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2
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0answers
61 views

Why “scope link” ipv6 address can be pinged via interfaces which they are not active on

[root@2_01 ~]# /sbin/ip -6 addr show pubeth0 inet6 2001:1::6/64 scope global inet6 2001:1::1/64 scope global inet6 fe80::20c:29ff:fe69:f9e8/64 scope link [root@v2_01 ~]# /sbin/ip -6 addr show ...
1
vote
0answers
40 views

How is the route scope parameter used?

I am confused about the route scope parameter in the output if /sbin/ip route. default via 10.32.10.1 dev wlan0 proto static 10.32.10.0/24 dev wlan0 proto kernel scope link src 10.32.10.154 ...
1
vote
3answers
3k views

IPv6 hosts configure default route with router's link-local address

I have recently added IPv6 to our network as per the instructions at http://www.chronos-tachyon.net/reference/debian-ipv6-and-hurricane-electric. However, the hosts on the network automatically ...
0
votes
1answer
416 views

Permanently assigning IP address for an embedded device

This is a follow-up to Embedded device configured with bad IP address, can I still connect? We make embedded devices that run Linux. Users can change the networking configuration of the device ...
1
vote
1answer
4k views

Can't ping using IPv6 address

My network setup is very simple: two win7-64 machines connected to a switch. IPv6 enabled for their network interface. No router no outside network no DHCP. ipconfig report for the computer shows ...
1
vote
1answer
1k views

Disable inet6 link-local address from one interface

Anyone know how I can disable the link-local address from just one interface on CentOS 5.6? This is what I tried: root-> egrep -i ipv6 /etc/sysconfig/network-scripts/ifcfg-eth0 IPV6INIT=no ...
0
votes
4answers
962 views

Unable to receive UDP packets from a link-local address [closed]

I have a program which attempts to contact to an embedded device over UDP. The embedded device has a link-local address only (169.254..); the Linux host has a normal (DHCP, RFC1918) address, managed ...
1
vote
1answer
1k views

IPv6 link-local routing

"Routers do not forward packets with link-local addresses." says Wikipedia (http://en.wikipedia.org/wiki/Link-local_address) What I want to know is: that makes sense if the destination is a ...
1
vote
1answer
2k views

Difference between link-local and global link addresses in ISATAP

What is the difference between link-local address and global link address in ISATAP? For example: link-local address: fe80::5efe:c000:0201 global address: 3ffe:b00:1:2::5efe:c000:0201 Why don't ...
2
votes
2answers
1k views

How to find a rogue machine on your network with the wrong ip address

I'm continuing to lock down my network gear using the DISA standards. After implementing an ACL on a multi-layer switch that denies access to unknown subnets, the syslog server started recording two ...
4
votes
2answers
3k views

IPv6 can I use a link local address as my default Gateway?

can I set the default GW to be the Link Local address of the next hop router. I understand this is a strange thing to do, I'm mostly wondering it is possible?
0
votes
1answer
7k views

What is a link-local address?

I could find some information in the Internet but it is hard for me to understand this information because of usage of technical words. Could somebody, pleas, help me with that? Did I correctly got ...
2
votes
3answers
2k views

How can I avoid Mac OS X temporarily setting its IP in the “link-local” range (169.254.x.x) at boot time?

I have a DNS and DHCP server (Linux machine) managing my LAN addresses and names. Everything is configured and fully working once the clients are up and running, having every Mac OS X client a DHCP ...