Hi,
I am trying to use Host stack of VPP for UDP connection through VCL
library.
Server application listen on port 7891.
But when i try to connect to this server, the connection is not successful
saying (no listener).
But the same app when i change to use TCP it works fine.
Below is the trace info and VPP version information. Could some one please
let me know what is
the issue in this? Does any one tried with VCL for UDP before and succeeded?
Thanks & Regards,
Satish.
vpp# show trace
------------------- Start of thread 0 vpp_main -------------------
Packet 1
00:52:47:772356: dpdk-input
GigabitEthernet0/8/0 rx queue 0
buffer 0x3333: current data 14, length 46, free-list 0, clone-count 0,
totlen-nifb 0, trace 0x0
ext-hdr-valid
l4-cksum-computed l4-cksum-correct l2-hdr-offset 0
l3-hdr-offset 14
PKT MBUF: port 0, nb_segs 1, pkt_len 60
buf_len 2176, data_len 60, ol_flags 0x0, data_off 128, phys_addr
0x1f8ccd40
packet_type 0x0 l2_len 0 l3_len 0 outer_l2_len 0 outer_l3_len 0
IP4: 08:00:27:02:dd:ad -> 08:00:27:f9:67:0c
UDP: 172.28.128.5 -> 172.28.128.3
tos 0x00, ttl 64, length 37, checksum 0x38e9
fragment id 0xa99d, flags DONT_FRAGMENT
UDP: 37797 -> 7891
length 17, checksum 0x63da
00:52:47:772392: ip4-input
UDP: 172.28.128.5 -> 172.28.128.3
tos 0x00, ttl 64, length 37, checksum 0x38e9
fragment id 0xa99d, flags DONT_FRAGMENT
UDP: 37797 -> 7891
length 17, checksum 0x63da
00:52:47:772396: ip4-lookup
fib 0 dpo-idx 7 flow hash: 0x00000000
UDP: 172.28.128.5 -> 172.28.128.3
tos 0x00, ttl 64, length 37, checksum 0x38e9
fragment id 0xa99d, flags DONT_FRAGMENT
UDP: 37797 -> 7891
length 17, checksum 0x63da
00:52:47:772398: ip4-local
UDP: 172.28.128.5 -> 172.28.128.3
tos 0x00, ttl 64, length 37, checksum 0x38e9
fragment id 0xa99d, flags DONT_FRAGMENT
UDP: 37797 -> 7891
length 17, checksum 0x63da
00:52:47:772401: ip4-udp-lookup
UDP: src-port 37797 dst-port 7891 (no listener)
00:52:47:772406: ip4-icmp-error
UDP: 172.28.128.5 -> 172.28.128.3
tos 0x00, ttl 64, length 37, checksum 0x38e9
fragment id 0xa99d, flags DONT_FRAGMENT
UDP: 37797 -> 7891
length 17, checksum 0x63da
vpp# show version
vpp v18.04-rc0~482-gf6647e0 built by vagrant on localhost at Mon Mar 26
23:54:12 PDT 2018
