I will refraze my question: I want ssh from s3048 to F750 through s5248, here are results of routing setup: on s3048: kem-s3048#show ip route

Codes: C - connected, S - static, R - RIP,
B - BGP, IN - internal BGP, EX - external BGP,LO - Locally Originated,
O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, i - IS-IS, L1 - IS-IS level-1,
L2 - IS-IS level-2, IA - IS-IS inter area, * - candidate default,
> - non-active route, + - summary route

Gateway of last resort is not set

Destination Gateway Dist/Metric Last Change
----------- ------- ----------- -----------
C 10.10.10.0/24 Direct, Gi 1/47 0/0 2w6d
C 10.10.20.0/24 Direct, Gi 1/48 0/0 2w6d
S 192.168.120.0/24 via 10.10.10.11, Gi 1/47 1/0 00:57:49

, on s5248f:
kem-s5248f-a# show ip route
Codes: C - connected
S - static
B - BGP, IN - internal BGP, EX - external BGP, EV - EVPN BGP
O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, * - candidate default,
+ - summary route, > - non-active route
Gateway of last resort is not set
Destination Gateway Dist/Metric Last Change
----------------------------------------------------------------------------------------------------------
C 192.168.100.0/24 via 192.168.100.10 vlan10 0/0 2 weeks 6 days 04:42:47
C 192.168.120.0/24 via 192.168.120.2 vlan20 0/0 3 weeks 3 days 01:00:37
C 192.168.130.0/24 via 192.168.130.2 vlan30 0/0 2 weeks 6 days 04:42:47

, on f750:
root@kemsc01:/home/op# ip route show
default via 130.237.185.1 dev eno8303 proto static metric 102
10.10.10.0/24 via 192.168.120.1 dev eno12399np0
130.237.185.0/24 dev eno8303 proto kernel scope link src 130.237.185.79 metric 102
192.168.120.0/24 dev eno12399np0 proto kernel scope link src 192.168.120.10
192.168.200.0/24 dev eno12409np1 proto kernel scope link src 192.168.200.10 metric 101

now I have connection between s3048 and s5248f and I have connection between s5248f and F750.

What I do not have is connection between s3048 and F750

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