Thread Info
  • State Suggested Answer
  • Locked Locked
  • Replies 16 replies
  • Answers 1 answer
  • Subscribers 39 subscribers
  • Views 4430 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

IPv6: You cannot enter a network IP for Gateway IP

Khuram Raza

Greetings,

Sophos XG is not accepting my IPv6 config while all other devices including Windows and Linux Hosts accepts.

i get error "You cannot enter a network IP for Gateway IP"

my ISP assigned config as below 

IPv6 POOL-2401:0:4000::510/126
Gateway-2401:0:4000::510
Uesable-2401:0:4000::511~2401:0:4000::513

any ideas



This thread was automatically locked due to age.
  • 0 in reply to rfcat_vk

    agreed, ISP says it should work fine everywhere, dont know what they have configured. and it is working fine everywhere other than sophos 

  • 0 in reply to Khuram Raza

    Technically you have two addresses available and they are 511 and 512, 510 is a broadcast address and would not normally be used a gateway. This not just a sophos issue, it is a general networking design and it is not as if they are short of address space.  They appear to work like it is IP4 addressing and in short supply. All my networks using IP4 were done with a /30 network which is equivalent to your /126. My networks were all using Cisco routers.

    In theory this is basic networking 101. More updates.
    ian

    XG115W - v20 GA - Home

    XG on VM 8 - v20 GA

    If a post solves your question please use the 'Verify Answer' button.



    test of edit notes.
    [edited by: rfcat_vk at 10:45 AM (GMT -7) on 22 Sep 2020]
  • 0 in reply to emmosophos

    tried, doesn't work as 513 is a usable client IP not gateway's IP, see my Ubuntu screen below am using 513 IP there with gateway 510 working fine.

  • 0 in reply to Khuram Raza

    What you are actually saying is that your /126 in not really a true /126 on your ISP's network. You still didn't answer the question about the network range you are assigned for use on your internal network. There is no use having a IPv6 external interface address without being able to use an internal address. 

    Ian

    XG115W - v20 GA - Home

    XG on VM 8 - v20 GA

    If a post solves your question please use the 'Verify Answer' button.

  • 0 in reply to Khuram Raza

    Is it possible to set the gateway IP using a link local address?

  • 0 in reply to core_memory

    Yes, my isp does and the Mac mini does and so does the iPad.

    ian

    XG115W - v20 GA - Home

    XG on VM 8 - v20 GA

    If a post solves your question please use the 'Verify Answer' button.

Unfiltered HTML