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[root@ocp-k8s-test2 ~]# route -n8 r" ?3 ~$ _! h4 C8 q: Y9 A
Kernel IP routing table# u2 q/ T1 x6 | |- L
Destination Gateway Genmask Flags Metric Ref Use Iface
& {" Y: a9 _% C9 n1 X169.254.169.254 192.168.101.65 255.255.255.255 UGH 0 0 0 eth0
) K) ` ~; L' l; I4 H! v. C4 Z192.168.100.0 0.0.0.0 255.255.255.224 U 0 0 0 eth0* R) j2 \: A/ j6 b' a: n
192.168.100.32 0.0.0.0 255.255.255.224 U 0 0 0 eth0
Z; e) |0 ^' D/ g- f7 I& u192.168.100.64 0.0.0.0 255.255.255.224 U 0 0 0 eth0
9 p2 ]2 F2 x' u" C2 f6 g" L192.168.100.96 0.0.0.0 255.255.255.224 U 0 0 0 eth0
3 C% w3 }. _( y6 g9 ~# ~192.168.100.128 0.0.0.0 255.255.255.224 U 0 0 0 eth09 T& V* G% {! K/ h! {& U
192.168.100.160 0.0.0.0 255.255.255.224 U 0 0 0 eth0
9 v" J$ }; z, f2 E192.168.100.192 0.0.0.0 255.255.255.224 U 0 0 0 eth0
% d" ]/ q! p% i3 U0 L# Z. B192.168.100.224 0.0.0.0 255.255.255.224 U 0 0 0 eth0
/ q9 v& C4 E' n+ m192.168.101.0 0.0.0.0 255.255.255.224 U 0 0 0 eth0( H/ z P8 P, m& |
192.168.101.64 0.0.0.0 255.255.255.224 U 0 0 0 eth0
+ z3 s. L( Q6 o& X: p. b- y[root@ocp-k8s-test2 ~]# ping www.baidu.com
8 X+ ^; t( C6 I# n N7 aping: www.baidu.com: Name or service not known+ G* {0 q2 V0 ~& ]# x7 D2 D
[root@ocp-k8s-test2 ~]# ping 192.168.0.1
2 i; @/ [' I; H) _7 iconnect: Network is unreachable
* r/ j+ q8 O W! g% g[root@ocp-k8s-test2 ~]# ip addr
( }( ]0 d+ A- V# p( m1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
! `, F t: c" d link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[. `5 q6 O4 F, F6 h# f C inet 127.0.0.1/8 scope host lo
/ v& i- e+ E3 D n6 o; ? valid_lft forever preferred_lft forever
: F" S% A( C& L! H; ` inet6 ::1/128 scope host
$ X2 T% j8 F9 g2 I( L( c* } valid_lft forever preferred_lft forever0 Q9 A4 B+ ~) k" u. r
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 10006 [+ w% b/ Q1 c6 I
link/ether fa:16:3e:50:eb:dc brd ff:ff:ff:ff:ff:ff
7 Y$ M2 q; J( r inet 192.168.101.67/27 brd 192.168.101.95 scope global eth01 g* s, B9 i1 U; T8 I0 D
valid_lft forever preferred_lft forever
) |/ H+ g. l5 `. ?4 X8 r) | inet6 fe80::f816:3eff:fe50:ebdc/64 scope link / Y8 R# q- l! g3 g: `% e2 M6 C
valid_lft forever preferred_lft forever
3 C" G P; `. q; H* q% [
- V/ J$ W) |1 w* a- x( ~1 @如果我们重启网络服务：1 K9 ?% E, H c1 ]/ p8 i
systemctl restart network.service B$ T# n" G) t _2 p! ~! _% H" `% A
之后
0 r( A6 c5 d2 h( q
9 a! a: s5 U" s* @3 b$ j- k, q[root@ocp-k8s-test2 ~]# systemctl restart network.service 9 G( `/ l7 j" e+ x- f# w& E$ i: P
[root@ocp-k8s-test2 ~]# " ?. t% _' l! }. F" P5 \6 x. r
2 i! K+ K! a# E6 F# {/ [路由发生变化：
2 H9 h' G8 g$ R! t/ z[root@ocp-k8s-test2 ~]# route -n9 q8 s8 ]/ A3 c0 ]) b# O
Kernel IP routing table# `% g. ^/ Y6 S4 H7 j
Destination Gateway Genmask Flags Metric Ref Use Iface* S. ^+ ^% J! M
0.0.0.0 192.168.100.1 0.0.0.0 UG 100 0 0 eth0
9 C4 N7 G- a$ u% y+ O; \( r* o169.254.169.254 192.168.101.65 255.255.255.255 UGH 100 0 0 eth02 V K4 e: v. [! u1 E6 g8 I! u
192.168.100.0 0.0.0.0 255.255.255.224 U 100 0 0 eth06 L A1 \- |$ v% a6 A% m" x
192.168.100.32 0.0.0.0 255.255.255.224 U 100 0 0 eth0/ D, }4 _2 J; z
192.168.100.64 0.0.0.0 255.255.255.224 U 100 0 0 eth0/ `3 R6 A4 b! ?3 I' B
192.168.100.96 0.0.0.0 255.255.255.224 U 100 0 0 eth0
& ?2 S1 E L! D4 A4 {5 u192.168.100.128 0.0.0.0 255.255.255.224 U 100 0 0 eth0- Z" X4 ]2 U* v. e8 B
192.168.100.160 0.0.0.0 255.255.255.224 U 100 0 0 eth09 |4 S% G! U/ B9 M
192.168.100.192 0.0.0.0 255.255.255.224 U 100 0 0 eth0
! |2 t' D6 `' F0 ?6 j' Z" I192.168.100.224 0.0.0.0 255.255.255.224 U 100 0 0 eth00 n8 R' O" [& |" }( N
192.168.101.0 0.0.0.0 255.255.255.224 U 100 0 0 eth0
Z# W P5 `: U7 s; s& j: f192.168.101.64 0.0.0.0 255.255.255.224 U 100 0 0 eth0* J. S2 v3 ~& I$ q+ k* {& M
此时增加了，192.168.100.1的路由网络。9 Y; `* E% u, T5 h: m3 x9 u
* e" ^) ?% _6 o
ping 外网可以通了，7 i* m( p: ]4 M: s+ D. M1 t+ X; q- r
[root@ocp-k8s-test2 ~]# ping www.baidu.com
C' G0 _* f* Z. L3 g5 {/ S; JPING www.a.shifen.com (220.181.38.150) 56(84) bytes of data.! b& Z6 i/ a, Z% }7 L
64 bytes from 220.181.38.150 (220.181.38.150): icmp_seq=1 ttl=53 time=4.32 ms, x8 g& o0 d$ N
^C
& Z) F' M. k, T3 q x X! J1 j; `3 e--- www.a.shifen.com ping statistics ---+ Y4 v0 h i) m$ Q% Q
1 packets transmitted, 1 received, 0% packet loss, time 0ms
& d5 l1 k! q/ V7 Srtt min/avg/max/mdev = 4.328/4.328/4.328/0.000 ms- ]0 f& D0 Z* v1 o; y. f8 Q& x
[root@ocp-k8s-test2 ~]# ping 192.168.0.10 Z: @6 ^) T, ~% x! Z
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
) @) j0 S- C! ~5 r64 bytes from 192.168.0.1: icmp_seq=1 ttl=254 time=0.239 ms) w5 M! w9 |, A0 Y* N
^C3 c! f& G' f$ R6 F* V* |2 \, J& p0 ?
--- 192.168.0.1 ping statistics ---
3 i# @4 U( _) @& Z' K- b1 packets transmitted, 1 received, 0% packet loss, time 0ms! m# j" Y5 f% M3 q/ u; h9 C# G
rtt min/avg/max/mdev = 0.239/0.239/0.239/0.000 ms
( ], d+ X9 o1 S' W% f# Y) J[root@ocp-k8s-test2 ~]#
6 G* M9 \( Z5 \( m# T
/ Y6 G% G' c, I: ]4 J3 ]+ [5 v1 i, @+ b* ^# `- P, k" K
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发表于 2022-7-29 17:01:21