{"id":670,"date":"2015-03-13T12:58:46","date_gmt":"2015-03-13T10:58:46","guid":{"rendered":"http:\/\/dety.net.ua\/?p=670"},"modified":"2015-03-13T12:59:59","modified_gmt":"2015-03-13T10:59:59","slug":"pfsense-dhcp-issues-from-provider","status":"publish","type":"post","link":"https:\/\/dety.net.ua\/?p=670","title":{"rendered":"PFSense + DHCP issues from provider"},"content":{"rendered":"

I met a strange issue with an internet channel from my provider: it doesn’t assign an IP (PFSense gets 0.0.0.0 and the provider blocks me) via DHCP or the channel stops working(IP is assigned).<\/p>\n

I suppose provider has got several DHCP-servers and they are configured with to much security.<\/p>\n

So, I wrote a script to detect these issues, change a mac and reset dhcp-client:<\/p>\n

#!\/bin\/sh<\/p>\n

# Prepare a mail
\necho “To: admin@contoso.com” > \/usr\/local\/etc\/mail2.txt
\necho “From: admin@mydomain.com” >> \/usr\/local\/etc\/mail2.txt
\necho “Subject: DHCP RESET” >> \/usr\/local\/etc\/mail2.txt
\necho “text” >> \/usr\/local\/etc\/mail2.txt<\/p>\n

# Check ping
\nping -c 2 -S 8.8.8.50 8.8.8.1 >\/dev\/null 2>&1
\nif [ $? -eq 0 ]; then
\necho ” Ping [OK]”
\nISP1_stat=”0″
\necho “Ping OK, checking the DHCP …” >> \/usr\/local\/etc\/mail2.txt
\nelse
\necho ” Ping [FAILED]”
\nISP1_stat=”1″
\necho “Ping failed” >> \/usr\/local\/etc\/mail2.txt
\nfi<\/p>\n

# Get IP-address for rl0
\nmac=`ifconfig rl0 | grep ether | awk ‘{print $2}’`
\nip=`ifconfig rl0 | grep “inet ” | awk ‘{print $2}’`
\necho $ip $mac
\nif [ “$ip” == “” ] || [ “$ip” == “0.0.0.0” ] || [ “$ISP1_stat” == “1” ]; then
\necho “No IP assigned for rl0 … \/n Resetting MAC … \/n”
\nifconfig rl0 down
\nif [ “$mac” -eq “c8:d3:a3:83:c9:a2” ]; then
\nifconfig rl0 ether c8:d3:a3:83:c9:a3
\nfi
\nif [ “$mac” -eq “c8:d3:a3:83:c9:a3” ]; then
\nifconfig rl0 ether c8:d3:a3:83:c9:a2
\nfi
\nifconfig rl0 up
\nkillall dhclient
\ndhclient rl0
\n\/usr\/local\/sbin\/ssmtp admin@contoso.com < \/usr\/local\/etc\/mail2.txt
\nfi
\necho $ISP1_STAT
\necho “rl0 ip: $ip – everything is ok.”<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

I met a strange issue with an internet channel from my provider: it doesn’t assign an IP (PFSense gets 0.0.0.0 and the provider blocks me) via DHCP or the channel stops working(IP is assigned). I suppose provider has got several DHCP-servers and they are configured with to much security. So, I wrote a script to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,13],"tags":[],"class_list":["post-670","post","type-post","status-publish","format-standard","hentry","category-freebsd","category-novosti"],"_links":{"self":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=670"}],"version-history":[{"count":3,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/670\/revisions"}],"predecessor-version":[{"id":673,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/670\/revisions\/673"}],"wp:attachment":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}