Skip navigation
Cisco Learning Home > Certifications > CCIE Routing & Switching > Discussions

_Communities

This Question is Answered 2 Helpful Answers available (2 pts)
2212 Views 4 Replies Latest reply: Feb 6, 2011 7:12 PM by Scott Morris - CCDE/4xCCIE/2xJNCIE RSS

Currently Being Moderated

Frame relay: IPv4 vs IPv6

Feb 6, 2011 8:34 AM

Trony 15 posts since
Oct 10, 2009

I know this is simple but I can't figure this out.  I have the same configuration with IPv4 and IPv6 in regards to the frame relay setup but I CAN'T ping R3 <--> R2 using IPv6 but I can via IPv4.  It could be my config but I could be wrong or it might be how IPv6 behaves but at the moment I can't see why.

 

Configs below.

 

Thanks in advance.

 

print.png

 

R1#show run int s0/0

Building configuration...

 

 

Current configuration : 335 bytes

!

interface Serial0/0

ip address 172.16.123.1 255.255.255.0

encapsulation frame-relay

ipv6 address FEC0::123:1/120

ipv6 enable

serial restart-delay 0

frame-relay map ipv6 FEC0::123:2 102

frame-relay map ipv6 FEC0::123:3 103

frame-relay map ip 172.16.123.2 102

frame-relay map ip 172.16.123.3 103

no frame-relay inverse-arp

end

 

 

R1#

 

 

 

 

R2#show run int s0/0

Building configuration...

 

 

Current configuration : 335 bytes

!

interface Serial0/0

ip address 172.16.123.2 255.255.255.0

encapsulation frame-relay

ipv6 address FEC0::123:2/120

ipv6 enable

serial restart-delay 0

frame-relay map ipv6 FEC0::123:1 201

frame-relay map ipv6 FEC0::123:3 201

frame-relay map ip 172.16.123.1 201

frame-relay map ip 172.16.123.3 201

no frame-relay inverse-arp

end

 

 

R2#

 

 

R3#show run int s0/0

Building configuration...

 

 

Current configuration : 335 bytes

!

interface Serial0/0

ip address 172.16.123.3 255.255.255.0

encapsulation frame-relay

ipv6 address FEC0::123:3/120

ipv6 enable

serial restart-delay 0

frame-relay map ipv6 FEC0::123:1 301

frame-relay map ipv6 FEC0::123:2 301

frame-relay map ip 172.16.123.1 301

frame-relay map ip 172.16.123.2 301

no frame-relay inverse-arp

end

 

 

R3#

  • Currently Being Moderated
    1. Feb 6, 2011 9:10 AM (in response to Trony)
    Re: Frame relay: IPv4 vs IPv6

    With IPv6 on Frame relay, you'll need two mappings.  Both for the link-local IPv6 address, as well as the next-hop IP. 

     

    Also, did you enable ipv6 routing on your devices?

  • Conwyn 7,914 posts since
    Sep 10, 2008
    Currently Being Moderated
    3. Feb 6, 2011 12:24 PM (in response to Trony)
    Re: Frame relay: IPv4 vs IPv6

    Hi Trony

     

    Travis may be speaking of something specific to your setup but below only has a single map.

     

    Regards Conwyn

     

     

    interface Serial0/0

    no ip address

    encapsulation frame-relay

    ipv6 address 2001:DB8:AAAA::1/64

    ipv6 address my-prefix 2001:DB8:0:7272::72/64

    ipv6 rip cisco enable

    clock rate 64000

    cdp enable

    frame-relay map ipv6 2001:DB8:AAAA::2 16

    frame-relay interface-dlci 16

    frame-relay intf-type dce

     

    Frame#show cdp entry * pro

    Protocol information for Spoke :

      IPv6 address: 2001:DB8:AAAA::2  (global unicast)

      IPv6 address: FE80::C201:1EFF:FEC8:0  (link-local)

  • Scott Morris - CCDE/4xCCIE/2xJNCIE 8,396 posts since
    Oct 7, 2008
    Currently Being Moderated
    4. Feb 6, 2011 7:12 PM (in response to Trony)
    Re: Frame relay: IPv4 vs IPv6

    One neat thing to think about (other than the parts that you have already discovered here!) is that you can use "debug ipv6 packet" very much like you do "debug ip packet" so you can receive those exciting messages about "encapsulation failed", which will at least lead you towards a mapping issue!

     

    HTH,

     

    Scott

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)