bgp connection between 2 Nodes with IPv6 on global IPs and want to route via global ipv6 address not via ipv6 link local address
Hi All, BGP connection between 2 Nodes with IPv6 on global IPs and want to route via global ipv6 address not via ipv6 link local address I have made the bgp connection with global ipv6 address of interface and advertising the ipv6 route when advertising the route then bgp route added on Node2 for *2003:4001:5001::/64 via **fe80::6548:ed45:d5d:b578:link address of Node1 **but i want route with via * *5001:1::9 global ipv6 address (**2003:4001:5001::/64 via **5001:1::9) * Similarly when we advertise 8001:1::/64 from Node2, *So want help so that I can achieve the bgp route added on Node1 and Node2 via global ipv6 address not with ipv6 link address* 2003:4001:5001::/64 ------------[Node1]<===========================>[Node2]------------- 8001:1::/64 ASN:65001 ASN:65002 *5001:1::9:global * *5001:1::10:global* *fe80::6548:ed45:d5d:b578:link * *fe80::2938:1046:591:8387:link* *[Node1 configuration and interface info]* [root@localhost centosecmp]#* ifconfig ens5|grep inet* inet 10.5.10.9 netmask 255.255.255.0 broadcast 10.5.10.255 *inet6 5001:1::9 prefixlen 64 scopeid 0x0<global>* *inet6 fe80::6548:ed45:d5d:b578 prefixlen 64 scopeid 0x20<link>* localhost.localdomain(config-router)# *do show running-config* Building configuration... Current configuration: ! frr version 7.2 frr defaults traditional hostname localhost.localdomain ! *router bgp 65001 bgp router-id 1.1.1.1 no bgp default ipv4-unicast neighbor 5001:1::10 remote-as 65002 ! address-family ipv6 unicast network 2003:4001:5001::/64 neighbor 5001:1::10 activate exit-address-family* ! line vty ! end localhost.localdomain(config-router)#* do show ip bgp ipv6 summary* IPv6 Unicast Summary: BGP router identifier 1.1.1.1, local AS number 65001 vrf-id 0 BGP table version 2 RIB entries 3, using 552 bytes of memory Peers 1, using 20 KiB of memory Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd *5001:1::10 4 65002 7 7 0 0 0 00:02:13 1* Total number of neighbors 1 localhost.localdomain(config-router)# *do show ipv6 route bgp* Codes: K - kernel route, C - connected, S - static, R - RIPng, O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, f - OpenFabric, > - selected route, * - FIB route, q - queued route, r - rejected route *B>* 8001:1::/64 [20/0] via fe80::2938:1046:591:8387, ens5, 00:02:19* *[Node2 configuration and interface info]* [root@localhost centosecmp]# *ifconfig ens4|grep inet* inet 10.5.10.10 netmask 255.255.255.0 broadcast 10.5.10.255 *inet6 fe80::2938:1046:591:8387 prefixlen 64 scopeid 0x20<link>* * inet6 5001:1::10 prefixlen 64 scopeid 0x0<global>* localhost.localdomain(config-router)# *do show running-config* Building configuration... Current configuration: ! frr version 7.2 frr defaults traditional hostname localhost.localdomain ! *router bgp 65002 bgp router-id 222.222.222.222 no bgp default ipv4-unicast neighbor 5001:1::9 remote-as 65001 ! address-family ipv6 unicast network 8001:1::/64 neighbor 5001:1::9 activate exit-address-family* ! line vty ! end localhost.localdomain(config-router)# *do show ip bgp ipv6 summary* IPv6 Unicast Summary: BGP router identifier 222.222.222.222, local AS number 65002 vrf-id 0 BGP table version 2 RIB entries 3, using 552 bytes of memory Peers 1, using 20 KiB of memory Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd *5001:1::9 4 65001 9 9 0 0 0 00:04:48 1* Total number of neighbors 1 localhost.localdomain(config-router)# *do show ipv6 route bgp* Codes: K - kernel route, C - connected, S - static, R - RIPng, O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, f - OpenFabric, > - selected route, * - FIB route, q - queued route, r - rejected route *B>* 2003:4001:5001::/64 [20/0] via fe80::6548:ed45:d5d:b578, ens4, 00:05:08* Thanks & Regards, Sandeep Kumar
Can you try the solution suggested in the comment of the github issue https://github.com/FRRouting/frr/issues/10009? Specifically, with the command
set ipv6 next-hop prefer-global
in the route-map context. Shelton On Tue, Mar 15, 2022 at 6:19 AM SANDEEP KUMAR <sandeepkumar2016000@gmail.com> wrote:
Hi All,
BGP connection between 2 Nodes with IPv6 on global IPs and want to route via global ipv6 address not via ipv6 link local address
I have made the bgp connection with global ipv6 address of interface and advertising the ipv6 route when advertising the route then bgp route added on Node2 for *2003:4001:5001::/64 via **fe80::6548:ed45:d5d:b578:link address of Node1 **but i want route with via * *5001:1::9 global ipv6 address (**2003:4001:5001::/64 via **5001:1::9) * Similarly when we advertise 8001:1::/64 from Node2, *So want help so that I can achieve the bgp route added on Node1 and Node2 via global ipv6 address not with ipv6 link address*
2003:4001:5001::/64 ------------[Node1]<===========================>[Node2]------------- 8001:1::/64 ASN:65001
ASN:65002 *5001:1::9:global * *5001:1::10:global* *fe80::6548:ed45:d5d:b578:link * *fe80::2938:1046:591:8387:link*
*[Node1 configuration and interface info]* [root@localhost centosecmp]#* ifconfig ens5|grep inet* inet 10.5.10.9 netmask 255.255.255.0 broadcast 10.5.10.255 *inet6 5001:1::9 prefixlen 64 scopeid 0x0<global>* *inet6 fe80::6548:ed45:d5d:b578 prefixlen 64 scopeid 0x20<link>*
localhost.localdomain(config-router)# *do show running-config* Building configuration...
Current configuration: ! frr version 7.2 frr defaults traditional hostname localhost.localdomain !
*router bgp 65001 bgp router-id 1.1.1.1 no bgp default ipv4-unicast neighbor 5001:1::10 remote-as 65002 ! address-family ipv6 unicast network 2003:4001:5001::/64 neighbor 5001:1::10 activate exit-address-family* ! line vty ! end localhost.localdomain(config-router)#* do show ip bgp ipv6 summary*
IPv6 Unicast Summary: BGP router identifier 1.1.1.1, local AS number 65001 vrf-id 0 BGP table version 2 RIB entries 3, using 552 bytes of memory Peers 1, using 20 KiB of memory
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd *5001:1::10 4 65002 7 7 0 0 0 00:02:13 1*
Total number of neighbors 1 localhost.localdomain(config-router)# *do show ipv6 route bgp* Codes: K - kernel route, C - connected, S - static, R - RIPng, O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, f - OpenFabric, > - selected route, * - FIB route, q - queued route, r - rejected route
*B>* 8001:1::/64 [20/0] via fe80::2938:1046:591:8387, ens5, 00:02:19*
*[Node2 configuration and interface info]* [root@localhost centosecmp]# *ifconfig ens4|grep inet* inet 10.5.10.10 netmask 255.255.255.0 broadcast 10.5.10.255 *inet6 fe80::2938:1046:591:8387 prefixlen 64 scopeid 0x20<link>* * inet6 5001:1::10 prefixlen 64 scopeid 0x0<global>*
localhost.localdomain(config-router)# *do show running-config* Building configuration...
Current configuration: ! frr version 7.2 frr defaults traditional hostname localhost.localdomain !
*router bgp 65002 bgp router-id 222.222.222.222 no bgp default ipv4-unicast neighbor 5001:1::9 remote-as 65001 ! address-family ipv6 unicast network 8001:1::/64 neighbor 5001:1::9 activate exit-address-family* ! line vty ! end localhost.localdomain(config-router)# *do show ip bgp ipv6 summary*
IPv6 Unicast Summary: BGP router identifier 222.222.222.222, local AS number 65002 vrf-id 0 BGP table version 2 RIB entries 3, using 552 bytes of memory Peers 1, using 20 KiB of memory
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd *5001:1::9 4 65001 9 9 0 0 0 00:04:48 1*
Total number of neighbors 1 localhost.localdomain(config-router)# *do show ipv6 route bgp* Codes: K - kernel route, C - connected, S - static, R - RIPng, O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, f - OpenFabric, > - selected route, * - FIB route, q - queued route, r - rejected route
*B>* 2003:4001:5001::/64 [20/0] via fe80::6548:ed45:d5d:b578, ens4, 00:05:08*
Thanks & Regards, Sandeep Kumar
_______________________________________________ dev mailing list dev@lists.frrouting.org https://lists.frrouting.org/listinfo/dev
participants (2)
-
SANDEEP KUMAR -
Xiaodong Xu