After explicitly add a route:
DBGvpp# ip route add 3.3.3.3 via gre1
DBGvpp# show ip fib 3.3.3.3/32
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto flowlabel
] epoch:0 flags:none locks:[adjacency:2, recursive-resolution:1,
default-route:1, ]
3.3.3.3/32 fib:0 index:16 locks:5
CLI refs:1 entry-flags:attached, src-flags:added,contributing,active,
path-list:[20] locks:2 flags:shared, uPRF-list:12 len:1 itfs:[2, ]
path:[26] pl-index:20 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved, cfg-flags:attached,
3.3.3.3 gre1
[@0]: ipv4 via 3.3.3.3 gre1: mtu:9000 next:4
4500000000000000fe2fb8cb010101010101010100000800
stacked-on entry:11:
[@3]: ipv4 via 1.1.1.1 memif1/0: mtu:9000 next:3
02fe21058f7502fe049eea920800
adjacency refs:1 entry-flags:attached, src-flags:added, cover:-1
path-list:[21] locks:1 uPRF-list:24 len:1 itfs:[2, ]
path:[25] pl-index:21 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved,
3.3.3.3 gre1
[@0]: ipv4 via 3.3.3.3 gre1: mtu:9000 next:4
4500000000000000fe2fb8cb010101010101010100000800
stacked-on entry:11:
[@3]: ipv4 via 1.1.1.1 memif1/0: mtu:9000 next:3
02fe21058f7502fe049eea920800
Extensions:
path:25
recursive-resolution refs:1 src-flags:added, cover:-1
forwarding: unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:16 buckets:1 uRPF:12 to:[0:0]]
[0] [@6]: ipv4 via 3.3.3.3 gre1: mtu:9000 next:4
4500000000000000fe2fb8cb010101010101010100000800
stacked-on entry:11:
[@3]: ipv4 via 1.1.1.1 memif1/0: mtu:9000 next:3
02fe21058f7502fe049eea920800
I doubt this step is necessary?
在 2021/2/22 下午8:53, yedg 写道:
Hi:
I try to config a mgre interface fellow those steps, then i get an
UNRESOLVED fib entry, is it right? I think it should be
unicast-ip4-chain?
any examples of mgre config? Thinks.
create memif socket id 1 filename /work/memif1
create interface memif socket-id 1 master
set interface state memif1/0 up
set interface ip addr memif1/0 1.1.1.2/24
set interface rx-mode memif1/0 interrupt
create gre tunnel src 1.1.1.2 instance 1 multipoint
set interface state gre1 up
set interface ip addr gre1 2.1.1.2/32
create teib gre1 peer 3.3.3.3 nh 1.1.1.1
DBGvpp# show ip fib 3.3.3.3/32
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto
flowlabel ] epoch:0 flags:none locks:[adjacency:2,
recursive-resolution:1, default-route:1, ]
3.3.3.3/32 fib:0 index:16 locks:4
adjacency refs:1 entry-flags:attached,
src-flags:added,contributing,active, cover:0
path-list:[21] locks:2 uPRF-list:24 len:1 itfs:[2, ]
path:[25] pl-index:21 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved,
3.3.3.3 gre1
[@0]: ipv4 via 3.3.3.3 gre1: mtu:9000 next:4
4500000000000000fe2fb8cb010101010101010100000800
stacked-on entry:11:
[@3]: ipv4 via 1.1.1.1 memif1/0: mtu:9000 next:3
02fe21058f7502fe049eea920800
Extensions:
path:25
recursive-resolution refs:1 src-flags:added, cover:-1
forwarding: UNRESOLVED
DBGvpp# show adj
[@0] ipv4-glean: [src:0.0.0.0/0] memif1/0: mtu:9000 next:1
ffffffffffff02fe049eea920806
[@1] ipv4-glean: [src:1.1.1.0/24] memif1/0: mtu:9000 next:1
ffffffffffff02fe049eea920806
[@2] ipv4 via 1.1.1.1 memif1/0: mtu:9000 next:3
02fe21058f7502fe049eea920800
[@3] ipv4 via 3.3.3.3 gre1: mtu:9000 next:4
4500000000000000fe2fb8cb010101010101010100000800
stacked-on entry:11:
[@3]: ipv4 via 1.1.1.1 memif1/0: mtu:9000 next:3
02fe21058f7502fe049eea920800
DBGvpp# show teib
[0] gre1:3.3.3.3 via [0]:1.1.1.1/32
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