare/{base}...{head}","merges_url":"https://api.github.com/repos/RIOT-OS/RIOT/merges","archive_url":"https://api.github.com/repos/RIOT-OS/RIOT/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/RIOT-OS/RIOT/downloads","issues_url":"https://api.github.com/repos/RIOT-OS/RIOT/issues{/number}","pulls_url":"https://api.github.com/repos/RIOT-OS/RIOT/pulls{/number}","milestones_url":"https://api.github.com/repos/RIOT-OS/RIOT/milestones{/number}","notifications_url":"https://api.github.com/repos/RIOT-OS/RIOT/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/RIOT-OS/RIOT/labels{/name}","releases_url":"https://api.github.com/repos/RIOT-OS/RIOT/releases{/id}","deployments_url":"https://api.github.com/repos/RIOT-OS/RIOT/deployments","created_at":"2012-12-29T20:38:40Z","updated_at":"2016-03-23T05:51:26Z","pushed_at":"2016-03-23T23:57:16Z","git_url":"git://github.com/RIOT-OS/RIOT.git","ssh_url":"git@github.com:RIOT-OS/RIOT.git","clone_url":"https://github.com/RIOT-OS/RIOT.git","svn_url":"https://github.com/RIOT-OS/RIOT","homepage":"https://github.com/RIOT-OS/RIOT/wiki","size":87058,"stargazers_count":714,"watchers_count":714,"language":"C","has_issues":true,"has_downloads":true,"has_wiki":true,"has_pages":false,"forks_count":526,"mirror_url":null,"open_issues_count":453,"forks":526,"open_issues":453,"watchers":714,"default_branch":"master"}},"_links":{"self":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139"},"html":{"href":"https://github.com/RIOT-OS/RIOT/pull/5139"},"issue":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/issues/5139"},"comments":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/issues/5139/comments"},"review_comments":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139/comments"},"review_comment":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/comments{/number}"},"commits":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/pulls/5139/commits"},"statuses":{"href":"https://api.github.com/repos/RIOT-OS/RIOT/statuses/5c20e02409faadbd4749dfb423e011708464e374"}}}}