bgp done

diff --git a/README.md b/README.md
index 0b989e7ed79cd41961996291c17a1eba71107e57..e16d8911765c348ae6a59321c786b61e51bc5e9d 100644 (file)
--- a/README.md
+++ b/README.md
@@ -1965,6 +1965,12 @@ ip route add 192.168.10.0/24 dev enp3s0 table 5
 
 ip route flush cache
 
+# nexthop different network
+
+sudo ip route add 192.168.122.87 dev enp1s0
+
+sudo ip route add 10.0.2.0/24 via 192.168.122.87 dev enp1s0
+
 # rule 
 
 # all 

diff --git a/bgp/2506-03.xyz.md b/bgp/2506-03.xyz.md
index 7dfee91fbbd726e84baa7aec1f22f777c3ec4102..35344d699715a6fa72870108f38083477319e654 100644 (file)
--- a/bgp/2506-03.xyz.md
+++ b/bgp/2506-03.xyz.md
@@ -1,14 +1,56 @@
+
+#
+
+```shell
+thy@ubuntu24-server:~/box$ sudo ip a
+1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
+    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
+    inet 127.0.0.1/8 scope host lo
+       valid_lft forever preferred_lft forever
+    inet6 ::1/128 scope host noprefixroute 
+       valid_lft forever preferred_lft forever
+2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
+    link/ether 52:54:00:e2:07:25 brd ff:ff:ff:ff:ff:ff
+    inet 192.168.122.204/24 metric 100 brd 192.168.122.255 scope global dynamic enp1s0
+       valid_lft 2074sec preferred_lft 2074sec
+    inet6 fe80::5054:ff:fee2:725/64 scope link 
+       valid_lft forever preferred_lft forever
+
+
+```
+
+#
+
+```shell
+
+thy@ubuntu-24-2:~/box$ sudo ip a
+1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
+    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
+    inet 127.0.0.1/8 scope host lo
+       valid_lft forever preferred_lft forever
+    inet6 ::1/128 scope host noprefixroute 
+       valid_lft forever preferred_lft forever
+2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
+    link/ether 52:54:00:e2:07:21 brd ff:ff:ff:ff:ff:ff
+    inet 192.168.122.200/24 metric 100 brd 192.168.122.255 scope global dynamic enp1s0
+       valid_lft 2102sec preferred_lft 2102sec
+    inet6 fe80::5054:ff:fee2:721/64 scope link 
+       valid_lft forever preferred_lft forever
+
+```
 #
 
 ```shell
 
-seantywork@birds1:~$ nc -l 10.0.1.5 9999
+thy@ubuntu-24-2:~/box$ nc -l 192.168.122.200 9999
 
 ```
 
 ```shell
-seantywork@birds0:~$ nc 10.0.1.5 9999
+thy@ubuntu24-server:~/box$ nc 192.168.122.200 9999
 qwer
+
+
 ```
 
 #
@@ -39,65 +81,105 @@ sudo systemctl stop bird
 
 ```shell
 
-seantywork@birds0:~$ sudo ip a
+thy@ubuntu24-server:~/box$ ip a
 ...
-3: veth1@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
-    link/ether 92:af:e1:bd:1b:cb brd ff:ff:ff:ff:ff:ff link-netns net1
+4: veth1@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
+    link/ether 86:59:90:1a:4a:60 brd ff:ff:ff:ff:ff:ff link-netns net1
     inet 10.0.10.1/24 scope global veth1
        valid_lft forever preferred_lft forever
-    inet6 fe80::3ca0:f4ff:fe14:4e85/64 scope link 
+    inet6 fe80::8459:90ff:fe1a:4a60/64 scope link 
        valid_lft forever preferred_lft forever
+
 ```
 
 #
 
 ```shell
 
-seantywork@birds0:~$ sudo ip netns exec net1 ip a
+thy@ubuntu24-server:~/box$ sudo ip netns exec net1 ip a
 1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN group default qlen 1000
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
-2: veth2@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
-    link/ether 76:cc:32:53:1f:88 brd ff:ff:ff:ff:ff:ff link-netnsid 0
+2: veth2@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
+    link/ether 9a:45:f6:36:e8:cb brd ff:ff:ff:ff:ff:ff link-netnsid 0
     inet 10.0.10.2/24 scope global veth2
        valid_lft forever preferred_lft forever
-    inet6 fe80::74cc:32ff:fe53:1f88/64 scope link 
+    inet6 fe80::9845:f6ff:fe36:e8cb/64 scope link 
        valid_lft forever preferred_lft forever
 
 
+
 ```
 
 
 #
 
 ```shell
-seantywork@birds1:~$ sudo tshark -i veth1
+thy@ubuntu-24-2:~$ sudo tshark -i veth1
 Running as user "root" and group "root". This could be dangerous.
 Capturing on 'veth1'
 
+
 ```
 
 #
 
 ```shell
-seantywork@birds1:~$ sudo ip netns exec net1 nc -l 10.0.11.2 9999
+thy@ubuntu-24-2:~/box$ sudo ip netns exec net1 nc -l 10.0.11.2 9999
+
 
 ```
 ```shell
 
-seantywork@birds0:~$ sudo ip netns exec net1 nc 10.0.11.2 9999
+thy@ubuntu24-server:~/box$ sudo ip netns exec net1 nc 10.0.11.2 9999
+
 
 ```
 
 #
 
 ```shell
-seantywork@birds0:~$ sudo ip route add 10.0.1.5 dev ens4
-seantywork@birds0:~$ sudo ip route add 10.0.11.0/24 via 10.0.1.5 dev ens4
+thy@ubuntu24-server:~/box$ sudo ip route add 192.168.122.200 dev enp1s0
+thy@ubuntu24-server:~/box$ sudo ip route add 10.0.11.0/24 via 192.168.122.200 dev enp1s0
 ```
 
 ```shell
-seantywork@birds1:~$ sudo ip route add 10.0.1.4 dev ens4
-seantywork@birds1:~$ sudo ip route add 10.0.10.0/24 via 10.0.1.4 dev ens4
+thy@ubuntu-24-2:~/box$ sudo ip route add 192.168.122.204 dev enp1s0
+thy@ubuntu-24-2:~/box$ sudo ip route add 10.0.10.0/24 via 192.168.122.204 dev enp1s0
+```
+
+#
+
+```shell
+thy@ubuntu-24-2:~/box$ sudo ip netns exec net1 nc -l 10.0.11.2 9999
+
+```
+
+```shell
+thy@ubuntu24-server:~/box$ sudo ip netns exec net1 nc 10.0.11.2 9999
+asdf
+```
+#
+
+```shell
+
+    7 209.216657001    10.0.10.2 → 10.0.11.2    TCP 74 54346 → 9999 [SYN] Seq=0 Win=64240 Len=0 MSS=1460 SACK_PERM TSval=2153550491 TSecr=0 WS=128
+    8 209.216718956    10.0.11.2 → 10.0.10.2    TCP 74 9999 → 54346 [SYN, ACK] Seq=0 Ack=1 Win=65160 Len=0 MSS=1460 SACK_PERM TSval=1584711764 TSecr=2153550491 WS=128
+    9 209.217147388    10.0.10.2 → 10.0.11.2    TCP 66 54346 → 9999 [ACK] Seq=1 Ack=1 Win=64256 Len=0 TSval=2153550492 TSecr=1584711764
+   10 211.003022696    10.0.10.2 → 10.0.11.2    TCP 71 54346 → 9999 [PSH, ACK] Seq=1 Ack=1 Win=64256 Len=5 TSval=2153552277 TSecr=1584711764
+   11 211.003087706    10.0.11.2 → 10.0.10.2    TCP 66 9999 → 54346 [ACK] Seq=1 Ack=6 Win=65280 Len=0 TSval=1584713551 TSecr=2153552277
+
+```
+
+#
+
+```shell
+thy@ubuntu24-server:~/box$ sudo ip route del 192.168.122.200 dev enp1s0
+thy@ubuntu24-server:~/box$ sudo ip route del 10.0.11.0/24 via 192.168.122.200 dev enp1s0
+
+```
+```shell
+thy@ubuntu-24-2:~/box$ sudo ip route del 192.168.122.204 dev enp1s0
+thy@ubuntu-24-2:~/box$ sudo ip route del 10.0.10.0/24 via 192.168.122.204 dev enp1s0
 
 ```
 
@@ -106,4 +188,135 @@ seantywork@birds1:~$ sudo ip route add 10.0.10.0/24 via 10.0.1.4 dev ens4
 ```shell
 vim /etc/bird/bird.conf
 
-```
\ No newline at end of file
+```
+
+
+#
+
+```shell
+sudo systemctl restart bird
+```
+
+#
+
+```shell
+thy@ubuntu24-server:~/box$ sudo birdc show protocols
+BIRD 1.6.8 ready.
+name     proto    table    state  since       info
+kernel1  Kernel   master   up     23:45:55    
+device1  Device   master   up     23:45:55    
+direct1  Direct   master   up     23:45:55    
+b0       BGP      master   up     23:45:59    Established  
+
+thy@ubuntu24-server:~/box$ sudo birdc show route
+BIRD 1.6.8 ready.
+10.0.10.0/24       dev veth1 [direct1 23:45:55] * (240)
+10.0.11.0/24       via 192.168.122.200 on enp1s0 [b0 23:45:59] * (100) [AS64521i]
+192.168.122.0/24   dev enp1s0 [direct1 23:45:55] * (240)
+                   via 192.168.122.200 on enp1s0 [b0 23:45:59] (100) [AS64521i]
+
+
+```
+```shell
+thy@ubuntu-24-2:~/box$ sudo birdc show protocols
+BIRD 1.6.8 ready.
+name     proto    table    state  since       info
+kernel1  Kernel   master   up     23:45:59    
+device1  Device   master   up     23:45:59    
+direct1  Direct   master   up     23:45:59    
+b1       BGP      master   up     23:45:59    Established 
+
+thy@ubuntu-24-2:~/box$ sudo birdc show route
+BIRD 1.6.8 ready.
+10.0.10.0/24       via 192.168.122.204 on enp1s0 [b1 23:45:59] * (100) [AS64520i]
+10.0.11.0/24       dev veth1 [direct1 23:45:59] * (240)
+192.168.122.0/24   dev enp1s0 [direct1 23:45:59] * (240)
+                   via 192.168.122.204 on enp1s0 [b1 23:45:59] (100) [AS64520i]
+
+
+```
+
+#
+
+```shell
+thy@ubuntu24-server:~/box$ sudo ip route
+default via 192.168.122.1 dev enp1s0 proto dhcp src 192.168.122.204 metric 100 
+10.0.10.0/24 dev veth1 proto kernel scope link src 10.0.10.1 
+10.0.11.0/24 via 192.168.122.200 dev enp1s0 proto bird 
+192.168.122.0/24 dev enp1s0 proto kernel scope link src 192.168.122.204 metric 100 
+192.168.122.1 dev enp1s0 proto dhcp scope link src 192.168.122.204 metric 100 
+```
+```shell
+thy@ubuntu-24-2:~/box$ sudo ip route
+default via 192.168.122.1 dev enp1s0 proto dhcp src 192.168.122.200 metric 100 
+10.0.10.0/24 via 192.168.122.204 dev enp1s0 proto bird 
+10.0.11.0/24 dev veth1 proto kernel scope link src 10.0.11.1 
+192.168.122.0/24 dev enp1s0 proto kernel scope link src 192.168.122.200 metric 100 
+192.168.122.1 dev enp1s0 proto dhcp scope link src 192.168.122.200 metric 100
+
+```
+
+#
+
+```shell
+thy@ubuntu24-server:~$ sudo tshark -i veth1
+Running as user "root" and group "root". This could be dangerous.
+Capturing on 'veth1'
+
+```
+```shell
+thy@ubuntu-24-2:~$ sudo tshark -i veth1
+Running as user "root" and group "root". This could be dangerous.
+Capturing on 'veth1'
+
+```
+
+#
+
+```shell
+
+thy@ubuntu-24-2:~/box$ sudo ip netns exec net1 nc -l 10.0.11.2 9999
+```
+
+```shell
+
+thy@ubuntu24-server:~/box$ sudo ip netns exec net1 nc 10.0.11.2 9999
+bgp helloo!!!!
+
+```
+
+#
+
+```shell
+thy@ubuntu24-server:~$ sudo tshark -i veth1
+Running as user "root" and group "root". This could be dangerous.
+Capturing on 'veth1'
+    1 0.000000000    10.0.10.2 → 10.0.11.2    TCP 74 53488 → 9999 [SYN] Seq=0 Win=64240 Len=0 MSS=1460 SACK_PERM TSval=2154111861 TSecr=0 WS=128
+    2 0.000337346    10.0.11.2 → 10.0.10.2    TCP 74 9999 → 53488 [SYN, ACK] Seq=0 Ack=1 Win=65160 Len=0 MSS=1460 SACK_PERM TSval=1585273134 TSecr=2154111861 WS=128
+    3 0.000354149    10.0.10.2 → 10.0.11.2    TCP 66 53488 → 9999 [ACK] Seq=1 Ack=1 Win=64256 Len=0 TSval=2154111861 TSecr=1585273134
+    4 5.292822389 86:59:90:1a:4a:60 → 9a:45:f6:36:e8:cb ARP 42 Who has 10.0.10.2? Tell 10.0.10.1
+    5 5.292843243 9a:45:f6:36:e8:cb → 86:59:90:1a:4a:60 ARP 42 Who has 10.0.10.1? Tell 10.0.10.2
+    6 5.293009682 86:59:90:1a:4a:60 → 9a:45:f6:36:e8:cb ARP 42 10.0.10.1 is at 86:59:90:1a:4a:60
+    7 5.292981525 9a:45:f6:36:e8:cb → 86:59:90:1a:4a:60 ARP 42 10.0.10.2 is at 9a:45:f6:36:e8:cb
+    8 8.448817263    10.0.10.2 → 10.0.11.2    TCP 81 53488 → 9999 [PSH, ACK] Seq=1 Ack=1 Win=64256 Len=15 TSval=2154120310 TSecr=1585273134
+    9 8.449367387    10.0.11.2 → 10.0.10.2    TCP 66 9999 → 53488 [ACK] Seq=1 Ack=16 Win=65152 Len=0 TSval=1585281583 TSecr=2154120310
+
+
+```
+
+```shell
+thy@ubuntu-24-2:~$ sudo tshark -i veth1
+Running as user "root" and group "root". This could be dangerous.
+Capturing on 'veth1'
+    1 0.000000000    10.0.10.2 → 10.0.11.2    TCP 74 53488 → 9999 [SYN] Seq=0 Win=64240 Len=0 MSS=1460 SACK_PERM TSval=2154111861 TSecr=0 WS=128
+    2 0.000056658    10.0.11.2 → 10.0.10.2    TCP 74 9999 → 53488 [SYN, ACK] Seq=0 Ack=1 Win=65160 Len=0 MSS=1460 SACK_PERM TSval=1585273134 TSecr=2154111861 WS=128
+    3 0.000197636    10.0.10.2 → 10.0.11.2    TCP 66 53488 → 9999 [ACK] Seq=1 Ack=1 Win=64256 Len=0 TSval=2154111861 TSecr=1585273134
+    4 5.093841101 06:63:34:0b:98:ef → 7e:9f:2d:eb:7c:33 ARP 42 Who has 10.0.11.2? Tell 10.0.11.1
+    5 5.093832531 7e:9f:2d:eb:7c:33 → 06:63:34:0b:98:ef ARP 42 Who has 10.0.11.1? Tell 10.0.11.2
+    6 5.093891327 06:63:34:0b:98:ef → 7e:9f:2d:eb:7c:33 ARP 42 10.0.11.1 is at 06:63:34:0b:98:ef
+    7 5.093898882 7e:9f:2d:eb:7c:33 → 06:63:34:0b:98:ef ARP 42 10.0.11.2 is at 7e:9f:2d:eb:7c:33
+    8 8.448882261    10.0.10.2 → 10.0.11.2    TCP 81 53488 → 9999 [PSH, ACK] Seq=1 Ack=1 Win=64256 Len=15 TSval=2154120310 TSecr=1585273134
+    9 8.448965966    10.0.11.2 → 10.0.10.2    TCP 66 9999 → 53488 [ACK] Seq=1 Ack=16 Win=65152 Len=0 TSval=1585281583 TSecr=2154120310
+
+```
+

diff --git a/bgp/bird0/bird.conf b/bgp/bird0/bird.conf
index f80af052305393161ea2f5babd121f207cbb0df3..d9901b288cc5742869b4555eb57f47906d8b3010 100644 (file)
--- a/bgp/bird0/bird.conf
+++ b/bgp/bird0/bird.conf
@@ -1,5 +1,5 @@
 
-router id 10.0.1.4;
+router id 192.168.122.204;
 
 protocol kernel {
   metric 0;
@@ -16,7 +16,7 @@ protocol direct {
 
 protocol bgp b0 {
   local as 64520;
-  neighbor 10.0.1.5 as 64521;
+  neighbor 192.168.122.200 as 64521;
   import all;
   export all;
 }
\ No newline at end of file

diff --git a/bgp/bird1/bird.conf b/bgp/bird1/bird.conf
index 81b3bb2964d33d5f90e104aa10b15af1c7b43c1c..64573ef753932deb5055c5863d7883ceacfb3b00 100644 (file)
--- a/bgp/bird1/bird.conf
+++ b/bgp/bird1/bird.conf
@@ -1,5 +1,5 @@
 
-router id 10.0.1.5;
+router id 192.168.122.200;
 
 protocol kernel {
   metric 0;
@@ -16,7 +16,7 @@ protocol direct {
 
 protocol bgp b1 {
   local as 64521;
-  neighbor 10.0.1.4 as 64520;
+  neighbor 192.168.122.204 as 64520;
   import all;
   export all;
 }
\ No newline at end of file