Tag: IPv6

IPv6 Reverse DNS Delegation Zone (BIND)

/etc/named.conf options options { listen-on port 53 { 127.0.0.1; }; listen-on-v6 port 53 { ::1; 2000:5a40:0:1::136; }; directory “/var/named”; dump-file “/var/named/data/cache_dump.db”; statistics-file “/var/named/data/named_stats.txt”; memstatistics-file “/var/named/data/named_mem_stats.txt”; allow-query { localhost; 2000:5a40::/32; }; allow-query-cache { localhost; 2000:5a40::/32; }; recursion yes; Zone file announcment zone “0.4.a.5.0.0.0.2.ip6.arpa” IN { type master; file “reverse-2000:5A40”; allow-update { none; }; allow-query { any;…

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Regenerating Link Local IPv6 Addresses in Mikrotik

IPv6 link local address generate automatically if IPv6 package is enabled.  For enabling IPv6 you may follow this post [admin@Mikrotik] > /ipv6 address print Flags: X – disabled, I – invalid, D – dynamic, G – global, L – link-local # ADDRESS FROM-POOL INTERFACE 0 DL fe80::e97:42ff:fef5:7a00/64 ether1 1 DL fe80::e97:42ff:fef5:7a03/64 ether4 2 DL fe80::e97:42ff:fef5:7a01/64…

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DHCPv6: CentOS 7 Server & Mikrotik Client

IPv6 DHCP configuration with CentOS 7 as DHCP server and Mikrotik as DHCPv6 client. Note: Assumed you already have configured an IPv6 from subnet  on server interface. You may follow this guide. Subnet:  2000:5a40:0:12::/64 Gateway IP: 2000:5a40:0:12::1/64 Subnet Range: 2000:5a40:0:12::100-200   Verify that, DHCP package is installed # yum list installed | grep dhcp dhcp.x86_64 12:4.2.5-68.el7.centos.1 @updates dhcp-common.x86_64 12:4.2.5-68.el7.centos.1…

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Static IPv6 Configuration on CentOS 7

Enabling IPv6 IPv6 enabled on CentOS 7 by default. You can verify status # cat /proc/net/if_inet6 00000000000000000000000000000001 01 80 10 80 lo 24015a40000000120000000000000100 02 40 00 80 ens33 fe80000000000000020c29fffe5c6601 03 40 20 80 ens38 fe80000000000000020c29fffe5c66f7 02 40 20 80 ens33 If /proc/net/if_inet6 doesn’t exist try to load the kernel module # modprobe ipv6 # lsmod |…

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