On Tue, 4 May 2021 at 07:24, Mark Tinka <mark@tinka.africa> wrote:
Junos:
2c0f:feb0::1/128 *[IS-IS/18] 02:43:49, metric 5870 to fe80::1205:caff:fe86:4ac3 via et-4/0/2.0 to fe80::5287:89ff:fef3:25c3 via et-4/0/2.0 to fe80::1205:caff:fe86:4b10 via et-5/0/2.0 > to fe80::5287:89ff:fef3:2610 via et-5/0/2.0
IOS XE: I2 2C0F:FEB0::1/128 [115/6410] via FE80::1205:CAFF:FE86:4AC3, TenGigabitEthernet1/0/0 via FE80::1205:CAFF:FE86:4B10, TenGigabitEthernet0/0/0 via FE80::5287:89FF:FEF3:25C3, TenGigabitEthernet1/0/0 via FE80::5287:89FF:FEF3:2610, TenGigabitEthernet0/0/0
IOS XR: i L2 2c0f:feb0::1/128 [115/5870] via fe80::1205:caff:fe86:4b10, 02:45:22, HundredGigE0/3/0/0 (!) [115/5810] via fe80::f60f:1bff:feb0:75c4, 02:45:22, HundredGigE0/2/0/1
SROS: 2001:218:0:1000::1/128 Remote ISIS 48d22h13m 18 fe80::42de:adff:fe98:87e4-"lag1" 25301 ---- https://tools.ietf.org/html/rfc5308 For Hello PDUs, the "Interface Address" TLV MUST contain only the link-local IPv6 addresses assigned to the interface that is sending the Hello. For LSPs, the "Interface Address" TLVs MUST contain only the non-link-local IPv6 addresses assigned to the IS. ---- These are hello derived: A:ytti@a04.chcgil09.us.bb# show router isis adjacency r22.chcgil09.us.bb-re0 detail |match Neigh IPv6 Neighbor : fe80::42de:adff:fe98:87e4 IPv4 Neighbor : 129.250.3.205 Vendors do not have the option to use GUA while being RFC5308 compliant. -- ++ytti